The effect of seam orientation on the flight of a baseball American Physical Society 2019-11-25 | The effect of seam orientation on the flight of a baseballAndrew Smith, Utah State UniversityRob Friedman, Pitching NinjaNazmus Sakib, Utah State UniversityJohn Garrett, Utah State UniversityBarton Smith, Utah State UniversityDOI: doi.org/10.1103/APS.DFD.2019.GFM.V0038The understanding of aerodynamics in baseball has, over the history of the game, been continuously evolving. This video demonstrates some of the complex behavior inherent in baseball flight due to the irregular seam locations on the ball and how additional forces, beyond those due to spin and gravity, can play a major role in determining the baseball's flight path.See other videos from the 2019 Gallery of Fluid Motion: gfm.aps.org
DGRAV Seminar Series: The Spins of Binary Black Holes following LIGO and Virgo’s third Observing Run APS Physics 2023-04-11 | Speakers: Prof. Salvatore Vitale (MIT) and Ms. Sylvia Biscoveanu (MIT)Topic: “The spins of binary black holes following LIGO and Virgo’s third observing run“
2023 Millie Dresselhaus CUWiP Keynote Lectureship: Nadya Mason APS Physics 2023-03-28 | Nadya Mason is the Rosalyn S. Yalow Professor of Physics at the University of Illinois at Urbana-Champaign, where she specializes in experimental studies of materials.
PHYSICS MATTERS: Gamma Factory — a tool-driven revolution? by Prof. Witek Krasny APS Physics 2023-03-28 | "Gamma Factory — a tool-driven revolution?" by Prof. Witek Krasnyengage.aps.org/fip/resources/activities/physics-matters
March Meeting Special Session Featuring Nobel Laureates APS Physics 2023-03-10 | Join us to welcome our renowned session chair and two esteemed recipients of The Nobel Prize in Physics 2022. This can’t-miss session will feature inspirational perspectives from all three luminaries:- Session chair David B. Haviland, PhD is a member of the Nobel Committee for Physics and will go behind-the-scenes on the nomination process, evaluating candidates and award history.- John F. Clauser, PhD will then deliver his insightful talk, Proof that Nonlocal Quantum Entanglement is Real.- Anton Zeilinger, PhD will wrap up the event as he delights attendees with A Voyage through Quantum Wonderland.The Nobel Prize in Physics 2022 was awarded to both Clauser and Zeilinger for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science. These and other experiments paved the way for quantum computers, quantum networks, and quantum encrypted communication.
Quantum To-Go Communication Training (Virtual Visit) APS Physics 2023-03-09 | Thank you for participating in the Quantum To-Go program. We are excited for you to bring Quantum Science and Technology to classrooms around the world. To ensure that you and your students get the most out of your visit, please complete this training video. At the end of the video, you will receive links to your slide template along with guidelines for customizing.High School/College Presentation: tinyurl.com/ddab2mutElementary/Middle School presentation: tinyurl.com/4nunxpejQuantum 101 Glossary: uwaterloo.ca/institute-for-quantum-computing/quantum-101/quantum-101-glossary
DGRAV Seminar Series: The Dawn of Pulsar Timing Array Gravitational-wave Astronomy APS Physics 2023-03-03 | Speakers: Prof. Stephen Taylor (Vanderbilt U.) and Dr. Nihan Pol (Vanderbilt U.)Topic: The Dawn of Pulsar Timing Array Gravitational-wave Astronomy
JNIPER Coffee Hour with Michael Smith, March 2023 APS Physics 2023-03-02 | This is the presentation from Michael Smith, distinguished scientist at Oak Ridge National Lab and past-chair of the APS Committee on Informing the Public (CIP), at the March 2023 Joint Network for Informal Physics Education and Research (JNIPER) Coffee Hour. Michael shared a proposed APS statement and supporting white paper written by the CIP that calls on institutions to consider scientists’ public engagement efforts when making career advancement decisions.
