unsteady heat transfer rate calaculation

  • Last Post 23 November 2018
Alexandre11 posted this 22 November 2018


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.


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abenhadj posted this 22 November 2018

That would be theat released by The solid region in contact with fluid. Say heatflux at contact interface on the fluid side.

Best regards, Amine

Alexandre11 posted this 22 November 2018

Thanks for the reply.

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


abenhadj posted this 22 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.

Best regards, Amine

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kkanade posted this 23 November 2018

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