Learning Forum

[Karthik K R]

 how to create a domain of density stratified water in ansys fluent using open channel method

[DrAmine]

Moving the thread into the Fluid Dynamics? Can you elaborate more on your concern?

[Karthik K R]

I want to simulate  movement of an object under water (sea), using  multi-phase VOF method and open channel initialization. so i want to incorporate  density stratification like in the actual sea

Thanks..

[DrAmine]

Yes you can do that with VOF and Open-Channel Flow but I do not understand the density stratification: Do you mean the density stratification Air/Water or the Density change of water due to temperature/pressure/salinity/depth..?

 

[Karthik K R]

The 2nd one,Density change due temperature.. and how can i implement the the temperature difference in open channel..
Thanks..

[DrAmine]

If you define the density of water as temperature dependent then you will obtain a density stratification for the water. How to setup an open channel case can be checkedin Raef''s Tutorial : 

[Karthik K R]

I know that density can be defined as a function of temperature. But how can i introduce that temperature difference to the water channel in my simulation

Thanks

[Rob]

You mean you want to change the temperature with depth? You'll also need to set the inlet, and there are a few threads on here explaining the DEFINE_PROFILE UDF macro.