DAMOP VAMOS: Virtual AMO Seminar | Mack Kira APS Physics 2023-03-01 | February 17th, 2023 DAMOP VAMOS: Virtual AMO Seminar | Mack Kira (University of Michigan)
PHYSICS MATTERS: The I.FAST CBI | Prof. Nicolas Delerue APS Physics 2023-02-24 | The I.FAST CBI: a challenge to engage students on the application of particle accelerators to the environment" by Prof. Nicolas Delerueengage.aps.org/fip/resources/activities/physics-mattersWebpage: http://www.ifast-cbi.particle-accelerators.eu/Article: https://acceleratingnews.web.cern.ch/news/issue-42/ifast-ifa/how-can-accelerators-address-environmental-challenges-10-day-event-near
V014: To Clog or Not To Clog? APS Physics 2023-02-17 | Ben McMillan, University of Cambridge, bm583@cam.ac.ukAlban Sauret, UC Santa Barbara, asauret@ucsb.eduNathalie Vriend, CU Boulder, nathalie.vriend@colorado.edu
V016: Salty Snowflakes: 2D crystallization in drying protein solutions APS Physics 2023-02-17 | Alireza Hooshanginejad, Brown University, MITDing Wen, MITQing Zhang, MITIrmgard Bischofberger, MIT
V010: Global orientational order in collective motion of active flexible filaments APS Physics 2023-02-17 | Madhuvanthi Athani, Johns Hopkins University, mathani1@jhu.eduDaniel Beller, Johns Hopkins University, d.a.beller@jhu.edu
V007: Mermaid Cereal APS Physics 2023-02-17 | Alireza Hooshanginejad, Brown UniversityVictoria Spradlin, the Wheeler SchoolJack-William Barotta, Brown UniversityRobert Hunt, Brown UniversityGiuseppe Pucci, CNRDaniel M. Harris, Brown University
V006: Kissing Bubbles APS Physics 2023-02-17 | Friedrich Walzel, Institute Charles Sadron, CNRS France, friedrich.walzel@etu.unistra.fr
V005: Emerging Topological Structures in Nematic Moiré Patterns APS Physics 2023-02-17 | Xinyu Wang, The Hong Kong University of Science and TechnologyJinghua Jiang, University of Science and Technology of China, The University of MemphisJuan Chen, University of Science and Technology of ChinaZhawure Asilehan, The University of MemphisWentao Tang, The Hong Kong University of Science and TechnologyChenhui Peng, University of Science and Technology of China, The University of MemphisRui Zhang, The Hong Kong University of Science and Technology
V004:The Life of a Thermal Marangoni Bubble APS Physics 2023-02-17 | Saurabh Nath, Department of Mechanical Engineering, saurabhn@mit.eduAmbre Bouillant, Physics of Fluids Group, Mesa+ Institute, University of Twente, ambrebouillant@gmail.comPanlin Jin, PMMH, CNRS, ESPCI Paris, PSL Research UniversityGuillaume Ricard, MSC, Université Paris Cité, CNRSDavid Quéré, PMMH, CNRS, ESPCI Paris, PSL Research University, david.quere@espci.fr
V003: Sheet’s Broken APS Physics 2023-02-17 | Carly Galvin, Northwestern University, carlygalvin2023@u.northwestern.eduBrendan Blackwell, Northwestern University, brendan.blackwell@northwestern.eduMichelle Driscoll, Northwestern University, michelle.driscoll@northwestern.edu
V001: Stimuli responsive bijels APS Physics 2023-02-17 | Nikhil Karthikeyan, Clemson Unversity, nkarthi@g.clemson.eduUlf D. Schiller, Clemson University, uschill@clemson.edu
GPC February Seminar on Climate Physics by Prof. Mara Freilich APS Physics 2023-02-16 | GPC February Seminar on Climate Physics by Prof. Mara Freilich
DBIO: Networking for introverts APS Physics 2023-02-14 | We often hear that networking is an important part of building a career, but building a network can be challenging for many people. Join us for a discussion, where panelists will share tips and tricks that they have used to overcome personal barriers to networking. This will be followed by a breakout session, where you can meet other networking novices, exchange ideas, and practice talking to strangers to warm-up for the March Meeting.Moderator: Suliana ManleyPanelists: Moumita Das, Mike Murrell, Alison Patteson, Sahand Rahi, Arpita Upadhyaya
DGRAV Seminar Series: Nonlinearities in Black-Hole Ringdowns APS Physics 2023-02-09 | Speaker: Keefe Mitman (Caltech) and Saul Teukolsy (Caltech)Topic: Nonlinearities in Black-Hole Ringdowns
JNIPER Coffee Hour with Helen Featherstone, February 2023 APS Physics 2023-02-07 | This is the presentation from Helen Featherstone, Head of Public Engagement at the University of Bath, at the February 2023 Joint Network for Informal Physics Education and Research (JNIPER) Coffee Hour. Dr. Featherstone shared the approach her office has taken to advocate for public engagement with research, and she provided examples from science faculty at her institution of this type of public engagement.
