free jet

January 4, 2006, 18:50

Hi, i want to simulate a steady free air jet with CFX 5.6. I defined the problem as axisymetric laminar and steady state. The Re is about 20.

But i have problems wiht the size of my domain.

The vortex in the flow is moving when I increase the domain more and more.

As outlet boundary condition i have average static pressure=0.

Does anybody know what the problem could be? Thanx

January 5, 2006, 06:01

Hi,

I don't know if this will help you, but on the CFX-Community web site there is this paper (FREE SURFACE FLOW MODELLING OF AN IMPINGING JET): http://www-waterloo.ansys.com/commun...3-030AB43CEEBB

January 4, 2006, 18:50	free jet	#1
ebbe Guest Posts: n/a	Hi, i want to simulate a steady free air jet with CFX 5.6. I defined the problem as axisymetric laminar and steady state. The Re is about 20. But i have problems wiht the size of my domain. The vortex in the flow is moving when I increase the domain more and more. As outlet boundary condition i have average static pressure=0. Does anybody know what the problem could be? Thanx

January 5, 2006, 06:01	Re: free jet	#2
Rui Guest Posts: n/a	Hi, I don't know if this will help you, but on the CFX-Community web site there is this paper (FREE SURFACE FLOW MODELLING OF AN IMPINGING JET): http://www-waterloo.ansys.com/commun...3-030AB43CEEBB

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