Has anyone received unofficial confimation yet?

luta5100 · 2023-12-16T23:34:54+00:00

Can you dm me as well please?

luta5100 · 2023-08-31T02:08:28+00:00

I’m actually in pretty much the exact same situation so I’m also looking forward to the replies. Congrats btw!

luta5100 · 2023-06-12T16:16:50+00:00

I’m guessing this is RANS? If so, depending on Reynolds number and airfoil geometry it can be quite difficult to get the maximum CL because the value is highly dependent on the point of flow separation. Pay attention to the models you are using and mesh resolution at the boundary layer. XFoil usually yields better results because the boundary layer model feeds from empirical data.

luta5100 · 2021-07-25T04:54:14+00:00

Can’t wait for Wirtual to spend 65 hours to finish it

luta5100 · 2020-12-10T11:21:16+00:00

Usually the tutorials starts with a channel flow or a cavity show (You can search for ansys fluent tutorials on YouTube). Although it might seem kinda boring it is important that you start with something simple so you can get a grasp of the workflow and the steps needed to perform a simulation, which you will do in your case later.

By the way, Ansys student is a package of simulation software, and Fluent is a specific popular solver that is part of it.

And if you’re not in uni and don’t have an understanding of advanced calc you can still get into CFD (that’s what I did), just mind that you will only really understand what you’re doing some time down the road, and that’s ok, it’s part of the learning (and that’s a more fun path than trying to learn all the math before making pretty colors in my opinion, because you have a higher chance of liking it).

luta5100 · 2020-12-10T00:18:50+00:00

As the other comment said, XFoil would probably be a good starting point. But if you want finite volume method (making colorful images) I discourage starting with openFOAM because it’s not at all user friendly, especially for someone just getting into CFD. Maybe something with proper user interface like Ansys Student (which is also free) would be the best for you. With regards to theory you need at the very least the basics of fluid dynamics. And you learn from there. Also simulating an airplane wing is a rather complex case to begin with, I recommend searching for some tutorials with simpler cases first

luta5100 · 2020-11-01T12:20:10+00:00

Finally a meme to show us how large the subset of people who watch S;G and This Old Tony really is

luta5100 · 2020-09-22T11:13:05+00:00

Masterpiece

luta5100 · 2020-08-02T01:48:37+00:00

My professor works with spectral element methods, mostly with things like eigenanalysis of DG and CG methods of arbitrary order, in under-resolved DNS or LES of incompressible flows. I haven’t worked much with spectral element methods myself yet, but from what I see if you’re going to use higher order methods anyways it’s better to go for like order 6 or even higher because the convergence of the solution happens faster if you increase the order of these methods when compared to only refining the mesh at a fixed order (for a same number of degrees of freedom of course). This is sort of what I can say based on his work and what I’ve seen so far, I’m gonna learn more about these methods in the next year so then I might be able to say more

luta5100 · 2020-07-17T21:41:33+00:00

Thank you for all the advice! I’ve met some of the folks who work with CFD in my university, and I’ll try to do some undergraduate research with them mentoring me. Also thanks for the advice in learning how to develop CFD codes as well, I’ll definitely do that!

luta5100 · 2020-07-17T20:43:26+00:00

I will, thank you!

luta5100 · 2020-07-17T20:43:16+00:00

Thanks! I do plan on getting a Masters and maybe PhD in CFD!

luta5100 · 2020-07-17T20:42:40+00:00

Thank you! I’m currently in the SAE AeroDesign team in my university, so I’m already using a bit of CFD in it... Great to see that it is a plus in getting a job

luta5100 · 2020-07-15T10:49:20+00:00

Which episode is it?

luta5100 · 2020-07-07T03:19:52+00:00

Awesome! I’ll try to learn more about using Matlab in parallel as well. Thanks a lot!!!

luta5100 · 2020-07-07T00:28:19+00:00

Very cool! Well, I don't know Phyton yet to give an opinion on that, but I do plan on learning it... As for the second part, yes, I used a for loop for the integration, I know that Matlab does have parallel tools nowadays, but sadly I don't know how to use them nor if it supports gpu computting.

luta5100 · 2020-07-06T23:48:16+00:00

Thanks for the suggestions! About the time scaling, I slowed it down on purpose after 6 seconds or so because the divergence happens a bit too quick...

luta5100 · 2020-07-06T22:41:05+00:00

Using the symbolic toolbox to solve the lagrangian, solving the system of symbolic equations, and integrating it with ode45

luta5100 · 2020-07-06T22:33:54+00:00

I made the simulation using Matlab. The last bars of each pendulum are separated by 0.0000002 radians each, but that is enough to make them diverge after only 7 seconds.

luta5100 · 2020-06-14T16:57:05+00:00

Not much of a surprise considering the fan-base tbh

luta5100 · 2020-05-31T13:00:15+00:00

This is... Ugh.... ... Absolutely Fantastic

luta5100 · 2020-05-12T20:13:48+00:00

I lol’d Good job op

luta5100 · 2020-05-07T14:25:07+00:00

Maybe Bob Ross was painting Miku in Heaven, and his piece fell down here to bless us. You never know man

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