# v2f model turn on??

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 February 16, 2005, 18:57 v2f model turn on?? #1 Rain Guest   Posts: n/a How to turn on V2F TURBULENCE MODEL in fluent?

 February 16, 2005, 20:32 Re: v2f model turn on?? #2 zxaar Guest   Posts: n/a i think (allow-v2f-model) on TUI shall work

 February 16, 2005, 22:49 Re: v2f model turn on?? #3 Rain Guest   Posts: n/a Thanks. But the solution is not converging. The z velocity and f is not converging. How can I control them. Rain

 February 16, 2005, 22:55 Re: v2f model turn on?? #4 zxaar Guest   Posts: n/a i never used this model ..so sorry i can't comment on this issue

 February 17, 2005, 02:20 Re: v2f model turn on?? #5 yuvaraj saravanan Guest   Posts: n/a Hi, Try running the solution initially using some ke model for flow field. define a custom field function(cff) v2 as (2/3)k where k is turbulent kinetic energy. Then turn to v2f model. Then patch a value for the velocity variance scale in all fluid zones using the cff that u created before. Make sure velocity variance scale and elliptic relaxation function has the same discretization scheme as k and epsilon. let me know whether it works Yuvaraj

 February 17, 2005, 02:29 Re: v2f model turn on?? #6 Rain Guest   Posts: n/a I am getting the solution converged but then i have TURBULENT VISCOSITY RATIO limited of 1.00+e5 in xxxxxx cells is coming. But then my case is high reynold number(15000) so should i just increase the limit or I should use the ADAPT/gradient/turbulent viscosity ratio to refine all the cells out of the limit(1+e5).

 February 17, 2005, 07:58 Re: v2f model turn on?? #7 Jason Guest   Posts: n/a I would refine... TVR of 1E05 is the same as quick drying cement. Jason

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