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Analysis of Orifice Compensated Aerostatic Bearing with Supersonic Flow
Author(s): LONG Wei, BAO Gang
Pages: 64-
68
Year: 2008
Issue:
4
Journal: HYDRAULICS PNEUMATICS & SEALS
Keyword: 空气静压轴承; 超音速边界层; 小激波;
Abstract: 小孔节流空气静压轴承固定气膜厚度时提高供气压力,在某些情况下节流孔的周围会发生压力突降的现象,这时可能会在节流孔附近因激波的出现而产生超音速区.本文针对这种现象,结合FLUENT软件进行分析,指出此时气膜内的压力分布,速度分布和马赫数分布,并对其分布位置进行比较和分析.从熵增角度证明小激波的存在性并且确定其出现位置.为完善静压气体轴承边界层理论提供一定的依据.
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