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TECHNICAL PAPERS

Numerical Analysis of High-Speed Bodies in Partially Cavitating Axisymmetric Flow

[+] Author and Article Information
Abraham N. Varghese

Naval Undersea Warfare Center Division Newport, RI

James S. Uhlman, Ivan N. Kirschner

Anteon Corporation Engineering, Engineering Technology Center Mystic, CT

J. Fluids Eng 127(1), 41-54 (Mar 22, 2005) (14 pages) doi:10.1115/1.1852473 History: Received November 02, 2002; Revised November 20, 2003; Online March 22, 2005
Copyright © 2005 by ASME
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References

Figures

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Partial cavitation problem
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Cavity shapes for different cavity lengths (dimensionless body radius: 0.9; dimensionless body length: 40)
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Cavity length versus cavitation number on (a) linear and (b) logarithmic scales (dimensionless body radius: 0.9; dimensionless body length: 40)
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(a) Surface pressure distribution and (b) cavity shape for different cavity lengths (dimensionless body length: 5; dimensionless body radius: 0.8); see text for discussion of pressure spikes
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Cavity shapes for various body radii (dimensionless body length: 40; dimensionless cavity length: 30)
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Riabouchinski wall height versus (a) body radius and (b) cavity length (dimensionless body length: 40)
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Maximum body radius (resolved in increments of 0.1) for nonnegative Riabouchinski wall height as a function of cavity length
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Minimum cavity length for which convergence was achieved versus body radius (dimensionless body length: 40)
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Cavity length versus cavitation number (a) for bodies of different radii (dimensionless body length: 40); (b) comparison with the zero-caliber ogive experiments of Billet and Weir (1975)
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Cavity length versus cavitation number for cavity termination on the conical forebody, comparing partial cavitation with supercavitation (dimensionless body length: 80; cone angle: 6.96 deg)
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Cavity length versus (a) cavitation number and (b) reciprocal of cavitation number for three different cone angles (dimensionless body length: 80; dimensionless body radius: 1.2)
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Numerical analysis of high-speed bodies in partially cavitating flow
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Drag coefficient versus cavity length (dimensionless body length: 80; dimensionless body radius: 1.2; cone angle: 9.55 deg; Reynolds number: 3.0e7)
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Drag coefficient versus cavity length (dimensionless body length: 80; dimensionless body radius: 1.2; cone angle: 15.92 deg; Reynolds number: 3.0e7)
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Cavity shapes for different maximum dimensionless body radii (dimensionless body length: 80; cavitation number: 0.15; cone angle: 15.92 deg)
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Dimensionless cavity length and drag components versus dimensionless body radius (dimensionless body length: 80; cavitation number: 0.1; cone angle: 15.92 deg)
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Base and total drag coefficients versus cavity length (dimensionless body length: 40; dimensionless body radius: 0.9; Reynolds number: 3.0e7) comparing the base-separated and base-cavitating flow cases
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Bivariate surface fit of cavity length as a function of cavitation number and cylinder radius (results strictly applicable to a dimensionless body length of 40; computed using Eq. (7); original numerical data plotted as markers)

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