High-performance parallel analysis of coupled problems for aircraft propulsion

摘要: This research program dealt with the application of high-performance computing methods to numerical simulation complete jet engines. The was initiated in January 1993 by applying two-dimensional parallel aeroelastic codes interior gas flow problem a bypass engine. fluid mesh generation, domain decomposition and solution capabilities were successfully tested. Attention then focused on methodology for partitioned analysis interaction flexible structure motion driven these structural displacements. latter is treated ALE technique that models as fictitious mechanical network laid along edges near-field elements. New procedures treat this coupled three-component developed during 1994 1995. These involved delayed corrections subcycling, have been tested several massively computers, including iPSC-860, Paragon XP/S IBM SP2. For global steady-state axisymmetric engine we decided use NASA-sponsored ENG10 program, which uses regular FV-multiblock-grid discretization conjunction circumferential averaging include effects blade forces, loss, combustor heat addition, blockage, bleeds convective mixing. A load-balancing preprocessor tor versions developed. During 1995 1996 capability first full 3D multirow stage. SP2 supercomputer at NASA Ames. Benchmark results presented 1196 Computational Aeroscience meeting.