How to set the inlet depth of the fluid in Fluid Scenario Creation?

I am working on a project "Hydraulic Jump". I used a bounding box and gave the velocity inlet. The fluid is flowing throughout the opening. I want fluid to enter at a particular depth. How to do that?  

Edu ​​​​​​​3DEXPERIENCE ​​​​​​​SIMULIA ​​​​​​​Fluid Scenario Creation ​​​​​​​