How to implement solar ray tracing model in Ansys fluent?

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  • Last Post 04 December 2018
szhang posted this 30 November 2018

So I would like to simulate the solar radiation on a simple box. I created a fluid domain (smaller box) inside another fluid domain (larger box). I would like to know the solar radiation flux on the top surface of the small box. The solar vector is (0,0,1), so that only the top surface receives solar radiation. After several attempts, the solar flux remained at zero and I could not figure out what went wrong. Does anyone know what exactly is happening? Is my boundary conditions incorrect or something else is causing this? 

 

I also attached the case file, data file and geometry file in this thread.

 

Any help is greatly appreciated.

 

Attached Files

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peteroznewman posted this 03 December 2018

Relevant post #1

Relevant post #2

Relevant post #3

Relevant post #4

kkanade posted this 04 December 2018

 Thanks to Peter!

These posts provide valuable information. 

If this solves your issue, please mark this as 'Is Solution' to help others on forum. 

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