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Inlet Velocity Boundry condition

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Old   June 29, 2010, 23:50
Default Inlet Velocity Boundry condition
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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"???
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Old   June 30, 2010, 02:26
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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
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Old   June 30, 2010, 03:10
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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
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