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TECHNICAL PAPERS

Flow at the Centrifugal Pump Impeller Exit With Circumferential Distortion of the Outlet Static Pressure

[+] Author and Article Information
Soon-Sam Hong

Turbopump Department, Korea Aerospace Research Institute, Daejeon 305-333, Korea

Shin-Hyoung Kang

School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, Korea

J. Fluids Eng 126(1), 81-86 (Feb 19, 2004) (6 pages) doi:10.1115/1.1637630 History: Received November 07, 2001; Revised June 23, 2003; Online February 19, 2004
Copyright © 2004 by ASME
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References

Figures

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Schematic view of the test rig
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Measurement location and details of the impeller with the fence
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Definition of circumferential position in the outward-unfolded 2-sine fence
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Static pressure rise at the impeller exit without fence
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Distribution of mean radial and tangential velocity at three flow rates without fence
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Distribution of mean radial and tangential velocity at four circumferential positions with 2-sine fence at ϕ=0.069
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Distribution of averaged flow parameters with 2-sine fence at ϕ=0.069: (a) radial, tangential, and absolute velocity, and (b) static and total pressure.
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Distribution of averaged flow parameters plotted against local flow rate with 2-sine fence at ϕ=0.069: (a) total pressure, (b) static pressure, (c) tangential velocity, and (d) relative flow angle.
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Measured and predicted velocity components with 2-sine fence (parameter=β2) at ϕ=0.069: (a) radial velocity, and (b) tangential velocity.
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Measured and predicted velocity components with 2-sine fence (parameter=Pt2) at ϕ=0.069: (a) radial velocity, and (b) tangential velocity.
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Static pressure calculated by CFD with 2-sine fence at ϕ=0.069: impeller excluded in CFD.

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