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Old   February 16, 2005, 18:57
Default v2f model turn on??
  #1
Rain
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How to turn on V2F TURBULENCE MODEL in fluent?
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Old   February 16, 2005, 20:32
Default Re: v2f model turn on??
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zxaar
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i think

(allow-v2f-model)

on TUI shall work
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Old   February 16, 2005, 22:49
Default Re: v2f model turn on??
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Rain
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Thanks. But the solution is not converging. The z velocity and f is not converging. How can I control them.

Rain
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Old   February 16, 2005, 22:55
Default Re: v2f model turn on??
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zxaar
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i never used this model ..so sorry i can't comment on this issue
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Old   February 17, 2005, 02:20
Default Re: v2f model turn on??
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yuvaraj saravanan
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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
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Old   February 17, 2005, 02:29
Default Re: v2f model turn on??
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Rain
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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).
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Old   February 17, 2005, 07:58
Default Re: v2f model turn on??
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Jason
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I would refine... TVR of 1E05 is the same as quick drying cement.

Jason
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