IGTC-63 SLIP FACTOR DEPENDENCE ON FLOW COEFFICIENT IN CENTRIFUGAL COMPRESSORS(Session B-7 Aerodynamics V (Radial Flow))
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概要
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Slip Factor dependence on flow coefficient was investigated experimentally using a new technique to estimate the mean flow velocity at a vaneless diffuser. The characteristics of Slip Factor dependence on flow coefficient were found to change depending on whether the centrifugal compressors went into choking condition or not in the normal operation range. It was found that the vaned diffuser had some influences on the internal flow of the impeller, due to the facts that the inducer went into choking condition at different rotor speeds, and that the blockage factor on the inducer choke initiation were also different for the different blade angles of the vaned diffuser. The vaneless diffuser was found also to have some influences on the internal flow of the impeller exit region, at the compressor operation point near surge. But the influence of the diffusers on Slip Factor seemed to be only little, as long as our data was concerned.
- 公益社団法人日本ガスタービン学会の論文
著者
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Kobayashi T.
Kobe Univ.
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Nagata A.
Kobe Steel Ltd.
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Sakamoto Y.
Kobe Steel Ltd.
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Suyari M.
Kobe Steel Ltd.
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Ishigami H.
Kobe Steel Ltd.
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Kinoshita S.
Kobe Steel Ltd.
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