Aerodynamic Shape Optimization - The Adjoint CFD Method

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Aerodynamic Shape Optimization - The Adjoint CFD Method

Рет қаралды 15,051

AirShaper

Күн бұрын

Пікірлер: 41

@benykla 3 жыл бұрын

Always clear & inspiring. Thanks Wouter!

@AirShaper 3 жыл бұрын

Thanks Halfina! I'm glad it was clear :) I have to admit this one really wasn't easy (still today it's a very complex topic for me as well :) )

@eduardodavalos791 3 жыл бұрын

Excellent video Wouter! Thanks for your hard work explaining in an easy way the fascinating world of aerodynamics!

@AirShaper 3 жыл бұрын

Thank you very much Eduard! I you liked this one, perhaps our video on Machine Learning for Aerodynamics might also interest you?

@eduardodavalos791 3 жыл бұрын

@@AirShaper I will take a look at it!

@AirShaper 3 жыл бұрын

@@eduardodavalos791 Great, looking forward to your thoughts on it!

@grekiki 2 жыл бұрын

That's awesome, didn't expect to see "back propagation" in CFD :)

@AirShaper 2 жыл бұрын

Thanks Gregor! If you want to learn more, we did a paper together with the developers of this code: airshaper.com/research/from-scanned-cad-to-an-optimized-car

@tchezao0248 3 жыл бұрын

Awesome Video, my friend. Didn't know about this method and now I am even more fascinated.

@AirShaper 3 жыл бұрын

Thanks a lot!! It would work on classic Porsches as well :)

@nasaciabolo 3 жыл бұрын

This was fantastic. I feel I have a stronger understanding already of the nature of airflow simulations using nodes or point vectors to simulate physical forces. I was really impressed by how the software is able to separately analyze pressure and friction. I think some really interesting software would be somewhat preventative in my mind, analyzing where specific points could create critical disturbances in airflow and potential hazardous events. Thank you for sharing this video in a clear and concise manner, and I fully intend to watch additional videos that you or your company has posted regarding aerodynamics and airflow.

@AirShaper 3 жыл бұрын

Dear Samuel, thank you very much for the kind words! I'm hoping our video on how CFD simulations work in general will complement the one you just saw: kzfaq.info/get/bejne/mt-ZhainycmYd5s.html Hope you like it!

@marcnobel3938 3 жыл бұрын

Great! I will try that out when my next project is finished.

@AirShaper 3 жыл бұрын

What's the next project about?

@marcnobel3938 3 жыл бұрын

@@AirShaper A whole body kit which should be a TÜV/Streetlegal version of a real Rallye Version. Just turned down enough to make it road useable. This includes a massive (in relation to the car) rear spoiler.

@AirShaper 3 жыл бұрын

@@marcnobel3938 Ok that's right at the heart of what we like & do :) Looking forward to get in touch as soon as you get to the aero part!

@marcnobel3938 3 жыл бұрын

@@AirShaper I guess in roughly 3-4 weeks I have modified all scans to the needed standards. Some parts are already in Geomagic to get them ready for SW. We are very excited to try out your analysis.

@AirShaper 3 жыл бұрын

@@marcnobel3938 Hi Marc, ah that's pretty soon then, nice! Keep in mind that in theory, there is no need to make the models watertight for AirShaper. But of course, gaps & holes that are large enough to impact aerodynamics should be closed. Feel free to reach out at wouter@airshaper.com to continue the discussion!

@tomaspedro1999 3 жыл бұрын

Very good insight!

@AirShaper 3 жыл бұрын

Thanks Tomàs!

@danielniels22 3 жыл бұрын

HAHAHA HOW LUCKY I AM 🤣 what a coincidence that today i have just had an assignment about optimization and you upload this haha thank youuuu 👍👍👍👍👍

@AirShaper 3 жыл бұрын

Good timing then 😎

@daryoushmehrtash7601 2 жыл бұрын

thanks, good explanation.

@AirShaper 2 жыл бұрын

Thank you, you're welcome

@351kostakis 2 жыл бұрын

Fantastic

@AirShaper 2 жыл бұрын

Thanks Chris!

@lontongstroong 2 ай бұрын

Can the algorithm do adjoint optimization on *transient* simulation?

@bitsurfer0101 Жыл бұрын

Can manufacturers apply design boxes in order to make a bicycle frame stiffer in one area versus another?

@AirShaper Жыл бұрын

This method is to optimize the aerodynamics, not the mechanical properties. For that, similar methods exist, like OptiStruct or Inspire.

@ejegbavworuemu2129 3 жыл бұрын

Wow I actually considered optimising shapes following a similar technique. I didn't know it was already implemented. Any ideas on how I can apply and say read more?

@AirShaper 3 жыл бұрын

I would recommend exploring the adjoint optimization libraries of SU2 and OpenFOAM. Not easy, but very powerful.

@ejegbavworuemu2129 3 жыл бұрын

OK then thank you

@ZachBZera 2 жыл бұрын

How do I learn how to do this? Because it sure as shit wasn't taught to me at one of the top mechanical engineering schools in the world lol

@AirShaper 2 жыл бұрын

One way is to dig into OpenFOAM (www.openfoam.com) and first learn how to run CFD simulations and then how to run adjoint shape optimizations. Definitely doable (even I can do it, which says a lot). The other option is to run such simulations via our platform, where we have automated literally everything, from 3D model to finished 3D morphed model. Just give me a shout at wouter@airshaper.com!

@watermenlon3617 Жыл бұрын

can this also be used for reducing noise when an object is subjected to airflow? trying to do shape optimization where the goal is noise reduction. Is this possible to work with?

@AirShaper Жыл бұрын

Yes, shape optimization can also be used to reduce noise! Any specific topic you're working on?

@watermenlon3617 Жыл бұрын

@@AirShaper currently working on an undergrad thesis for ducted turbofan blade noise reduction by adding trailing edge serrations. we'll be trying to optimize not the blades but the serrations attached on the turbofan blades for noise reduction

@AirShaper Жыл бұрын

@@watermenlon3617 sounds really cool!! The NTUA does have adjoint code including MRF for rotation, but they haven't made it public yet :)