moving block in a domanin

Ankit Somani

Hi I am encountering a problem while solving a case in which a car is moving on the ground. To simplify it, lets consider a 2-D box moving in a domain. I am using the dynamic meshes technique (dynamic layering) to move the car and have written a UDF for the motion. Now the problem iI am facing is that the side edges are not having the velocity of the top surface of the box (car). Thus what I currently have is like a solidification problem for the top surface and a melting for the bottom with 0 velocities at the side walls. To solve this tried to give those walls a velocity by BC's panel as well as UDF but I am unsuccessfull. I have also tried the remeshing technique alone but its not working for me. Kindly let me know if you have solution for this above issue

Thanks, Ankit