How to find the Nusselt number along a wall?

Sedullo · July 15, 2020, 08:42

I am running a case of Natural convection heat transfer between a hot vertical plate and the atmosphere.

I am using buoyantBoussinesqPimpleFoam, it is a laminar case, so the Grashof number is laminar and the turbulenceProperties are set to "laminar", so there is no RAS turbulence model.

I would like to find the value of the Nusselt Number along the wall, but in the previous discussion I did not find anything that could fit for my case.

My programming skills are quite limited so I kindly ask you to give me a sort of step by step explanation if you have some ideas.

Thanks for the help

geth03 · July 15, 2020, 10:17

you can calculate your nusselt number with paraview,
you need to choose the calculator and then type in
the equation.

Sedullo · July 15, 2020, 10:19

Thanks for the reply, could you tell me please what should I write in the calculator?

Sedullo · July 15, 2020, 13:15

Anyone has any idea for solving this problem?

July 15, 2020, 08:42	How to find the Nusselt number along a wall?	#1
Sedullo Member Alex Join Date: May 2019 Posts: 36 Rep Power: 7	I am running a case of Natural convection heat transfer between a hot vertical plate and the atmosphere. I am using buoyantBoussinesqPimpleFoam, it is a laminar case, so the Grashof number is laminar and the turbulenceProperties are set to "laminar", so there is no RAS turbulence model. I would like to find the value of the Nusselt Number along the wall, but in the previous discussion I did not find anything that could fit for my case. My programming skills are quite limited so I kindly ask you to give me a sort of step by step explanation if you have some ideas. Thanks for the help

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July 15, 2020, 10:17		#2
geth03 Senior Member Join Date: Dec 2019 Location: Cologne, Germany Posts: 369 Rep Power: 8	you can calculate your nusselt number with paraview, you need to choose the calculator and then type in the equation.

July 15, 2020, 10:19		#3
Sedullo Member Alex Join Date: May 2019 Posts: 36 Rep Power: 7	Thanks for the reply, could you tell me please what should I write in the calculator?

July 15, 2020, 13:15		#4
Sedullo Member Alex Join Date: May 2019 Posts: 36 Rep Power: 7	Anyone has any idea for solving this problem?