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TECHNICAL PAPERS

Separated Flow in Bends of Arbitrary Turning Angles, Using the Hodograph Method and Kirchhoff’s Free Streamline Theory

[+] Author and Article Information
S. S. Chu

Department of Information Management, Fooyin University, Ta-Liao, Kaohsiung Hsien, Taiwan, R.O.C.

J. Fluids Eng 125(3), 438-442 (Jun 09, 2003) (5 pages) doi:10.1115/1.1567311 History: Received January 17, 2000; Revised December 04, 2002; Online June 09, 2003
Copyright © 2003 by ASME
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References

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Lichtarowicz,  A., and Markland,  E., 1963, “Calculation of Potential Flow With Separation in a Right-Angled Elbow With Unequal Branches,” J. Fluid Mech., 17, pp. 596–606.
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Roshko,  A., 1955, “On the Wake and Drag of Bluff Bodies,” J. Aeronaut. Sci., 22, pp. 124–132.
Liu,  S. K., and Chow,  W. L., 1978, “Numerical Solutions of the Compressible Hodograph Equation,” AIAA J., 16, pp. 188–189.
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Figures

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Schematic of flow inside a bend
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A typical solution in the hodograph plane
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Solution for a right-angled bend in physical plane
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Velocity distribution along the lower side of a right-angled bend
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Pressure coefficient along the lower side of a right-angled bend
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Solution for a bend of 60 deg in physical plane
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Free streamlines for different bend angles
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Contraction coefficients for flow around bends of arbitrary turning angles
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Pressure coefficient along the lower side of the bend for α=60° using different grids
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Maximum correction convergence history for the hodograph solution
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Maximum residual convergence history for the hodograph solution

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