Numerical simulation of flow separation over a 2D blunt body

摘要

The flow separation over a two-dimensional blunt body with roundness nose is numerically simulated. The effects of attack angle are analyzed. The grids around blunt body are numerically created using hyperbolic grid generation procedure. The Reynolds-averaged Navier-Stokes equations are solved with a time-accurate explicit procedure. Results for the turbulent flow around the blunt body at the angles of attack 0deg and +-10deg show the details of the flowfield structure, including the unsteadiness caused by the voxtex burst and the resulting fluctuating airloads exerted on the body.