Adding a term to energy equation

Hgholami · February 16, 2019, 10:53

dear all
I want to add a viscous heating term to energy equation as below

AnyBody can help me? Thanks

it is non-newtonian fluid that n is fluid index, m is consis of fluid, cp thermal capacity,k conductivity and ,p is density. All is constant.

mAlletto · February 19, 2019, 02:30

Maybe this pages can give you a hint of how to solve your problem:

adding viscous dissipation to openfoam solver

https://cfd.direct/openfoam/energy-equation/

https://cpp.openfoam.org/v4/rhoCentr...8C_source.html

Yamini K · February 27, 2019, 00:15

Hey!
Since everything is a constant term, you just have to add these parameters in the createFields.H file and compile it. Add the value of each file in constant folder and run the simulation.

Hgholami · February 27, 2019, 23:48

Dear Yamini
It is not all constant. I have I2/2 that is variable

olivierG · March 5, 2019, 05:09

Hello,
take a look at https://www.openfoam.com/releases/op...nd-physics.php
You just have to add in fvOptions a "viscousDissipation" dict.

regards,
Olivier

February 16, 2019, 10:53	need adding a viscous heating term to energy equation	#1
Hgholami Senior Member Hojatollah Gholami Join Date: Jan 2019 Posts: 171 Rep Power: 7	dear all I want to add a viscous heating term to energy equation as below AnyBody can help me? Thanks it is non-newtonian fluid that n is fluid index, m is consis of fluid, cp thermal capacity,k conductivity and ,p is density. All is constant. Last edited by Hgholami; February 18, 2019 at 09:27.

February 19, 2019, 02:30		#2
mAlletto Senior Member Michael Alletto Join Date: Jun 2018 Location: Bremen Posts: 615 Rep Power: 15	Maybe this pages can give you a hint of how to solve your problem: adding viscous dissipation to openfoam solver https://cfd.direct/openfoam/energy-equation/ https://cpp.openfoam.org/v4/rhoCentr...8C_source.html Hgholami likes this.

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February 27, 2019, 00:15		#3
Yamini K New Member Tanvi Join Date: Jan 2019 Posts: 3 Rep Power: 7	Hey! Since everything is a constant term, you just have to add these parameters in the createFields.H file and compile it. Add the value of each file in constant folder and run the simulation.

February 27, 2019, 23:48		#4
Hgholami Senior Member Hojatollah Gholami Join Date: Jan 2019 Posts: 171 Rep Power: 7	Dear Yamini It is not all constant. I have I2/2 that is variable

March 5, 2019, 05:09		#5
olivierG Senior Member Olivier Join Date: Jun 2009 Location: France, grenoble Posts: 272 Rep Power: 17	Hello, take a look at https://www.openfoam.com/releases/op...nd-physics.php You just have to add in fvOptions a "viscousDissipation" dict. regards, Olivier