A parallel three-dimensional computational aeroacoustics method using nonlinear disturbance equations

摘要

This paper describes the application of a three-dimensional com- putational aeroacoustics (CAA) methodology to the prediction of jet noise. The technique has been implemented using parallel com- puters. In this approach the nonlinear disturbance equations are solved in a conservative form using a finite-difference based tech- nique. A fourth-order optimized dispersion relation preserving scheme is used for spatial discretization and a fourth-order classical Runge-Kutta scheme is employed for temporal discretization. The Three-dimensional CAA code has been parallelized using a domain Decomposition strategy in the streamwise direction.