Abstract:

This paper studies the control of the circulation around a circular cylinder with multi slot blowing, using the method of Navier Stokes equation simulation. Results show that, for single slot blowing, the slot location affects the aerodynamic characteristics of the cylinder greatly, the maximum lift coefficient of the cylinder is increased and the energy expense of blowing is greatly reduced with multi slot blowing.

Key words: circular cylinder, circulation cont rol, multi-slot blowing, N-S equat ion simulation