DBIO Seminar: Mental Health in Physics APS Physics 2023-01-27 | For a long time now, we have been seeing high rates of mental health issues, including anxiety and depression, among graduate students in many fields, including physics. In the wake of the pandemic, many of us are still feeling tired, burned out, or traumatized. What solutions can we find for these problems? How can we turn a culture of stigma into one of support? Are there unique issues to biological physics, or conversely are there ways in which we can ally with other disciplines to improve the situation? In this panel discussion, we will try to grapple with ways to improve the culture of mental health and discuss coping mechanisms that various members of the community have found, looking at mental health on an individual and a cultural level.
2023 APS Medal & Society Prizes Documentary APS Physics 2023-01-27 | The American Physical Society (APS) is a nonprofit membership organization working to advance the knowledge of physics. The APS Medal for Exceptional Achievement in Research recognizes contributions of the highest level that advance our knowledge and understanding of the physical universe in all its facets. The $50,000 prize is the highest honor of APS to recognize the achievement of researchers from across all fields of physics. Learn more: aps.org/programs/honors/prizes/apsmedal.cfm. The Julius Edgar Lilienfeld Prize recognizes outstanding contributions to physics and exceptional skills in lecturing to diverse audiences. It carries a prize of $10,000. Learn more: aps.org/programs/honors/prizes/lilienfeld.cfm. The George E. Valley, Jr. Prize recognizes an early-career individual for an outstanding scientific contribution to physics that is deemed to have significant potential for a dramatic impact on the field. It carries a prize of $10,000. Learn more: aps.org/programs/honors/prizes/valley.cfm.
SESAME: a Source of Light in the Middle East APS Physics 2023-01-24 | SESAME: a Source of Light in the Middle East by Prof. Eliezer RabinoviciSESAME is a cooperative venture by scientists and governments of the Middle East set up on the model of CERN (European Organization for Nuclear Research). Current members of SESAME are Cyprus, Egypt, Iran, Israel, Jordan, Pakistan, the Palestinian Authority, and Turkey. It is a Synchrotron Light source and it is being used by researchers to study a large variety of scientific questions.It has been constructed in Jordan and has been operating since 2018. It is also the first green light source.I will describe it's present scientific status.From a very personal viewpoint, I will sketch how this project has come into being starting in 1995. The story will move from the CERN cafeteria, crossing the Sinai desert to the completion of a high-quality scientific light source in Jordan. Remarks on the challenges such collaborations face in the present international environment will be offered.See every Physics Matters recording located here: engage.aps.org/fip/resources/activities/physics-matters-video
MASPG Seminar: The First Planetary Defense Test Mission APS Physics 2023-01-20 | The First Planetary Defense Test MissionSpeaker: Andrew Cheng, Johns Hopkins Applied Physics Lab and Lead Investigator for the DART missionOn September 26, 2022 the Double Asteroid Redirection Test (DART) mission impacted the asteroid Dimorphos, the moon of the binary asteroid system Didymos, to demonstrate changing the orbit of an asteroid by a kinetic impact. If one day an asteroid is discovered heading toward the Earth, a kinetic impact may be used to prevent the asteroid from colliding with Earth. The DART impact on Dimorphos changed its orbit period around Didymos by 33+/-1 minutes. This was the first time the orbit of a planetary body has been measurably altered by mankind. The DART impact produced massive streams of ejecta that extended tens of thousands of km from the asteroid, producing a comet-like dust tail. The momentum transfer to Dimorphos from the DART impact was 3.61+/-0.2 times greater than the momentum carried by the DART spacecraft, assuming equal densities of Dimorphos and Didymos. These results validated the high effectiveness of kinetic impact for asteroid deflection.
