Heat Transfer in OpenFoam

hityo · July 13, 2021, 11:00

Hello,

I want to learn Heat Transfer Simulation in OpenFoam. So what is the advice and from where should i start?

plus I'm not so strong in Thermodynamic

piu58 · July 13, 2021, 12:34

I assume that you want to know the heat transfer form some kind of boundary layer.

I recommend simulating only the fluid stream. From this you get the local thickness of the Prandtl layer at the boundary. From this you may calculate the Nernst layer which is connected to the local heat transfer rate.

You may compere your results with the ones which the Nußelt number give. And you will find how hard is is to get the thin Prandl layer at regions with high stream velocity.

AshwaniAssam · July 14, 2021, 04:09

https://www.openfoam.com/documentati...andard-solvers

Start with the heat transfer solver which suits your need. You can start with the tutorials pertaining to that solver.

July 13, 2021, 11:00	Heat Transfer in OpenFoam	#1
hityo New Member Join Date: Sep 2017 Posts: 16 Rep Power: 8	Hello, I want to learn Heat Transfer Simulation in OpenFoam. So what is the advice and from where should i start? plus I'm not so strong in Thermodynamic

July 13, 2021, 12:34		#2
piu58 Senior Member Uwe Pilz Join Date: Feb 2017 Location: Leipzig, Germany Posts: 744 Rep Power: 15	I assume that you want to know the heat transfer form some kind of boundary layer. I recommend simulating only the fluid stream. From this you get the local thickness of the Prandtl layer at the boundary. From this you may calculate the Nernst layer which is connected to the local heat transfer rate. You may compere your results with the ones which the Nußelt number give. And you will find how hard is is to get the thin Prandl layer at regions with high stream velocity. hityo likes this. __________________ Uwe Pilz -- Die der Hauptbewegung überlagerte Schwankungsbewegung ist in ihren Einzelheiten so hoffnungslos kompliziert, daß ihre theoretische Berechnung aussichtslos erscheint. (Hermann Schlichting, 1950)

July 14, 2021, 04:09		#3
AshwaniAssam Senior Member Ashwani Join Date: Sep 2013 Location: Hyderabad Posts: 154 Rep Power: 12	https://www.openfoam.com/documentati...andard-solvers Start with the heat transfer solver which suits your need. You can start with the tutorials pertaining to that solver. hityo likes this.

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