hii everbody, I want to know if cfx is true program for turbulance analysis of helicopter blades.it is mine graduate work and I wonder how much useful other programs such as fluent or star cd-cfd.have a nice days.

Hi,

It all comes down to what turbulence model you want to use. CFX comes with a good choice of models for this type of application, for instance the SST (shear stress transport model, a derivative of the k-omega turbulence model) is likely to be good for general analysis; and for more advanced analysis CFX also has a turbulence transition and DES (detached eddy simulation) models which could be useful depending on whether your blades have a turbulence transition or large seperations.

I am sure you will find StarCD and Fluent also have similar features, I am not familiar with them so cannot comment. Arrange a trial of the codes and go with the one which works best for you.

Glenn Horrocks

fluent 6.2 has somethign called virtual balde modelling ..they use it for helicoptors, you can have a look at that too.