Dynamics of COVID-19 in a Contagious Water Droplet APS Physics 2023-01-19 | Dynamics of COVID-19 in a Contagious Water Droplet Yasser Aboelkassem, San Diego State UniversityDOI: doi.org/10.1103/APS.DFD.2020.GFM.V0017Computer graphics, modeling and simulations have been used to study the dynamics of COVID-19 inside a contagious water droplet during free falling and impact with surfaces. The water droplet is modeled using the soft body mechanics theory to adjust the push, pull and bending rigidity parameters to keep the droplet intact all the times. Virus loads was modeled using particle dynamics with collisions dynamic interactions. The goal of this work is to study the interaction between COVID-19 and surfaces which might help us to find ways to limit the spread of the virus within a closed environment.See other videos from the 2020 Gallery of Fluid Motion: gfm.aps.org
DBIO Seminar: Making the most of your postdoc training APS Physics 2023-01-03 | How does one get the most value out of their time as a postdoc in biophysics? What qualifies as "success" when you are a postdoc?These questions and more will be answered in this workshop sponsored by APS DBIO. A panel of academicians at various career stages will provide their insights into the purpose of postdoctoral training and how it can be used to prepare biophysicists for their future careers. In addition, they will talk about their personal experiences as successful, former postdocs and provide the audience with advice about how to effectively interact with other biophysicists and interdisciplinary collaborators.
MASPG Seminar: Galileo and the Science Deniers APS Physics 2023-01-03 | Galileo and the Science DeniersSpeaker: Mario Livio, Astrophysicist
“ALBA and the Physics for development by Prof. Caterina Biscari APS Physics 2022-12-21 | Over the past decade, the ALBA Synchrotron, the Spanish 3rd generation light source, has become an important pillar of the Spanish and European Research Area, providing research capabilities and a wide range of state-of-the-art instrumentation to a community of more than 6500 academic and industrial users.ALBA is prepared to leap to the 4th generation, boosting its impact on the user community and on the industrial use of the instrumentation, and reinforcing its educational vocation and training capacity. ALBA II, whose project has just started and is planned to be fully operative in the ‘30s, will combine the upgrade to low-emittance storage ring with the construction of new fully-optimized beamlines, the refurbishment of part of its instrumentation, the evolution of the data infrastructure.ALBA is open to the whole range of applications of synchrotron light, and at the same time is focusing its strategic areas to provide multimodal and correlative answers to the most urgent questions about health and sustainability for the future of our planet, in particular aiming at influencing the research on green energy, green catalysis, advanced materials, food production and conservation.
From Both Sides of the Table: How to Apply for a Faculty Job in the Field of Biological Physics APS Physics 2022-12-20 | After productive postdoctoral studies, now you want to look for a faculty position. You may have a number of questions about the process. Where to find the position announcement? Private or public universities? Primarily research or undergraduate institutes? Traditional physics departments or other departments? What to emphasize in the statements? How to interact with the recruitment committee? And many others...In this workshop sponsored by APS DBIO, a group of panelists at various career stages will provide to-do and not-to-do advice on job applications from perspectives of both recruiters and applicants.Moderator: Jianhua XingPanelists: Sarah Marzen, Jennifer Ross, Andrew Spakowitz, Jing Yan
JNIPER Coffee Hour with Lindsay House, December 2022 APS Physics 2022-12-13 | This is the presentation from the December 2022 Joint Network for Informal Physics Education and Research (JNIPER) Coffee Hour. The coffee hour was led by Lindsay House, creator of Dark Energy Explorers (zooniverse.org/projects/erinmc/dark-energy-explorers). We discussed online citizen science projects and assessment and education research possibilities with this form of public engagement.
