1993-03-01

Influencing Engine Design Using Computational Fluid Dynamics 930877

For Computational Fluid Dynamics (CFD) to be influential in designing new engines, it has to be capable of providing useful design information to engineers in a short space of time. It is usual for several months to elapse from the time it is first decided to carry out a CFD simulation to obtaining the results. This is not acceptable and a target simulation turnaround time of one day is more appropriate. This work has investigated ways in which computational models, and especially meshes, can be built quickly both using commercial software and software written in-house. Simulations using these models have been carried out and this study shows that models with distorted cells can be built with ease by one person in a few days. Some current generation flow simulation packages cannot produce results using these models, but models with acceptable distortion are now built routinely and solved within two weeks.

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