Subsonic Flow Separation Control over NACA0015 Airfoil Using Electromagnetic Fields by Numerical Modeling

Using Lorentz forces under effects of electro-magnetic fields for flow control is a suitable procedure. Lorentz forces may be added as a source term in the governing fluid flow equations. For this phenomenon, the numerical modeling of subsonic flow with the Mach number of 0.2 for turbulent flow regime using a finite-volume TVD scheme with implicit time marching for solving the two-dimensional compressible Navier Stokes flows and the Baldwin-Lomax turbulence model around aerofoils are investigated to control undesirable effects of flow separation. By using Lorentz forces, it was shown that the separation was delayed or avoided over NACA0015 aerofoil and hydrodynamic performance was enhanced. Employing flow control using the Lorentz force, the lift coefficient was increased and the drag coefficient was not changed, considerably. Hence, the stall angle was increased.