Marbled Wrapping Paper Physics Experiment APS Physics 2022-12-09 | This is a fun and creative project, which you can enjoy with children, grandchildren, and friends as you prepare gifts for the holidays.Materials‧ Thick solid color (white works best) paper or solid color wrapping paper‧ Shaving cream‧ Food coloring‧ Knife or spatula‧ Fork, toothpick, skewer, or chopstick ‧ Knife or thick plastic card(such as a hotel key or credit card)Instructions1. Cover the bottom of a cookie sheet with a layer of shaving cream. Any brand is fine. Use the spatula to smooth it out till it is a single flat layer.2. Put drops of food coloring over the layer of shaving cream. Use as many colors as you’d like.3. Use the fork, toothpick, skewer, or chopstick to swirl the colors in the shaving cream. You should see a beautiful marbled pattern created on the top of the shaving cream.4. Once you are happy with the marble pattern, carefully lay the paper down on top of it making sure the paper makes contact everywhere.5. Lift up the paper and use the knife or thick plastic card to scrape off the shaving cream.6. Lay flat and leave to dry overnight. Wrap up your presents and enjoy!Science Behind Paper MarblingFood coloring is hydrophilic, meaning it’s “water loving.” When in water, the dye spreads out.However, if it’s dripped on something that is hydrophobic, or “water hating,” it can’t spread around. The soap bubbles in shaving cream aren’t hydrophobic or hydrophilic, but somewhere in between. This means the food coloring can sit on the surface as it is mixed and swirled. The wrapping paper, however, is hydrophilic. When the dye hits the paper, it stays there and moves around, which makes an even more marbled pattern. Since the shaving cream isn’t particularly hydrophilic, it can be scraped off the paper without removing the dye. When the paper dries completely, it makes an interesting paper in which to wrap gifts.
APS MASPG: Earths co-evolving geosphere and biosphere: A mineral evolution perspective APS Physics 2022-12-02 | APS Mid-Atlantic Senior Physicists Group: November Series"Earth's co-evolving geosphere and biosphere: A mineral evolution perspective" Speaker: Robert M. Hazen, Senior Scientist at the Carnegie Institution for Science and Robinson Professor of Earth Science, Emeritus, at George Mason University
DGRAV Seminar Series: Black Holes are Watching You APS Physics 2022-12-02 | Black Holes are Watching YouProf. Bob Wald (U. of Chicago) and Dr. Gautam Satishchandran (Princeton U.)
PHYSICS MATTERS to celebrate the 100 years of existence of the IUPAP APS Physics 2022-11-23 | The International Union of Pure and Applied Physics (IUPAP) has turned 100 years old in 2022!A centennial event has been organized on July 14-18, 2022. IUPAP is leading fellow scientific unions and other partners to promote and organize an International Year for Basic Sciences for Sustainable Development (IYBSSD) in 2022/2023. This PHYSICS MATTERS forum will gather IUPAP and APS governances, who will discuss their feedback and their critical insights w.r.t the role of Physics in the current international arena.The panelists are composed of:Michel SPIRO (IUPAP President)Silvina Ponce Dawson (IUPAP President designated)Laura Greene (former APS President)Monica Pepe-Altarelli (IUPAP)
Physical Review Fluids Tutorial for Authors and Referees APS Physics 2022-11-17 | On Wednesday, November 10, 2022, Physical Review Fluids co-lead editors Beverley McKeon and Eric Lauga, along with Managing Editor Brad Rubin, and Associate Editors Luminita Danaila, and Roberto Zenit presented an informative tutorial for current and prospective manuscript authors and referees.The editors provided helpful information on the manuscript submission and review processes, offering tips that will help you efficiently write and/or referee for the Physical Review Journals.
