Explained: Oblique Shock Relations Derivation

[@蔡政廷-f9z]

Hi Josh ! I was thinking about the Oblique Shock of the rocket nozzle yesterday (overexpanded/underexpanded). Then, you give me the derivation for this today, I am so lucky!!! Thank you XD.

[@JoshTheEngineer]

My pleasure! I made this video in preparation for my discussion on overexpanded flow that I'll be doing in the next couple of weeks hopefully.

[@benlucke7763]

Thanks so much Josh! I have my compressible flow final next Monday and you're helping me understand the material so much better. Just a quick question: was this course a part of your undergraduate curriculum?

[@JoshTheEngineer]

Thanks Ben! Glad I could help. Yes, we had an undergraduate compressible flow class.

[@benlucke7763]

@@JoshTheEngineer Thanks for everything! Will spread the word about your channel to my friends.

[@JoshTheEngineer]

No problem! Thanks for spreading the word.

[@guruadithya9040]

Great video! Thanks Josh

[@JoshTheEngineer]

You're welcome!

[@nellvincervantes6233]

Where can I find the complete derivation of the equations at 16:34 sir?

[@JoshTheEngineer]

I'm guessing you're talking about the normal shock relations? Here's my video on those (from the video description): kzbin.info/www/bejne/poOanoqsebx4gLs

[@nellvincervantes6233]

Ok thanks sir. One more question. In oblique shock, prandtl relation is also a*^2 = (u1)(u2) ?

[@SoumilSahu]

I never understood why the tangential component of velocity stays the same across an oblique shock. It almost seems obvious now, thanks!

[@JoshTheEngineer]

You're welcome! I'm glad this helped!

[@xtina3237]

Hi! Great video!! What about Method of Characteristic for the oblique shock?

[@JoshTheEngineer]

Thanks! I'll be going through a full derivation and application of the Method of Characteristics in a future series for sure.

[@xtina3237]

Wow!! That would be awesome😎.

[@pabel4283]

hello jhos,, it would be nice if you put subtitles in english for people who do not master the language well. Excellent video

[@JoshTheEngineer]

That's a good suggestion, thank you! I don't have much extra time on top of making the videos so this is tough for me to do. Also, the auto-subtitles that KZbin can do are pretty bad, and would probably make it more confusing.