|May 13, 2010, 03:36||
BC Profile with Turbulent Intensity
Join Date: Feb 2010
Posts: 33Rep Power: 7
can i use turbulent intensity (%) as a profile boundary condition?
when i look at the "standard variable names" in CFX helper i only
see that i can specify k (turbulence kinetic energy) as a profile bc parameter.
if i use k in the profile BC, than CFX ask me for epsilon (turbulent dissipation rate). i dont have epsilon though....
thank you very much!
|May 13, 2010, 07:10||
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 11,284Rep Power: 88
Turbulence intensity % just defines the turbulence intensity (k) as a function of flow velocity. It does not define the second variable required to specify the turbulence inlet condition. You will need to specify an epsilon, turbulence length scale, turbulence viscosity scale or some other independent turbulence parameter to define the second turbulence variable.
|Thread||Thread Starter||Forum||Replies||Last Post|
|How to calculate Turbulent Intensity?||prem||FLUENT||8||March 21, 2012 14:40|
|Turbulent intensity for pressure Outlet Boundary condition||Mohsin||FLUENT||1||April 30, 2010 10:36|
|Turbulent intensity||swe704||Main CFD Forum||0||November 13, 2009 04:42|
|setting value of turbulent intensity and turbulent viscosity ratio in wind tunnel||nuimlabib||Main CFD Forum||0||August 4, 2009 00:05|
|Turbulent Intensity good or bad for a jet||Christian||Main CFD Forum||0||November 19, 2003 06:47|