Thanks for replying,  

This is what i have done.   x_face  , y_face , z_face are the faces perpendicular to the x,y,z directions which relates to both fluid (liquid element) and solid (tank element) interface surfaces.  This command snippet worked for a small scale model with a acceleration.In small scale model it didn't leak and expected type of sloshing can be seen.   But when i applied this to the real model with real dimensions and also with the Earthquake related real acceleration vs time data, it leaked as the above images. Can you help please?