Uploaded December 2019 | Updated September 2026, 2 weeks ago
We've gone through the elementary incompressible potential flows (uniform flow, source/sink flow, and vortex flow) in previous videos. Now we can build up a more complex flow step by step, using different variations of sources: single source, two sources, many sources, continuous curve of infinite sources, etc.
The final equation in this video shows the velocity potential induced at an arbitrary point P in the flowfield due to a uniform flow and N source panels. The next video will go through how we can use this equation to solve for the source panel strengths that will result in a physical flow around our airfoil.
===== RELEVANT VIDEOS =====
► Panel Methods Playlist
youtube.com/watch?v=bWjo3N9COz4&list=PLxT-itJ3HGuUDVMuWKBxyoY8Dm9O9qstP
► Source/Sink Flow
youtube.com/watch?v=eLDI_jV3yo0
► Uniform Flow
youtube.com/watch?v=jCTTDclJZEk
► Uniform + Source/Sink Flow
youtube.com/watch?v=zIvpN9f9dAA
===== NOTES =====
- Notes will be included here.
===== ERRORS =====
- Let me know if you see any errors and I will include them 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
amzn.to/3emVuXU
► Foundations of Aerodynamics, Kuethe and Chow
amzn.to/2yMg1Vi
► Theory of Wing Sections, Abbott and Doenhoff
amzn.to/2wvZyUt
We've gone through the elementary incompressible potential flows (uniform flow, source/sink flow, and vortex flow) in previous videos. Now we can build up a more complex flow step by step, using different variations of sources: single source, two sources, many sources, continuous curve of infinite sources, etc.
The final equation in this video shows the velocity potential induced at an arbitrary point P in the flowfield due to a uniform flow and N source panels. The next video will go through how we can use this equation to solve for the source panel strengths that will result in a physical flow around our airfoil.
===== RELEVANT VIDEOS =====
► Panel Methods Playlist
youtube.com/watch?v=bWjo3N9COz4&list=PLxT-itJ3HGuUDVMuWKBxyoY8Dm9O9qstP
► Source/Sink Flow
youtube.com/watch?v=eLDI_jV3yo0
► Uniform Flow
youtube.com/watch?v=jCTTDclJZEk
► Uniform + Source/Sink Flow
youtube.com/watch?v=zIvpN9f9dAA
===== NOTES =====
- Notes will be included here.
===== ERRORS =====
- Let me know if you see any errors and I will include them 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
amzn.to/3emVuXU
► Foundations of Aerodynamics, Kuethe and Chow
amzn.to/2yMg1Vi
► Theory of Wing Sections, Abbott and Doenhoff
amzn.to/2wvZyUt
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Second of All Comment
The first of all comment (that I made in the video) was that the angle of attack actually changes based off of where you define the leading edge to be. The comment I forget to say in the video is that the chord length also changes based on the LE location. For the minimum x value LE, the chord line is longer than the minimum radius of curvature LE. Explained: Airfoil Chord [Airplanes]](https://i.ytimg.com/vi/Eh5W61iswSY/mqdefault.jpg)

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RELATED VIDEOS
→ Detailed Afterburner Video
https://goo.gl/nt9KBp
REFERENCES
► Afterburners in The Aerothermodynamics of Aircraft Gas Turbine Engines, Zukoski
► Mechanics and Thermodynamics of Propulsion, Hill and Peterson
► Aerothermodynamics of Gas Turbine and Rocket Propulsion, Oates
► Aircraft Propulsion, Farokhi
► Aerospace Propulsion Systems, Ward
► Fundamentals of Jet Propulsion with Applications, Flack
THUMBNAIL PHOTO CREDIT
By United States Navy, Mass Communications Specialist 2nd Class Michael D. Cole [Public domain], via Wikimedia Commons In a Nutshell: Afterburners](https://i.ytimg.com/vi/EuITkZPd5c4/mqdefault.jpg)


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The angle of attack (AoA) is one of the most important parameters when studying how planes fly. By definition, it is the angle between some reference line of the plane (in our case the chord line of the wing) and the relative wind. The AoA will be vital when talking about lift curves and how wings generate lift.
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