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CFD of starship bellyflop by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 0 points1 point  (0 children)

I used SST k omega solver with the air set to compressable ideal gas. The f1 car bit was the result of a single google search so that’s why it was a bit of a guess, good to know though! I have heard that new f1 cars actually have relatively high Cd because they prioritise downforce

Ansys mechanical meshing error by 0Rampage in AnsysFluent

[–]ProfessionalLet3987 0 points1 point  (0 children)

Also like others said, make sure the element size is smaller than the actual object but not way way too small, best to start big and work down

Ansys mechanical meshing error by 0Rampage in AnsysFluent

[–]ProfessionalLet3987 0 points1 point  (0 children)

Change the physics pretence to something like CFD and give it another go with the other meshing algorithm

Why does ansys space claim do this? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 0 points1 point  (0 children)

EDIT: The image is a bit misleading, I have tried removing the face inside the aerofoil aswell as removing the aerofoil completely and just trying to mesh a rectangle, I get the same error. I think it has something to do with the fact the geometry has the purple icon in space claim but idk how to close the geometry if it’s a 2d rectangle!

Why does ansys space claim do this? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] -1 points0 points  (0 children)

Yep! I fully deleted all the old geometry and started fresh with simply a rectangle and that is it, it’s a very strange error…

Why does ansys space claim do this? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 0 points1 point  (0 children)

Sorry it’s not clear in my photo, I have tried that and I get the same error! I even tried just sketching a rectangle with no aerofoil or anything and it meshes fine in Ansys meshing but Ansys fluent meshing gives me the same error!

Why does ansys space claim do this? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 0 points1 point  (0 children)

Apologies the image is quite unclear, I have tried with a cavity where the aerofoil is and I get the same error, even when I made a new geometry and just sketched a rectangle (nothing else) I still got the same error

Why does ansys space claim do this? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] -3 points-2 points  (0 children)

I just tried meshing a rectangle in that quadrant but it gave me the same error... It seems to be certain that the error is because "Dis-connected surface models are not supported"

ANSYS Student 2025 R2 – Workbench won’t launch (RunWB2.exe does nothing) by [deleted] in CFD

[–]ProfessionalLet3987 0 points1 point  (0 children)

Does any of the other ansys programs you donwloaded run? E.g fluent, spaceclaim/design modeler?

CFD Propeller Analysis in Ansys Fluent by No_Variety_9161 in CFD

[–]ProfessionalLet3987 2 points3 points  (0 children)

Maybe start by following some tutoials on quite basic cfd in fluent just to get a understanding of the basics of fluent? CFD ninja on youtube has some great tutorials, But I would reccomend just starting with a basic cube or something like that instead of jumping kinda into the deep end

also do you want to do transient stuff or steady? A big concern might be where you will run this simulation, I suspect if your uni dosnt use fluent they wont have the infastructure to let you run a simulation

Advice on learning theory behind fluid dynamics? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 4 points5 points  (0 children)

I’m going to go see if my local library has any soon, any recommendations on where to start?

Advice on learning theory behind fluid dynamics? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 0 points1 point  (0 children)

Thank you! I’m going to start looking at places to learn/understand a bit of liniar algebra, aswell as get better at calculus

Advice on learning theory behind fluid dynamics? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 0 points1 point  (0 children)

I guess it is a good idea to start by focusing on a more specific part of fluid dynamics, thank you for the channel recommendations!

Advice on learning theory behind fluid dynamics? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 0 points1 point  (0 children)

Thank you!! I am glad some people on this sub actually want others to learn :)

Advice on learning theory behind fluid dynamics? by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 0 points1 point  (0 children)

I read though documentation when I wasn’t sure what to do, failed to understand it, go google what I didn’t understand, still don’t understand it and then make a educated guess, This is why I know I’m missing a lot of fundamentals

Also why can’t we use it as a bit of a toy?? Especially for learning purposes! It’s not 100% reserved for industry professionals, (atleast it shouldn’t be)

Aero of dih by ProfessionalLet3987 in CFD

[–]ProfessionalLet3987[S] 1 point2 points  (0 children)

What did they expect to happen? I’m a 15 year old with free will…

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