Importing Piping Models into BOSfluids - PCF Files Dynaflow Research Group BV 2026-09-17 | Importing Piping Models into BOSfluids - PCF Files
New Content Water Hammer Analysis using - SPC119 Dynaflow Research Group BV 2022-11-29 | We are glad to announce that the BOSfluids course has been updated. The course has been restructured and expanded to provide insights on the latest version of the BOSfluids program. Whether you have previously participated in the course and are experienced with the program or whether you are a beginner, we invite you to check it out. You can find detailed course information on the EngineeringTrainer website. For a quick look and feel of the course, you can watch this content showcase Below is a list of updates made to the course:- Restructured the course for better learning experience.- Rerecorded most of the existing content in newest version of BOSfluids.- Added explanations for recently added element and node types.- Added extensive discussion on (quasi) steady state analyses.- Included the flood and drain analysis in the course.- Included explanations on Fluid-structure interaction.- Added additional tutorials, such as control systems and tube rupture analysis.- Added quick questions to test your knowledge.dynaflow.com/training/courses/bosfluids
Flooding cooling water ring Dynaflow Research Group BV 2022-11-18 | Velocity in a cooling water ring as it is flooded.
Introducing ISOtracer Dynaflow Research Group BV 2022-09-29 | ISOtracer is the fastest modeling tool for generating piping models from isometric drawings.It is specially build for engineers involved with modeling piping systems for static/dynamic stress simulations, fluid flow simulations or other piping systems.Using ISOtracer, managing your isometrics, generating a piping model and marking up changes has never been easier. ISOtracer will help you save valuable time when generating piping models from isometric drawings and is compatible by most of the large pipe stress packages (such as CAESAR II) and the DRG fluid flow software packages (BOSfluids/BOSpulse).For more information check the website: www.isotracer.com
Introducing BOSpulse Dynaflow Research Group BV 2022-09-29 | BOSpulse is a comprehensive software solution for performing pulsation analyses of piping systems involving reciprocating equipment such as reciprocating compressors (API 618) and reciprocating pumps (API 674). BOSpulse enables engineers to model both common and custom reciprocating equipment and the attached piping, to perform pulsation analyses, to check the results against the allowable pressure and shaking force amplitudes prescribed by the API standards, and to assess the impact of the shaking forces on the structural response of the piping system.This video shows the highlights of the 2022 version 5.0. For more information visit: www.bospulse.com
Introducing BOSfluids Dynaflow Research Group BV 2022-09-29 | BOSfluids is our powerful fluid dynamic simulation tool to perform surge analyses, simulate pump failures and analyze waterhammer events in an interactive and visual way. BOSfluids enables you to perform surge analyses in an interactive and visual way, giving you lots of opportunities for exploring your problem space fast and efficiently.BOSfluids is actually more than a surge analysis tool as it can simulate general steady state and transient flow conditions in piping systems, and help you perform coupled fluid-structure analyses. This video shows the highlights of the 2022 version 7.0. For more information and a free to download demo version visit www.bosfluids.com
Dynaflow Research Group Dynaflow Research Group BV 2022-09-06 | Dynaflow Research Group is a firm which specializes in the advanced end of the engineering spectrum. Dynaflow supports its clients in solving their most challenging engineering issues related to flow, vibrations, and fiberglass piping. We offer a unique combination of deep understanding of physics, engineering and software to develop sustainable solutions for our clients and society.
