Unsteady simulation grid velocity
Unsteady simulation grid velocity
(OP)
Hi all!
I am doing a 2D unsteady CFD simulation for an oscillating airfoil on a moving grid. I have a structured grid and I know the grid locations at all time instants.
But, I am not able to figure out ""how to calculate the grid velocity for any cell?
Also, how do I use this to "implement Geometric Conservation Law"? I couldn't find any description about grid speed, maybe its too simple, but any help will be appreciated.
Thanks,
I am doing a 2D unsteady CFD simulation for an oscillating airfoil on a moving grid. I have a structured grid and I know the grid locations at all time instants.
But, I am not able to figure out ""how to calculate the grid velocity for any cell?
Also, how do I use this to "implement Geometric Conservation Law"? I couldn't find any description about grid speed, maybe its too simple, but any help will be appreciated.
Thanks,





RE: Unsteady simulation grid velocity
RE: Unsteady simulation grid velocity
Thanks again,
RE: Unsteady simulation grid velocity
You may want to try and contact some of the authors, and ask them directly (I have had success in the past). It helps if you are an NPARC user, but they will still talk to you if not. Look on the web page for "tech support" contacts.
You don't mention what code you are using, is it a commercial code, and if so, can you request tech support from them? If you are using a "home-built" code, then I would suggest trying to get a copy of NPARC/Wind via the website; it's basically free for US citizens, scholars, and companies. You get the source code (mostly written in Fortran) and can thus delve in and find the methodology they use.