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低流量域での遠心羽根なしディフューザ内の流れ : 第1報, ボリュートなしの場合の流れの可視化と圧力変化
Flows in the Vaneless Radial Diffuser Operating at Lower Flow Rates : 1st Report, Flow Visualization and Pressure Variations in the Radial Diffuser without Volute Casing
伊良部, 邦夫
山里, 栄昭
Irabu, Kunio
Yamazato, Eisho
Fluid Machinery
Radial Diffuser
Flow visualization
Rotating Stall
Internal Flow
Fluctuating Pressure
Experiments for water flows using flow visualization techniques and for air flows using some conventional instruments were conducted on the vaneless diffusers. The rotating stall cells were confirmed in the region of lower flow rates in the vaneless radial diffuser, and the flow characteristic parameters of existence of the rotating stall cells were attained for various space widths between the impeller open face and lower diffuser side wall. The relationships between the variations in pressure and the traveling speeds of the stall cells were also shown. The pressure distributions in the vaneless diffuser can be represented by an empirical relation for the outer range of normal operating flow rates.
論文
http://purl.org/coar/resource_type/c_6501
日本機械学会
1991-11-25
VoR
http://hdl.handle.net/20.500.12000/232
03875016
AN00187441
日本機械学会論文集. B編
Transactions of the Japan Society of Mechanical Engineers. B
543
57
166
161
jpn
open access
Copyright (c) 1991 日本機械学会