Fatigue screening methods according ASME BPV Code Dynaflow Research Group BV 2022-06-23 | When do you need to perform a fatigue analyses according ASME boiler and pressure vessel code? This webinar explains the screening methods that are provided in ASME-VIII-Div2. Both screening method A and B are explained.For more information: engineering.dynaflow.com
FRP Pipe Stress Analysis Webinar - Pipe stress envelope according to design standard ISO14692 - III Dynaflow Research Group BV 2022-06-16 | The stress envelope concept from ISO 14692 is used to verify the pipe stresses. In this 3-fold webinar it is explained how the envelope is constructed from material test data as well as how it is applied in for example CAESAR II.The first two parts of the webinar series can be viewed through the link below. If you have any questions on those subjects, leave them in the comments. We will address them during the live session.youtube.com/playlist?list=PLHIfrQpGEoh1b6XKONvAkpe3GVKcGRcPLFor more information on pipe stress analyses for Fiberglass piping: engineering.dynaflow.com/service/fiberglass-engineering
FRP Pipe Stress Analysis Webinar - Pipe stress envelope according to design standard ISO14692 - II Dynaflow Research Group BV 2022-06-09 | The stress envelope concept from ISO 14692 is used to verify the pipe stresses. In this 3-fold webinar it is explained how the envelope is constructed from material test data as well as how it is applied in for example CAESAR II.For more information on pipe stress analyses for Fiberglass piping: engineering.dynaflow.com/service/fiberglass-engineering
FRP Pipe Stress Analysis Webinar - Pipe stress envelope according to design standard ISO14692 - I Dynaflow Research Group BV 2022-06-02 | The stress envelope concept from ISO 14692 is used to verify the pipe stresses. In this 3-fold webinar it is explained how the envelope is constructed from material test data as well as how it is applied in for example CAESAR II.For more information on pipe stress analyses for Fiberglass piping: engineering.dynaflow.com/service/fiberglass-engineering
Dynaflow Discussion - Safety factors in piping industry Dynaflow Research Group BV 2022-03-18 | Dynaflow Discussion - Safety factors in piping industry - 17 March 2022 - 3 PM CETEngineering is not a research project. This means that the models that you produce are not always 100% accurate. To make sure that uncertainties in design do not immediately result in failures in your piping systems safety factors are used in the analysis. In this Dynaflow Discussion session Mick Bouman and Johan Bosselaar will discuss the safety factors that you will encounter during piping design and analysis. You are invited to participate in the discussion through the live chat. Let us know your questions or remarks.With these discussions we want encourage fellow engineers to keep thinking critically and accumulate more knowledge at the same time. We hope that this will increase the design quality of engineering projects all over the globe.For more information about Dynaflow:dynaflow.com
Orifice Filling Dynaflow Research Group BV 2021-11-09 | Filling up systems such as dry firewater systems can cause significant unbalanced forces in your piping, causing displacements and possibly failures in the lines. It is difficult to accurately predict these forces due to the three dimensionality of the waterfront.Dynaflow Research Group is developing a line filling module for our surge analysis software package BOSfluids to realistically determine these forces. We are improving the accuracy of the predicted unbalanced forces using CFD analyses. The interaction between the waterfront and different geometrical aspects of piping such as bends, Tees and different equipment, like the orifices in the video, are analyzed. The results from these CFD analyses will be used to improve our understanding of surge behavior during line filling.
New Features BOSpulse 4.2 Dynaflow Research Group BV 2021-10-05 | BOSpulse is a comprehensive software solution for performing pulsation analyses of piping systems involving reciprocating equipment. It enables engineers to model both common and custom reciprocating equipment and the attached piping, to perform pulsation analyses, to check the results against the allowable pressure and shaking force amplitudes prescribed by the applicable API standards, and to assess the impact of the shaking forces on the structural response of the piping system. Check out these new features of BOSpulse latest version, BOSpulse 4.2
New Features BOSfluids 6.2 Dynaflow Research Group BV 2021-09-22 | BOSfluids is our powerful fluid dynamic simulation tool to perform surge analyses, simulate pump failures and analyze waterhammer events in an interactive and visual way. This video shows the highlights of the 2021 version 6.2. For more information and a free to download demo version visit www.bosfluids.com
Webinar - Hoe visualiseer ik de verspreiding van aerosolen in een gebouw? Dynaflow Research Group BV 2021-04-14 | Mochten er aan de hand van de webinar nog vragen overblijven dan is het mogelijk om ze naar het volgende e-mail adres te sturen:marketing@rvent.nlVoor meer informatie over VentiScan:www.ventiscan.nlVoor het opzetten van de CFD analyses wordt gebruik gemaakt van het commercieel beschikbare softwarepakket Helyx van onwikkelaar Engys: www.engys.com
This is DRG Dynaflow Research Group BV 2021-02-12 | An overview of Dynaflow Research Group. Who we are and what we do.Dynaflow Research Group is a firm which specializes in the advanced end of the engineering spectrum. Our work often requires a multi-disciplinary approach: encompassing the static and dynamic analysis of fluids and gases and of mechanical components. We believe that we are at our best when creative thinking and a practical approach are required to tackle a problem.
