期刊论文详细信息
Energies
Efficient Multi-Objective CFD-Based Optimization Method for a Scroll Distributor
Damian Obidowski1  Krzysztof Sobczak1  Mateusz Stajuda1 
[1] Institute of Turbomachinery, Lodz University of Technology, 90-924 Lodz, Poland;
关键词: optimization;    scroll;    CFD;    response surface;    parametrization;    compressor;   
DOI  :  10.3390/en14020377
来源: DOAJ
【 摘 要 】

An efficient approach to the geometry optimization problem of a non-axisymmetric flow channel is discussed. The method combines geometrical transformation with a computational fluid dynamics solver, a multi-objective genetic algorithm, and a response surface. This approach, through geometrical modifications and simplifications allows transforming a non-axisymmetric problem into the axisymmetric one in some specific devices i.e., a scroll distributor or a volute. It results in a significant decrease in the problem size, as only the flow in a quasi-2D section of the channel is solved. A significantly broader design space is covered in a much shorter time than in the standard method, and the optimization of large flow problems is feasible with desktop-class computers. One computational point is obtained approximately eight times faster than in full geometry computations. The method was applied to a scroll distributor. For the case under analysis, it was possible to increase flow uniformity, eradicate separation zones, and increase the overall efficiency, which was followed by energy savings of 16% for the scroll. The results indicate that this method can be successfully applied for the optimization of similar problems.

【 授权许可】

Unknown   

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