Fluids

Fluids

how to create density stratified medium in ansys fluent

    • Karthik K R
      Subscriber

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

    • DrAmine
      Ansys Employee

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

    • Karthik K R
      Subscriber

      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
      Ansys Employee

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

      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
      Subscriber
      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
      Ansys Employee

      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. 

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