i,m looking for a suitable model for turbolance in junction of rectangular open channel.and i dont know how i can do modeling of free surface in open channels. please help me. thanks

set the free surface as a wall and then set that wall with a specified shear stress of 0 Pa in the x,y and z directions.

RSM turbulence model will work.

DAE

thanks for your attention to me.and in dispaly windows how can i zoom in/out,rotate model,moveing that or other option? with best regards.

zoom in: draw a square from top left to bottom right zoom out: draw a square bottom right to top left

rotate: drag using left mouse button

DAE