A new compressor and turbine blade design method based on three-dimensional euler computations with moving boundaries
| Autor: | René Van den Braembussche, Alain Demeulenaere |
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| Rok vydání: | 1999 |
| Předmět: | |
| Zdroj: | Inverse Problems in Engineering. 7:235-266 |
| ISSN: | 1029-0281 1068-2767 |
| DOI: | 10.1080/174159799088027696 |
| Popis: | A new three-dimensional inverse method for the design of compressor and turbine blades is presented. The method solves the time dependent Euler equations in a numerical domain of which some boundaries (the blade walls) are iteratively modified until a prescribed pressure distribution is reached. Each iteration of the procedure starts with a blade modification, based on the transpiration model and the permeable wall concept. After generating a new mesh the flow field is updated by performing one finite volume time iteration, taking into account the mesh points movement during the time stepping. The blade modifications and time marching computation converge simultaneously to the required geometry and steady-state flow solution. The method makes use of a high resolution three-dimensional finite volume Euler solver, with an upwind-biased evaluation of the advective fluxes for sharp shock wave capturing and low numerical entropy generation. The wall boundary conditions respect the hyperbolic character of the t... |
| Databáze: | OpenAIRE |
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