Lattice Boltzmann methods for high Reynolds number flows

Osama Maklad · July 2, 2015, 09:28

Hello everybody,

I am working in a problem with air jet velocity=160 m/s and Reynolds number range is (50000:120000).

Is Lattice Boltzmann methods suitable for simulation of this flow in my case?

Thank you,

Best regards,
Osama

GM_XIII · July 21, 2015, 13:53

I am not an expert of LBM but as long as I know the least expensive turbulence model implemented is a LES so expect to have a very very fine mesh and very very small time steps in order to capture the spatial scales required. You would need a powerful machine to achieve this.

Osama Maklad · July 21, 2015, 18:40

Quote:

Originally Posted by GM_XIII

I am not an expert of LBM but as long as I know the least expensive turbulence model implemented is a LES so expect to have a very very fine mesh and very very small time steps in order to capture the spatial scales required. You would need a powerful machine to achieve this.

Thank you very much GM_XIII for your reply.

July 2, 2015, 09:28	Lattice Boltzmann methods for high Reynolds number flows	#1
Osama Maklad New Member Osama Maklad Join Date: Jul 2015 Location: UK Posts: 2 Rep Power: 0	Hello everybody, I am working in a problem with air jet velocity=160 m/s and Reynolds number range is (50000:120000). Is Lattice Boltzmann methods suitable for simulation of this flow in my case? Thank you, Best regards, Osama

July 21, 2015, 13:53		#2
GM_XIII Member David Join Date: Aug 2012 Posts: 48 Rep Power: 13	I am not an expert of LBM but as long as I know the least expensive turbulence model implemented is a LES so expect to have a very very fine mesh and very very small time steps in order to capture the spatial scales required. You would need a powerful machine to achieve this. Osama Maklad likes this.

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