💦 Shock Waves, Expansion Fans & Supersonic Flow - Dr. Chris Combs | Podcast #88

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Dr. Combs is the Dee Howard Endowed Assistant Professor in Aerodynamics in the UTSA Department of Mechanical Engineering. Prior to starting at UTSA, Dr. Combs worked as a Research Assistant Professor at The University of Tennessee Space Institute. His primary area of research interest is in the development and application of non-intrusive diagnostic techniques for compressible flows and he also has extensive experience in investigations of hypersonic boundary layer and SWBLI flow physics.
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TIME STAMPS
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0:00 : Intro
2:48 : Mach7 Test Facilities
7:39 : Laser-Based Measurement Techniques
11:57 : Schlieren Method
14:49 : Expansion Wave vs. Shockwave
20:21 : Shockwave - BoundaryLayer Interaction
24:09 : Aeromaterials at Hypersonic Speed
27:29 : The Definition of the Mach Number
33:33 : Theoretical Limit for the Mach Number
35:34 : CFD Software for Aerothermodynamics
38:47 : Ablation Material Research
41:17 : Fascination from Chris
43:13 : Scramjets vs. Ramjets
46:01 : Resources
47:17 : The Future of Hypersonic Flight
Podcast Recorded: October, 5th 2021 - Subscriber Release Count: 21,059.

Опубликовано:

24 июл 2024

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Комментарии : 10

@JousefM Год назад

👉 Science Academy: courses.jousefmurad.com/ 🌎 Simcenter Engineering: go.sw.siemens.com/QeBWrR7w 🎬 Siemens Software RU-vid Playlist: ru-vid.complaylists

@atakan716 11 месяцев назад

very informative talk, thank you so much! compressible flow is always exciting

@itetecnun Год назад

Really great episode. Very interesting topics. I really enjoyed the explanation between shockwaves and expansion waves, I would to read any vibliographic resource you may find on it. Congrats for the great work!

@JousefM Год назад

Thanks a lot for the feedback 🙂

@waldoanddenisestakes639 8 месяцев назад

Your Mach 7 wind tunnel reminds me of a design I saw 30 years ago built by Dr. Greg Winkelmen. It was a long tube that a rocket fired down to compress the air on the leeward side of a scored diaphragm. A small model is placed in the tube and because of the compressed air in the tube builds up pressure, the excessive air pressure ruptures the diaphragm and hypersonic air is created to pass over the model. Does yours work his way?

@waldoanddenisestakes639 8 месяцев назад

Sorry Dr. The ramjet on the underside of the X-15 flown by Pete Knight on that day in 1967 was loaded with sensors and never intended to fire up. It was a simple mock-up developed to use the X-15 as a practical, mechanical wind tunnel. Most authors write that the ramjet was a runner but it was not. I know this because I knew Pete.

@zapfanzapfan Год назад

Interesting with a student run hyper sonic facility.

@dustyWayneJr Год назад

This is EXCELLENT!!! Thanks for getting deep into this subject. Imagine how this applies to impact-phase comets that have atomized their chemical-elements (H/O/C/N) and smash into planets at Mach > 30?! 🖖🏾🤔♻

@JousefM Год назад

Thanks for your nice comment mate! 🙂

@waldoanddenisestakes639 8 месяцев назад

Dr. Combs, I am half complete with a rocket car built to touch Mach 2. It is powered by a Thiokol XLR -99 rocket engine converted to run on methanol and LOX. It was originally used in the X-15. I also have already built a 1,000 mph, rocket racer. Called Sonic Wind. I also designed a hypersonic aircraft and engine using a new type of combustion technology. Would you like to see it? Look me up. Waldo