time dependant accelerations
 

Hi I am working on a sloshing problem in a tank + vehicle. There is a cylindric domain bounded by walls from all four sides and inside consisting of air and liquid. The tank is supposed to move respecting the vehicle move (acceleration (ax ay az) variable in time). How do I impose time dependant accelerations' fields to change in the operating conditions panel via udf or scheme file. Which define macro should I use to define my udf ? Can you send me any such udf? Thanks