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TECHNICAL PAPERS

Numerical Prediction of Cavitating MHD Flow of Electrically Conducting Magnetic Fluid in a Converging-Diverging Nozzle

[+] Author and Article Information
Jun Ishimoto

Department of Intelligent Machines and System Engineering, Hirosaki University, 3, Bunkyo-cho, Hirosaki 036-8561, Japane-mail: ishimoto@cc.hirosaki-u.ac.jp

J. Appl. Mech 71(6), 825-838 (Jan 27, 2005) (14 pages) doi:10.1115/1.1794164 History: Received June 13, 2003; Revised March 01, 2004; Online January 27, 2005
Copyright © 2004 by ASME
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References

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Figures

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Principle of cavitating MHD power generation system using electrically conducting magnetic fluid (ECMF) flow. Magnetic body force Fu0M⋅∇H=Fd in the case without cavitation, and Fd=(1−αg0M⋅∇H<Fu with cavitation (H is the vector of magnetic field and M is the vector of magnetization).
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Schematic of model for numerical analysis
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Schematic of computational system used in numerical analysis
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Convergence histories for three sets of grids
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Time evolution of void fraction distributions
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Instantaneous liquid-phase pressure contours
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Pressure rise effect of ECMF flow and mercury flow in the longitudinal direction
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Fluctuations of bubble radius as a function of time
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Effect of magnetic acceleration on the longitudinal liquid-phase cross-sectional mean velocity as a function of time
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Instantaneous liquid-phase velocity vector (enlarged view of nozzle throat section)
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Instantaneous liquid-phase stream lines (enlarged view of nozzle throat section)
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Instantaneous gas-phase velocity vector (enlarged view of nozzle throat section)
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Power density profile in the longitudinal direction as a function of time

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