JNIPER Coffee Hour with LSOP, November 2022 APS Physics 2022-11-17 | This was the first coffee hour from the Joint Network for Informal Physics Education and Research (JNIPER). The coffee hour was led by Heather Michalak and Cherie Bornhorst of the Little Shop of Physics (https://www.lsop.colostate.edu/). They shared ideas and tips on what it took to start, grow, and sustain their science outreach program at Colorado State University.
GPC Seminar Series: Whither Sea Ice? by Prof. John Wettlaufer APS Physics 2022-11-16 | GPC Seminar Series: November Edition"Whither Sea Ice?" by Prof. John Wettlaufer, Yale University
Future of Biological Physics APS Physics 2022-11-16 | The Decadal Survey for Biological Physics suggested that there were four key scientific questions the next decade would tackle: what physics problems do organisms need to solve? How do living systems represent and process information? How do macroscopic functions of life emerge from interactions of many microscopic constituents? And, how do living systems navigate parameter space?Are there any big questions they missed? And, maybe more importantly, what can we do now to train ourselves and our students for the next decade of such questions and there many instantiations?The discussion will be stimulated by these scientific questions and education, funding, and inequality recommendations contained in the report.
PRJC: Lawson Criterion for Ignition Exceeded in Inertial Fusion Experiment APS Physics 2022-11-04 | For more than half a century, researchers around the world have been engaged in attempts to achieve fusion ignition as a proof of principle of various fusion concepts. Following the Lawson criterion, an ignited plasma is one where the fusion heating power is high enough to overcome all the physical processes that cool the fusion plasma, creating a positive thermodynamic feedback loop with rapidly increasing temperature. In inertially confined fusion, ignition is a state where the fusion plasma can begin “burn propagation” into surrounding cold fuel, enabling the possibility of high energy gain. While “scientific breakeven” (i.e., unity target gain) has not yet been achieved, Omar Hurricane (Lawrence Livermore National Lab) and colleagues report the first controlled fusion experiment, using laser indirect drive, on the National Ignition Facility to produce capsule gain (here 5.8) where they were able to reach ignition by nine different formulations of the Lawson criterion.Presented in this seminar Hurricane and colleagues gave a presentation recounting their methods and data from their controlled fusion experiment.
Mixing enhancement for binary fluids using PDE-constrained optimization APS Physics 2022-11-04 | The mixing of binary fluids by stirrers is a commonplace procedure in many industrial and natural settings, and mixing efficiency directly translates into more homogeneous final products, more enriched compounds, and often substantial economic savings in energy and input ingredients. Enhancements in mixing efficiency can be accomplished by unorthodox stirring protocols as well as modified stirrer shapes that utilize unsteady hydrodynamics and vortex-shedding features to instigate the formation of fluid filaments which ultimately succumb to diffusion and produce a homogeneous mixture. In their recently published Physical Review Fluids paper, Maximilian Eggl (Institute of Physiological Chemistry, University of Mainz Medical Center) and Peter J. Schmid (Department of Mechanical Engineering, KAUST) propose a PDE-constrained optimization approach to address the problem of mixing enhancement for binary fluids. Within a gradient-based framework, they targeted the stirring strategy as well as the cross-sectional shape of the stirrers to achieve improved mixedness over a given time horizon and within a prescribed energy budget. The optimization produced a significant enhancement in homogeneity in the initially separated fluids, suggesting promising modifications to traditional stirring protocols.Eggl sat down with the Physical Review Journal Club to discuss the results of their research. After the presentation a live question-and-answer session was moderated by PRFluids Editorial Board Member Viswanathan Kumaran (Indian Institute of Science, Bangalore, India).
Incorporating Biological Physics into Undergraduate Programs APS Physics 2022-11-04 | In this panel followed by small group discussions, we consider three different ways that biological physics can be incorporated into the undergraduate physics curriculum for physics majors: examples used in standard courses, strategic course adaptations, and biological physics or other interdisciplinary majors.
