CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   Inlet Velocity Boundry condition (

rohangulavani June 29, 2010 23:50

Inlet Velocity Boundry condition
Hello everybody,
I am doing one turbulent flow simulation in fluent. But I could not understand how to decide value of K and epsilon, or "intensity and length scale", or "viscosty ratio"???:confused::confused::confused:

mamad60 June 30, 2010 02:26

IF you know Turbulent intensity at Inlet you can choose intensity and hydraulic diameter .it's the best choise
else leave the default values unchanged

bob12 June 30, 2010 03:10

for idraulic diameter you consider this equation

De = 4 A / P

where A is area and P is perimeter; in effect if you have a cylinder the hydraulic diameter is equal to diameter of cylinder

All times are GMT -4. The time now is 11:57.