kepsilon turbulence model
In Fluent 5 I am performing analysis on a RAE2822 aerofoil  transonic turbulent case using the kepsilon model.
I know from experimental data under the conditions I am applying, that the flow transitions to turbulent at about 10% chord. As the model is set up currently the flow is turbulent (using a turbulent flow model) from the start, i.e. at the farfield. This is distorting the leading edge pressure results. Is there a way of making Fluent model this flow correctly i.e. only applying the kepsilon model after 10% chord (or at any position I choose)? Has anyone got any advice? Thanks 
HELP  SAME PROBLEM

Re: HELP  SAME PROBLEM
kepsilon cannot be expected to model transition if this is what you ask  you should at least try RNG.

Re: kepsilon turbulence model
if you really want to model an abrupt transition from one cell to the neighbour one just split your domain into two fluid zones and turn on "laminar zone" for the first. Then the the k and the epsilonequation are frozen inside this zone.

All times are GMT 4. The time now is 22:09. 