Hi,

Does anybody have an idea how sensitive the turbulence models in Fluent are to the turbulence values at the inlet? Is it just used as a boundary condition to initialise the solution? I am currently validating an experiment about sails where the oncoming flow has a fine scale turbulence. I am using k-w sst.

Cheers,

Ziya

As all turbulence models based on k-e model, sst-kw is not very sensitive to inlet values. However, pay attention that Fluent is using user inlet values for turbulence quantities (whichever way you decide to specify them) into calculations!!

In your particular case, I think is better to use a combination of turbulence intensity + turb. lenght scale or turb. viscosity ratio.

Best wishes, Razvan