Closed MingLocke closed 4 months ago
Hi @MingLocke,
the problem here is that the simulation gets unstable and blows up: in the first GIF about 4 seconds in, it gets fuzzy on the wing edge and then quickly propagates downward. Afterwards, the entire simulation box will be filled with NaNs and you won't get any usable data out.
You're at Reynolds number 400k. Please check that you've enabled the SUBGRID
extension; but even with that it may get unstable at this large Re and low resolution.
Kind regards, Moritz
Dear Dr. Moritz Lehmann,
I hope this message finds you well. I am currently working on simulating the deformation of an underwater wing using FluidX3D. The deformation shapes for the wing within the time range of 0-0.3 seconds are stored in a series of wing_N.stl files (N=0,1,2,...). My objective is to read the new STL file at each time step, calculate and export the position of the force vector on the wing surface, along with the magnitudes of the Fx, Fy, and Fz components, to a CSV file. Below is my setup file:
The issue I am facing is that the force vectors exported to the CSV file seem to remain at the initial positions and do not update to the deformed locations. To provide a better understanding, I have attached two files:
Attachment 1: A GIF file illustrating the simulation images. Attachment 2: A vector plot generated from the exported CSV file, showcasing the force vectors.
I would greatly appreciate it if you could review my configuration settings in light of the provided attachments and advise on any potential issues. Thank you very much for your valuable assistance.
Best regards