-
Notifications
You must be signed in to change notification settings - Fork 278
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Wierdly behaving 3D objects / Meshes #184
Comments
Loads OK for me - you probably need a larger simulation? Try 14000u instead of 4000u I ran it like this from WSL:-
using my branch from here: https://github.com/gitcnd/FluidX3D/tree/inline_things What are the "some quick calculations on the characteristics" you're trying to work out? For context - I'm the author of the free Fusion360 "Airfoil Tools" add-in - which might also be able to help. |
Hi @MGRAFF2006, I'm sorry that the first thing you see is something not working. Let's get to the bottom of it. Thanks for already providing the reproducer! I need some more information: What hardware are you running this on? Maybe it is an issue with the particular drivers. Running this exact reproducer on my system (tested on 3 OpenCL devices: Arc A750, UHD 630 and i7-8700K), the setup looks fine and I can't observe the artifacting. The mesh looks also fine. To place the model in the center, use this: Mesh* cat = read_stl(get_exe_path()+"../stl/cat.stl");
cat->rotate(float3x3(float3(0, 0, 1), radians(-90.0f))); // rotate -90 degrees around z-axis
const float scale = 0.8f*fmin(fmin(lbm_N.x/cat->get_bounding_box_size().x, lbm_N.y/cat->get_bounding_box_size().y), lbm_N.z/cat->get_bounding_box_size().z); // scale parts
cat->scale(scale);
const float3 offset = lbm.center()-cat->get_bounding_box_center();
cat->translate(offset);
cat->set_center(cat->get_bounding_box_center()); // set center of meshes to their bounding box center
lbm.voxelize_mesh_on_device(cat); Kind regards, |
I am pretty much a noob at fluid dynamics, but need to do some quick calculations on the characteristics of some boats for digital prototyping.
After some poking around I started to get a hang of FluidX3D and decided instead of just changing values, reading the docs and understanding the setup.cpp i would try to create my version of one of the scenarios.
In this case i took the f1 car simulation and tried to get one of our Dummy Models in. Which didn't really ended up working:
Here is a picture of the original 3D Model in Autodesk Fusion:
I know it is probably not recommended having models with multiple non connected parts, but this is the version i have at the moment, also tried other variants (different models in different simulations to try to debug it myself) which I unfortunately don't have anymore.
But a resume of my tests could be, that many of the models i tested were having weird shapes like that, and some would change their shapes while the simulation is running even though i set them as Solid.
Really don't know what is wrong / what i should try anymore. Thanks for any Help / Hint in advance
Here you can find the .stl file and my setup.cpp:
issue.zip
The text was updated successfully, but these errors were encountered: