ProjectPhysX
commented
9 months ago Hi @mohdafeefbadri,
welcome here! Yes you can make the road surface a moving boundary. Two steps to do this: enable the MOVING_BOUNDARIES extension by uncommenting the linked line, and in the main_setup() function, set the boundary flag for the bottom cells if(z==0u) lbm.flags[n] = TYPE_S; and make the velocity in this bottom layer non-zero: if(z==0u) lbm.u.y[n] = lbm_u;
See the F1 car sample setup and FluidX3D Documentation for details. Note that there might be some instabilities depending on simulation parameters, originating from where the wheels touch the road.
Kind regards, Moritz
Hello,
I am a newbie to FluidX3D and LBM.
Is it possible to make the ground BC for an automobile aerodynamics problem (STL file on the ground) to a moving wall BC? That is. moving wall BC for the box face (bottom face of the box) where the STL object/car model rests.
Best