NUMERICAL-SIMULATION OF REACTIVE FLOW ON THE IBM ES/3090 VECTOR MULTIPROCESSOR

Prohibiting knock damage in internal combustion engines presents severe restrictions for engineers. Laboratory experiments are expensive or even impossible; nevertheless, numerical attempts that employ supercomputers have been rarely undertaken. The numerical approach described in this paper combines a recent shock-capturing finite-volume scheme for the compressible Navier Stokes equations, with semi-implicit treatment of the chemical source terms. An algorithm is described and validated by experiment that is optimally adapted to vector and parallel computers. The algorithm has been implemented on the IBM Enterprise System/3090(TM) (ES/3090(TM)) Vector Multiprocessor. Performance measurements are discussed. The potential of the code is illustrated by an example: formation of pseudo shock waves due to interaction of a shock wave with turbulent boundary layer flow.