pUCoupledFoam applied to industrial cases?

cryabroad · January 17, 2022, 21:22

Hello Foamers,

I wonder if anyone have used the pUCoupledFoam solver from foam-extend. First I did the tutorials and found that indeed it allows you to get convergence much faster (in terms of the total number of iterations, each iteration costs more resources, as expected). Then I applied it to the Askervein Hill case, which many consider to be a benchmark test case for flow over complex terrains. However, the case diverges really fast. I tried several boundary conditions and numerical schemes, but no success.

Also, I tried "coupled" solver in Fluent, and by default it activates the "pseudo transient" temporal scheme, which also helps to get faster convergence and higher stability for steady-state cases. Could this be the key?

Thanks in advance.

Ruiyan

cryabroad · January 19, 2022, 04:30

Anyone tried pUCoupledFoam, especially on industrial cases?

January 17, 2022, 21:22	pUCoupledFoam applied to industrial cases?	#1
cryabroad Senior Member Ruiyan Chen Join Date: Jul 2016 Location: Hangzhou, China Posts: 162 Rep Power: 10	Hello Foamers, I wonder if anyone have used the pUCoupledFoam solver from foam-extend. First I did the tutorials and found that indeed it allows you to get convergence much faster (in terms of the total number of iterations, each iteration costs more resources, as expected). Then I applied it to the Askervein Hill case, which many consider to be a benchmark test case for flow over complex terrains. However, the case diverges really fast. I tried several boundary conditions and numerical schemes, but no success. Also, I tried "coupled" solver in Fluent, and by default it activates the "pseudo transient" temporal scheme, which also helps to get faster convergence and higher stability for steady-state cases. Could this be the key? Thanks in advance. Ruiyan

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January 19, 2022, 04:30		#2
cryabroad Senior Member Ruiyan Chen Join Date: Jul 2016 Location: Hangzhou, China Posts: 162 Rep Power: 10	Anyone tried pUCoupledFoam, especially on industrial cases?