[hrsptl]

Hello Experts,

My Problem is that " How to Input Fluctuating Inlet Boundary Condition (Time Dependent Velocity/Inflow Turbulence/Transient Boundary Condition) In ANSYS-CFX??"

Thank You In Advance.

[Antanas]

Originally Posted by hrsptl

Hello Experts,

My Problem is that " How to Input Fluctuating Inlet Boundary Condition (Time Dependent Velocity/Inflow Turbulence/Transient Boundary Condition) In ANSYS-CFX??"

Thank You In Advance.

Via CEL or Interpolation Function

[hrsptl]

Originally Posted by Antanas

Via CEL or Interpolation Function

Thanks For Previous Reply...

I tried to found out the Equation for that but can't get appropriate Equation for Time Dependent Velocity, if you have please post here or give any reference book/material...

[Antanas]

Originally Posted by hrsptl

Thanks For Previous Reply...

I tried to found out the Equation for that but can't get appropriate Equation for Time Dependent Velocity, if you have please post here or give any reference book/material...

Equation for time dependent velocity? What do you mean? It seems that you don't understand what you want.

PS Equation for time dependent velocity: v = f(t).

[hrsptl]

Originally Posted by Antanas

Equation for time dependent velocity? What do you mean? It seems that you don't understand what you want.

PS Equation for time dependent velocity: v = f(t).

For making CEL, I am finding Function f(t)...

[Lance]

You can specify turbulence intensity at the inlet, will that work for you? Turbulence intensity is defined as u'/U, so e.g. 5% would be u' = 0.05*U. As far as I know there is no way of specifying time-varying fluctuations at the inlet unless you have measurement data and include it through interpolation functions.

CFX does not have any of the fancy turbulence synthesizers that Fluent has.