unsteady heat transfer rate calaculation


Problem Specification

A fluid flows through a solid region where a transient heat source is present. The cp value of fluid depends on temperature.

How to plot the amount of heat absorbed by the fluid over time in cfd post.



  • DrAmineDrAmine GermanyForum Coordinator
    edited November 2018
    That would be theat released by
    The solid region in contact with fluid. Say heatflux at contact interface on the fluid side.
  • Alexandre11Alexandre11 Member
    edited November 2018

    Thanks for the reply.

    Sorry. I could not understand your answer. Can you explain it a bit more?


  • DrAmineDrAmine GermanyForum Coordinator
    edited November 2018

    In Fluent or CFX you have your Fluid passing though a solid region. Imagine now both are meshed and part of your model. CFX or Fluent will build up a sort of an interface or similar between both. At that interface you can look for the heat flux transferred between the solid body and fluid region. Look after the variable Heat Flux in Post which you can integrate along the Wall/Interface/Contact.


    For more information you need to post some more details here so that we can be more specific here.

  • kkanadekkanade Forum Coordinator
    edited November 2018

    A quick check in Fluent would be Postprocessing - Reports - Fluxes - Heat transfer rate

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