DGRAV Seminar Series: Searching for Ultralight Particles with Black Hole Superradiance APS Physics 2022-11-04 | Speaker: Professor Asimina Arvanitaki (Perimeter Institute) and Professor Masha Baryakhtar (U. Washington)Topic: Searching for Ultralight Particles with Black Hole Superradiance
FIP Physics Matters: Physics for Development and International Cooperation APS Physics 2022-10-31 | This talk will discusses how basic and applied physics can help address sustainable development goals in all countries, the importance of international cooperation, participation for all, the support for scientist in conflict, and importance of investing in national and international research facilities.Speaker: Dr. Kate Shaw, ICTP (IT) and University of Sussex (UK), ATLAS experiment at CERN
V0076 - Simulation of an RCCI Engine using the Pele Suite of Exascale Codes APS Physics 2022-10-27 | **2022 APS/DFD Milton van Dyke Award Winner (Video)Simulation of an RCCI Engine using the Pele Suite of Exascale CodesNicholas Wimer, National Renewable Energy LaboratoryLucas Esclapez, National Renewable Energy LaboratoryNicholas Brunhart-Lupo, National Renewable Energy LaboratoryMarc Henry de Frahan, National Renewable Energy LaboratoryMohammad Rahimi, National Renewable Energy LaboratoryMalik Hassanaly, National Renewable Energy LaboratoryJon Rood, National Renewable Energy LaboratoryShashank Yellapantula, National Renewable Energy Laboratory Hariswaran Sitaraman, National Renewable Energy LaboratoryBruce Perry, National Renewable Energy LaboratoryMichael Martin, National Renewable Energy LaboratoryOlga Doronina, National Renewable Energy LaboratorySreejith Nadakkal Appukuttan, National Renewable Energy LaboratoryMartin Rieth, Sandia National LaboratoryMarc Day, National Renewable Energy LaboratoryDOI: doi.org/10.1103/APS.DFD.2022.GFM.V0076We have developed the Pele suite of exascale codes for the simulation of compressible and low-Mach fluid flows. We have used both the compressible (PeleC) and low-Mach (PeleLMeX) versions of these codes to simulate a single cylinder of a Reactivity Controlled Compression Ignition (RCCI) engine down to micrometer scales. This suite of codes is open source and are available at the following links: github.com/AMReX-Combustion/PeleC and github.com/AMReX-Combustion/PeleLMeX.See other videos from the 2021 Gallery of Fluid Motion: gfm.aps.org
V0112 - Dancing over ridges: helical flows and transport APS Physics 2022-10-27 | "Dancing over ridges: helical flows and transportDanielle L. Chase, Princeton UniversityJames V. Roggeveen, Princeton UniversityChristina Kurzthaler, Max Planck Institute for the Physics of Complex SystemsHoward A. Stone, Princeton UniversityDOI: doi.org/10.1103/APS.DFD.2022.GFM.V0112We illustrate through experiments, numerics, and theory the rich dynamics at play when particles are moving near surfaces. We demonstrate that wavy surfaces induce helical motions which can lead to persistent drift perpendicular to the particle’s motion. We explore a diverse range of physical systems, including particles sedimenting near corrugations, as well as the dynamics of tracer particles being advected inflows over these surfaces. Such dynamics are relevant to the behavior of many biological and physical systems, where common assumptions of smooth boundaries might not be consistent with the physical picture.See other videos from the 2021 Gallery of Fluid Motion: gfm.aps.org"
V0090 - Direct numerical simulation of turbulent boundary layer APS Physics 2022-10-24 | "Direct numerical simulation of turbulent boundary layer with localized heat source: an analogy to simulate bushfireMinghang Li, Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC), Department of Mechanical and Aerospace Engineering, Monash UniversityShahram Karami, Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC), Department of Mechanical and Aerospace Engineering, Monash UniversityCallum Atkinson, Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC), Department of Mechanical and Aerospace Engineering, Monash UniversityJulio Soria, Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC), Department of Mechanical and Aerospace Engineering, Monash UniversityDOI: doi.org/10.1103/APS.DFD.2022.GFM.V0090See other videos from the 2021 Gallery of Fluid Motion: gfm.aps.org"
