Numerical Study of Magnetoaerodynamic Flow Around a Hemisphere

Abstract

Newly developed computational tools are used to compute hypersonic flow around a hemisphere cylinder that uses a magnet located within the body as a means of heat flux mitigation. These tools include an improved electrical conductivity model and a parallelized three-dimensional magnetohydrodynamic module that is loosely coupled to a three-dimensional fluid code. Several electrical conductivity models are explored for a range of magnetic field strengths. Results show the shock standoff distance increases when the magnetic field is applied, but the distance is highly dependent on the conductivity model selected. The increase in shock standoff distance reduces the gradients in the shock layer, thereby reducing the peak heat flux to the body. However, the total heat flux slightly increases due to additional heating to the aft section of the geometry.

Effect of Applied Magnetic Field on Shock Boundary Layer Interaction

“…In Recently, Bisek et al 10 investigated MHD hypersonic flow over a hemisphere-capped cylinder with improved electrical conductivity model. Dipolar type of magnetic field is generated by placing a magnet at the center of the body.…”