Ventiscan Comparison Dynaflow Research Group BV 2020-11-17 | This year we launched our new service to support schools and other buildings in The Netherlands to optimise their room ventilation against Corona spreading.By offering our knowledge and expertise in the field of flow and particle analysis we hope to make a contribution to fighting this terrible virus. We will offer this service Pro Bono to selective parties as our in-kind contribution to society in these difficult times.More information on our service can be found at: www.VentiScan.com******************************************************************************Dit jaar hebben wij nieuwe service ontwikkeld om scholen en andere gebouwen in Nederland te ondersteunen bij het optimaliseren van hun ventilatie tegen de verspreiding van het Coronavirus.Door onze kennis en kunde op het gebied van stromings- en deeltjestransport aan te bieden, hopen wij een bijdrage te kunnen leveren aan de bestrijding van dit verschrikkelijke virus. Deze dienst zullen wij Pro Bono aanbieden aan selectieve partijen als onze in natura bijdrage aan de samenleving in deze moeilijke tijden.Meer informatie over onze service is te vinden op: www.VentiScan.com
BOSfluids: EPANET file interface Dynaflow Research Group BV 2020-11-17 | While BOSfluids can be used perfectly fine to build piping models from scratch, this is not really a feasible approach when an analysis involves a (very) large piping system. BOSfluids has therefore provided support for importing piping models from various file formats such as Piping Component Files. In the latest version of BOSfluids, version 6.1, this support is extended to EPANET models that are often available for large (public) piping networks. To read the full article: dynaflow.com/news/bosfluids-epanet-file-interface
BOSfluids: Coupled fluid structure interaction Dynaflow Research Group BV 2020-11-03 | BOSfluids, our versatile transient flow analysis tool, was already very effective at predicting flow-induced forces acting on piping systems. Now it enables you to perform coupled fluid-structure analyses directly from within BOSfluids by means of a new structural solver interface. This reduces the scope for errors and reduces the overall analysis and modeling time significantly. To read the full article: dynaflow.com/news/coupled-fluid-structure-analyses-with-bosfluids
Quasi steady state analyses Dynaflow Research Group BV 2020-10-28 | BOSfluids has always provided support for both steady state and transient analyses. The latter typically involve simulations of flow conditions that change over a relatively short time frame. Simulations of slowly-evolving flow conditions over long time periods are often not feasible due to excessive computation times. The upcoming BOSfluids 6.1 release will therefore offer support for quasi steady state analyses that are aimed specifically at simulations of slowly-evolving flow conditions. This makes BOfluids an even more versatile tool for pipe flow analyses.
Improved Tube Rupture Analysis with BOSfluids Dynaflow Research Group BV 2020-10-15 | The tube rupture model provided by BOSfluids, the transient pipe flow analysis tool by DRG, has been significantly improved and extended. It can therefore more accurately predict the pressure rise due to rupture of a tube in a heat exchanger. The improved model can account for phase transitions due to flashing and the critical flow conditions that often occur as a result. The improved model also accounts for the friction losses within the tubes.
Breakthrough BOSfluids Transient Solver Performance Dynaflow Research Group BV 2020-10-09 | BOSfluids is our powerful fluid dynamic simulation tool to perform surge analyses, simulate pump failures and analyze waterhammer events in an interactive and visual way. Version 6.1 marks a major update of BOSfluids. It brings many new features and significant improvements to existing features. By using some novel and state-of-the-art numerical methods the transient flow solver in our surge and general flow analysis software package BOSfluids has just been made up to two orders of magnitude faster.
BOSfluids: Exclude and include parts without effort Dynaflow Research Group BV 2020-09-29 | BOSfluids is our powerful fluid dynamic simulation tool to perform surge analyses, simulate pump failures and analyze waterhammer events in an interactive and visual way. Version 6.1 marks a major update of BOSfluids. It brings many new features and significant improvements to existing features.BOSfluids 6.1 provides a much improved and much more efficient way to indicate which elements are to be taken into account in flow analyses and structural analyses.www.bosfluids.com
Introducing BOSfluids 6.1 Dynaflow Research Group BV 2020-07-28 | BOSfluids is our powerful fluid dynamic simulation tool to perform surge analyses, simulate pump failures and analyze waterhammer events in an interactive and visual way. Version 6.1 marks a major update of BOSfluids. It brings many new features and significant improvements to existing features.www.bosfluids.com
Hindered settling velocity of sedimentation of particles using CFD-DEM Dynaflow Research Group BV 2020-07-24 | The sedimentation process of suspended particles in a fluid can be found in many fields, e.g. the deposition of natural sediments or the many solid-liquid separation phenomena in chemical, mining and food engineering. In many applications in these fields the hindered settling process plays an important role. In this process, the particles fall at a constant velocity due to the balance of buoyancy, gravity and drag force. The local interactions of the particles and the wake effects play also an important role; the settling velocity decreases when the local particle concentration increases. In this animation the particle-fluid flow a CFD-DEM solver is used to simulate the hindered settling velocity of solids in water with different solid concentration in a squared column. The particles are randomly distributed using volume concentrations of 10%, 20%, 30% and 40%. When the solids start to fall and reach the floor, water is pushed upwards increasing the drag forces and reducing the fall velocities of the solids that are still falling. In the animation ten percent of the simulated particles are visualized. The result of these simulations is compared to Richardson’s empirical formula. However, the CFD-DEM solver can be used to simulate more complex pipe systems in which particle-fluid flow plays an important role.
