Application of integration algorithms in a parallel processing environment for the simulation of jet engines

Abstract

The development of digital dynamic simulations requires careful selection of an appropriate integration algorithm. This paper illustrates the application of predictor-corrector integration algorithms developed for the digital parallel processing environment. The algorithms are implemented and evaluated through the use of a software simulator which provides an approximate representation of the parallel processing hardware. Test cases which focus on the use of the algorithms are presented and a specific application using a linear model of a turbofan engine is considered. Results are presented showing the effects of integration step size and the number of processors on simulation accuracy. Real-time performance, inter-processor communication, and algorithm startup are also discussed.