back flow level set function flux, what is it? -- CFD Online Discussion Forums

October 31, 2016, 22:08	back flow level set function flux, what is it?	#1
Ash Kot Member Ash Kotwal Join Date: Jul 2016 Location: North Dakota, USA Posts: 92 Blog Entries: 1 Rep Power: 10	While, I was trying to setup VOF model with 'Couple Set + VOF' parameter options, I came across this '' Back flow level set function flux '' option, in boundary conditions for 'pressure-outlet' condition. It was under multiphase sub-option, and version of software is 17.0. And my inlet conditions are, 'mass-flow-rate'. Since I'm setting up pipe flow the turbulence conditions are, 'turbulence intensity and hydraulic diameter'. The values are 30% and inlet diameter of geometry. So I just wanna know, what's this, 'back flow level set function flux'? I tried to understand by reading math journal papers, but there is no difference in aerodynamic turbulent flow over sphere and knowledge over my head!! thanks, regards.

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