#BOSfluids upcoming release: Implementation of an integrated coupling to a mechanical solver Dynaflow Research Group BV 2020-03-27 | In the upcoming release of BOSfluids, an integrated coupling to a mechanical solver is implemented in the program. You will be able to add structures, perform a surge analysis and check the mechanical response to the resulting forces entirely in BOSfluids. This video showcases the pressure waves and pipe deflection resulting from a valve closure event.For more information visit: www.bosfluids.com
DRG releases BOSpulse 4.0 Dynaflow Research Group BV 2019-12-17 | We proudly present the newest release of BOSpulse (4.0). This major release features the ability to implement structures and perform dynamic stress analyses with the pulsation analysis results using an integrated coupling to ANSYS. Now you can perform an entire API pulsation analysis using BOSpulse. Additional features in this release are: Improvements in graphics and data visualization and additional element types to improve modelling accuracy. For more information visit: www.bospulse.com
Determination of frictional losses of vent pipes in empty systems Dynaflow Research Group BV 2019-11-29 | Vent pipes are sometimes placed at the end of large empty systems in order to expell all air during start up. These vents have been observed to deform in some cases. It was hypothesized that this deformations had occurred due to the temperature increase of quickly expelled gas from the system. To test this hypothesis a generic CFD analysis was performed using a compressible two phase flow solver in OpenFOAM. A maximum pressure drop over the vent pipe of 0.8 bar was found. Assuming the pressure loss is entirely converted to heat, the gas temperature is increased by about 80 °C. This temperature increase exceeds the maximum design temperature in most cases, which could possibly lead to deformations for certain pipe materials.#Deluge #sprinkler #ventpipe #compressible #two-phase-flow #pressurewave #CFD #OpenFOAM #Dynaflow #Helyx #Temperaturerise #friction #deformation
Expected flow regime in discharge line when draining liquid from storagetank at atmospheric pressure Dynaflow Research Group BV 2019-11-08 | #simulationfriday Dynaflow Knowledge Series: flow regime in discharge line when draining liquid from storage tank at atmospheric pressure.Liquid-gas flow can cause vibrations and significant unbalanced loads in piping systems. When large storage tanks are fully drained, there is a point in time when a liquid-gas mixture enters the piping system. This possibly leads to flow regimes, such as slug flow, causing vibrations or high unbalanced loads.A CFD analysis was performed on the draining of a large storage tank at atmospheric pressure to analyse if these flow regimes can be expected. The results are shown in the video. At the moment the liquid height in the tank reaches the top of the connected discharge line some instabilities arise in the flow and minor slugging is expected. However, shortly after, the flow becomes stratisfied and no slugging was observed.
#SimulationFriday : Dynaflow Knowledge Series: Surge Vessel during Emergency Shut Down Dynaflow Research Group BV 2019-11-01 | Emergency shut downs require short closure times of the emergency shut down valves. This results in high pressure waves though the system as a large fluid column is stopped in an instant. Surge vessels can be installed near the ESD valve to mitigate some of these pressure waves. The fluid has additional time to slow down while the surge vessel fills up. In this video the filling of a surge vessel during emergency shut down is analyzed using pressure data received from BOSfluids and imposing this as a boundary condition in a CFD analysis.
