A numerical analysis of separated turbulent flows behind a bluff body using a modified random vortex method is presented. In order to apply the conventional random vortex method for the separated flow around more complicated body shapes such as axisymmetric bluff bodies, the panel method was employed instead of the traditional conformal mapping method.
The process of oscillating flow development behind a wedge is obtained and shown in detail. Reattachment point and distributions of mean velocities, turbulent properties were calculated. The process of flow development showed to be a good data for predicting Strouhal number. Calculated position of the reattachment point and the distribution of mean velocities showed a good agreement with available experimental results.
There remains some problems to be solved in estimating turbulent properties and pressure distribution.
