IGTC-22 On the Nature of Rotating Stall in Centrifugal Compressors with Vaned Diffusers : Part I: Detection of Reverse Flow(Session A-7 UNSTEADY AERODYNAMICS I)
スポンサーリンク
概要
- 論文の詳細を見る
Flow characteristics of rotating stall on a high performance centrifugal compressor have been investigated experimentally concerning the nature and the physical conditions of the occurrence of this flow phenomenon. Experiments were conducted by injecting oil in the flow path near impeller outlet and by analyzing the oil patterns after disassembly of the shroud wall. Results of these measurements show strong reverse flow near the shroud extending in the impeller backward up to the leading edge of the splitter blades. Rotating stall cells could be recognized as a rotating reverse flow phenomenon with its origin at the impeller outlet. Results obtained with the oil injection method were limited to flow conditions near the blade and shroud wall. Earlier results of unsteady flow measurements of different authors were therefore interpreted on the basis of the present oil pattern results to get further insight in the origin, the course and the location of the reverse flow characterizing a rotating stall cell. Results of the investigations presented here represent a confirmation of the established model on the nature of rotating stall in Part II of this work using for explanation the analogy between this unsteady flow phenomenon and the mechanism of our weather system on the earth.
- 社団法人日本ガスタービン学会の論文
著者
-
Chen Y.N.
Sulzer Brothers Ltd.
-
Haupt U.
Institute of Turbomachinery, University of Hannover
-
Haupt U.
Inst. for Turbomachinery, Univ. of Hannover
-
Rautenberg M.
Inst. for Turbomachinery, Univ. of Hannover
-
Rautenberg M.
Inst. For Turbomachinery Hannover University
-
Haupt U.
Inst. For Turbomachinery Univ. Of Hannover W.
関連論文
- IGTC-19 Origin of the Vorticity of the Rotating Stall Cell of Centrifugal Compressors : Part II: Reverse Flow as Rigid Turbulent Ekman Layer Vortex Roll(Session A-7 CENTRIFUGAL COMPRESSOR II)
- IGTC-18 Origin of the Vorticity of the Rotating Stall Cell of Centrifugal Compressors : Part I: Experimental Investigation of the Nature of the Reverse Flow(Session A-7 CENTRIFUGAL COMPRESSOR II)
- IGTC-91 The Rossby Waves of Rotating Stall in Impellers : Part I: Theoretical Background of the Rossby Waves in Blade Channels(Organized Session I ROTATING STALL AND SURGE IN COMPRESSORS)
- IGTC-91 On the Mechanism of Blade Excitation due to Surge on Centrifugal Compressors(Session C-6 STRENGTH AND VIBRATION)
- IGTC-23 On the Nature of Rotating Stall in Centrifugal Compressors with Vaned Diffusers : Part II: Karman Vortices as the Controlling Mechanism(Session A-7 UNSTEADY AERODYNAMICS I)
- IGTC-22 On the Nature of Rotating Stall in Centrifugal Compressors with Vaned Diffusers : Part I: Detection of Reverse Flow(Session A-7 UNSTEADY AERODYNAMICS I)
- IGTC-79 Prediction of Blade Vibration Stress in Centrifugal Compressors due to Engine Order Excitation(Session D-4 VIBRATION II)
- IGTC-124 BLADE VIBRATION ON RADIAL IMPELLERS EXCITED BY ROTATING STALL-CELLS AND DURING SURGE(Session C-12 Vibration and Dynamics II)
- IGTC-118 Start-up Behaviour of Small Variable and fixed Geometry turbochargers with Ball and Solid Bearings(Organized Session VI AUTOMOTIVE TURBOCHARGERS)