OIL-FREE SCREW COMPRESSOR FLOW EVALUATION
Journal Title: Jurnalul Stiintific TURBO - Year 2018, Vol 5, Issue 2
Abstract
Numerical simulations are useful tools to predict the change in overall performance when optimization criteria are applied to screw compressors. The aim of this paper is to present the methodology of setting up an unsteady computational fluid dynamics (CFD) simulation for an oil-free screw compressor followed by a post-processing of results. The TwinMesh commercial software was used for meshing purpose for rotors domains, whereas the simulation and the post-processing of results were performed in Ansys CFX. The turbulence models used in this flow modeling are standard k-ε and standard k-ω coupled by the Sheer Stress Transport (SST) model. The results consist of the total power variation, the torque variation, the meridional variation of absolute pressure from inlet to outlet and last but not least the mass flow variation. This kind of work is going to be extremely valuable for future numerical studies on the performance of screw compressors.
Authors and Affiliations
Mihnea Gall, Vlad Alexandru Popa, Ion MALAEL
Keywords
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