Oscillatory shock motion caused by transonic shock boundary-layer interaction

Abstract

rest of the equations in the system. The DMR method computes a separate sequence of optimal acceleration factors to be used for each component of the general solution vector. The acceleration scheme was applied to the system of time-dependent Euler equations of inviscid gasdynamics in conjunction with the finite-volume, Runge-Kutta, explicit, time-stepping algorithm. Using DMR without multigriding, between 30% and 10% of the total computational efforts were saved in the subsonic compressible flow calculations. The DMR method seems to be especially suitable for stiff systems of equations and can be applied to other systems of differential equations and other numerical algorithms.