Turbulent flow in Fluid-Structural-Interaction (FSI) simulation

[taegoon]

Hello, i'm simulating the FSI simulation of the interaction between object (structural) and fluent (air). 

I want to realize the turbulent flow for the inlet in the FSI simulation. I mean, the input wind in the simulation should applies the fluctuating pressure on the object, since the turbulent flow has varying direction and magnitude. I utilized a lot of viscous model in FLUENT such as, k-w and k-e, However, in transient simulation it seems laminar flow is applied from the inlet 

 

how can i make the fluctuating wind(just like natural wind) which has varying magnituda and direction in FSI simulation? 

[Rob]

You'd need LES or similar to see any effect of the turbulence, but that's likely to be masked by the inherent transient effects of gusting. Have a think about your definitions and exactly what you're trying to determine.