Uploaded September 2017 | Updated September 2026, 2 weeks ago
Falling droplets of isopropyl are ignited using a lighter, and fall into a cup of water.
===== NOTES =====
- For the darker video, I was only using the overhead lights for the lighting, which is why you can see it flicker. It's annoying, but there's nothing I can do about it now.
- As I'm sure someone will complain about the music, there's always the option of turning off the sound and using your own music. I added music because it was sort of weird without any sound.
===== CAMERA & SETTINGS =====
Camera: Edgertronic SC1
Frame Rate: 1972.39 FPS
Horizontal: 720pixels
Vertical: 400pixels
ISO: 1600
Lens: Nikon 50mm 1.8D
===== MUSIC ATTRIBUTION =====
Antarctica by Audionautix is licensed under a Creative Commons Attribution license (creativecommons.org/licenses/by/4.0/)
Artist: audionautix.com
Falling droplets of isopropyl are ignited using a lighter, and fall into a cup of water.
===== NOTES =====
- For the darker video, I was only using the overhead lights for the lighting, which is why you can see it flicker. It's annoying, but there's nothing I can do about it now.
- As I'm sure someone will complain about the music, there's always the option of turning off the sound and using your own music. I added music because it was sort of weird without any sound.
===== CAMERA & SETTINGS =====
Camera: Edgertronic SC1
Frame Rate: 1972.39 FPS
Horizontal: 720pixels
Vertical: 400pixels
ISO: 1600
Lens: Nikon 50mm 1.8D
===== MUSIC ATTRIBUTION =====
Antarctica by Audionautix is licensed under a Creative Commons Attribution license (creativecommons.org/licenses/by/4.0/)
Artist: audionautix.com


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Create an exit push button for your MATLAB GUI using this code. When the exit button is pressed, the command window will be cleared, the variables that you specify will be removed from the workspace, and the figure (GUI window) will be deleted.
Explained: Make a GUI [MATLAB]
https://www.youtube.com/watch?v=42xLYuMIexg
Do download the .m and .fig files from this video, visit this page on my website.
http://www.joshtheengineer.com/2015/01/05/explained-matlab-gui-exit-button/ Explained: GUI Exit Button [MATLAB]](https://i.ytimg.com/vi/9Tli0Fiw7r4/mqdefault.jpg)
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This video explains how to bring line data in front of scatter data in an Excel plot. Plots with only scatter data can be brought to the front by moving them up or down in the Select Data Source window. However, its not as easy for mixed data.
Update 11/12/15 - Thanks to comments from Eric Almquist and Robert Patrick
1) I was not careful enough with resetting my secondary axis, and the vertical scale for the primary and secondary axes are actually different (exactly what I was warning you about, ironically).
2) An easier way to hide the secondary axis is to either simply click on the axis and delete it (Robert Patrick), or to click on the + sign (Chart Elements) at the top right of the plot, click on the right-arrow next to axes, and uncheck Secondary Vertical (Eric Almquist). Explained: Bring Data To Front In Chart [Excel]](https://i.ytimg.com/vi/9eVMuPIJh0k/mqdefault.jpg)
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A static text field can be used to provide information on how your code is running. In this video, I describe how to blink a message in a static text field in a MATLAB GUI.
How To Make a MATLAB GUI:
https://www.youtube.com/watch?v=42xLYuMIexg Explained: Blinking Static Text in GUI [MATLAB]](https://i.ytimg.com/vi/9f6GAIzZcZg/mqdefault.jpg)


![Explained: Static Discharge Wicks [Airplanes]
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We went through the derivations of the normal velocity geometric integral (Iij) and the tangential geometric integral (Jij). The Iij term is used in the expression to solve for the source panel strengths. The Jij term is used in the expression to solve for the velocity of the flow on each panel. In order to compute the flowfield around the airfoil (off the airfoil), we need to know the X and Y components of the velocity at arbitrary grid points (similar to a CFD solution).
In this video, we go through the derivation of the X and Y velocity geometric integrals (Mx(ij) and My(ij)). These will allow us to compute the flowfield pressure coefficients and the streamlines around the airfoil. Much of this derivation is exactly the same as the Iij derivation, so I will refer you to that video for those details.
RELEVANT VIDEOS
► Panel Methods Playlist
https://www.youtube.com/watch?v=bWjo3N9COz4&list=PLxT-itJ3HGuUDVMuWKBxyoY8Dm9O9qstP
► Panel Method Geometry
https://www.youtube.com/watch?v=kIqxbd937PI
► Building More Complex Flows
https://www.youtube.com/watch?v=EKzbwJvKcmw
► Flow Around an Airfoil
https://www.youtube.com/watch?v=cLdv1UfX1g8
► Normal Velocity Geometric Integral [I(ij)]
https://www.youtube.com/watch?v=76vPudNET6U
► Tangential Velocity Geometric Integral [J(ij)]
https://www.youtube.com/watch?v=JRHnOsueic8
NOTES
- Ill add notes here if I need to.
ERRORS
- If you see an error in the video, please let me know and I will include it here.
REFERENCES
Note: the links are Amazon affiliate links. If you do happen to want to buy the book and use the link below, it helps me out a little.
► Fundamentals of Aerodynamics, Anderson
https://amzn.to/3emVuXU
► Foundations of Aerodynamics, Kuethe and Chow
https://amzn.to/2yMg1Vi
► Theory of Wing Sections, Abbott and Doenhoff
https://amzn.to/2wvZyUt Streamline Geometric Integral SPM [Mx(pj) and My(pj)]](https://i.ytimg.com/vi/BnPZjGCatcg/mqdefault.jpg)
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This video explains how to load CSV files into MATLAB using textscan. Explained: Load CSV Data [MATLAB]](https://i.ytimg.com/vi/CMaxsZoQuE0/mqdefault.jpg)