Fluids

Fluids

Decreasing heat flux value

    • azizi0407
      Subscriber
      Hi,nnI?m modeling a forced convection around cylinder in porous media. As I increased the Reynolds number, the heat flux decreased. Shouldn?t it increase? What is the problem here? How to Ansys Fluent compute heat flux?.Thanks for any advice in advance.n
    • Rob
      Ansys Employee
      Yes, and no. Has the flow separated, and what is the boundary condition on the cylinder?n
    • azizi0407
      Subscriber
      Hi Robnnthe conditions no slip condition and heated. The flow does not separate as it?s model using Hele-Shaw cell. So it will be like a Potential flow around a cylinder.nnthanksn
    • Rob
      Ansys Employee
      Can you post some images of velocity vectors & temperature contours?nSpecifically what thermal boundary did you use on the wall?
    • azizi0407
      Subscriber
      This is the temperature contour image at Re=2100 and Pr=7. It’s look weird as the flow didn’t past the heated cylinder.n
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