Effects of tip clearance grids on the simulations of three-dimensional flow fields in a low speed compressor rotor

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作者：
National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100083, China [1 ]
机构：
来源：
Hangkong Dongli Xuebao | 2006年 / 1卷 / 137-143期
关键词：
Flow of fluids - Pressure - Rotors - Sensitivity analysis - Speed - Three dimensional;
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摘要：
The 3-D flow fields of a low-speed axial compressor rotor with a tip clearance were calculated. Compared with experimental results, effects of the tip grid-matching and the grid quality on numerical results were investigated. The result shows the requirement of the gird-matching between the tip clearance and the rotor passage for simulations of flow details in the tip clearance, and the sensitivity of the second-order difference scheme to the grid quality. In addition, it was revealed that the pressure rise characteristics did not exactly reflect the effect of grid numbers on numerical results.
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