Boundary conditions in Wave simulation Star CCM+

Dronzer · May 4, 2016, 13:38

Hi CFDians,
I have doubt regarding boundary conditions used in Star CCM+ for wave and forward speed simulations. Which boundary condition has to be used for Side walls,Top and bottom boundaries..? A velocity inlet or a slip wall..? and why..?
Of course in tutorials, they have used velocity inlets...

freeday · May 20, 2016, 08:31

Hi, Dronzer.
You can follow the numerical wave tank part in the tutorial of Marine resistance prediction: KCS Hull with Rudder.
Side: symmetry, top: velocity inlet; bottom: wall.

Shakhawat · August 31, 2023, 01:46

The reference you said to follow
I am following this tutorial and in the tutorial the BC are-
Inlet,Top,Bottom=inlet
outlet=pressure outlet
side,symmetry=symmetry plane.

My Question is how tank top can be inlet?
any physical explanation?

May 4, 2016, 13:38	Boundary conditions in Wave simulation Star CCM+	#1
Dronzer Member Join Date: Apr 2016 Posts: 53 Rep Power: 10	Hi CFDians, I have doubt regarding boundary conditions used in Star CCM+ for wave and forward speed simulations. Which boundary condition has to be used for Side walls,Top and bottom boundaries..? A velocity inlet or a slip wall..? and why..? Of course in tutorials, they have used velocity inlets...

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May 20, 2016, 08:31		#2
freeday New Member freeday Join Date: Aug 2010 Location: Indonesia Posts: 17 Rep Power: 16	Hi, Dronzer. You can follow the numerical wave tank part in the tutorial of Marine resistance prediction: KCS Hull with Rudder. Side: symmetry, top: velocity inlet; bottom: wall.

August 31, 2023, 01:46		#3
Shakhawat New Member Mohammad Shakhawat Khan Join Date: Aug 2023 Posts: 6 Rep Power: 3	The reference you said to follow I am following this tutorial and in the tutorial the BC are- Inlet,Top,Bottom=inlet outlet=pressure outlet side,symmetry=symmetry plane. My Question is how tank top can be inlet? any physical explanation?