#SimulationFriday Dynaflow Knowledge Series: Orifice Dynaflow Research Group BV 2019-10-25 | #SimulationFriday Dynaflow Knowledge Series: Cavitation down stream of restricting orifice for increasing pressure drop
#SimulationFriday Pressure response due to deluge system filling Dynaflow Research Group BV 2019-10-18 | #SimulationFriday Pressure response due to deluge system filling
BOSfluids importer Dynaflow Research Group BV 2019-09-27 | Importing large number of PCF files in improved BOSfluids importer benchmarkwww.bosfluids.comdynaflow.com/bosfluids-6-0-released
Record setting number 8492 #isometrical drawings in single #waterhammer model. Dynaflow Research Group BV 2019-09-20 | ...
Introduction to BOSview Dynaflow Research Group BV 2019-09-16 | BOSview is a free viewer for piping system file formats. It can be used as a viewer for:BOSview files (*.bvz);CAESAR II Neutral files (*.cii);Piping Component Files (*.pcf);For more information or to download, go to https://bosview.com.
#simulationfriday Large cavity formation and collapse during temporary pump slowdown Dynaflow Research Group BV 2019-09-13 | Large cavity formation and collapse during temporary pump slowdown #bosfluids #waterhammer #surge #pipingdynaflow.com/bosfluids-6-0-releasedwww.bosfluids.comengineeringtrainer.com/courses/DRG-F3101
BOSfluids 6.0 released Dynaflow Research Group BV 2019-09-06 | BOSfluids is our powerful fluid dynamic simulation tool used to prevent pipe failures caused by waterhammer and surge pressure events. Visit our website for more information regarding:- new features- purchase Bosfluids- available BOSfluids training coursesdynaflow.com/bosfluids-6-0-releasedwww.bosfluids.com
Introducing BOSfluids version 5.5 Dynaflow Research Group BV 2018-08-30 | BOSfluids is an interactive computer simulation package that models steady state and transient flow in liquid or gas carrying piping systems. The software package analyses fluid transients and relates this information to the forces, pressures, flow rates and velocities experienced in the piping system with engineering accuracy. Common problems in the Oil&Gas, Power and Water industry are addressed such as Jetty loading, tube rupture, fire water systems, cool water systems, oil transportation lines, in plant piping surges due to valve closure and pump trips. The software uses a clear and detailed 3D interface designed for strong interaction with typical Oil&Gas software packages such as pipe stress software.LATEST FEATURES: For an overview please consult bit.ly/2MAqhGpWEBINAR: September 5th-4 pm CEST.: Curious to see what new features our BOSfluids version 5.5 software has? Register here bit.ly/2MwQTbr
High frequency mechanical breathing modes modelled with PTC Creo simulate Dynaflow Research Group BV 2018-01-26 | ...
#SimulationFriday Adapted the two phase Euler flow solver Dynaflow Research Group BV 2017-12-08 | #SimulationFriday An adaptation of the two phase Euler flow solver of OpenFOAM to include scalar transport to model the mixing of an injected concentration in a vessel
Scalar diffusion induced by a Rushton impeller using CFD Dynaflow Research Group BV 2017-10-27 | CFD has been applied to monitor scalar transport to study the diffusion based study single and multiphase flows induced by a Rushton impeller. OpenFOAM and rotating meshes were used (AMI) to resolve the full 3D flow field and post-processing using Q and iso contours to track down the scalar transport.
CFD study of mixing performance of a Rushton impeller Dynaflow Research Group BV 2017-10-12 | OpenFOAM and HELYX have been applied to study single and multiphase flows induced by a Rushton impeller. Rotating meshes were used (AMI) to resolve the full 3D flow field and post-processing using Q and vorticity iso contours.
Industry Quality CFD results in a week Dynaflow Research Group BV 2017-09-22 | Simulation for determination of power requirements and mixing efficiency for mixing vessels goo.gl/i5S9wtBenefits of using CFD:*Quick, low-cost method for design iterations*Quick, low-cost method to determine cause of performance issues*Analysis possibilities where measurements are not possible
Fluid displacement applications Dynaflow Research Group BV 2017-08-11 | Studying different non-newtonian fluids for fluid displacement applications #CFD #SimulationFriday #HELYX #Multiphase
BOSfluids pressure rise due to cavity collapse after pump trip Dynaflow Research Group BV 2017-07-07 | ...
Multiphase flow CFD for fluid displacement in petrochemical applications Dynaflow Research Group BV 2017-05-05 | Fresh water displacement using salt water (higher density) injection.
