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TECHNICAL PAPERS: Heat Transfer Enhancement

Moving and Rotating Sphere in the Thermal Entrance Region of a Heated Pipe

[+] Author and Article Information
N. Shahcheraghi, H. A. Dwyer

Mechanical and Aeronautical Engineering Department, University of California, Davis, CA 95616

J. Heat Transfer 122(2), 336-344 (Dec 10, 1999) (9 pages) doi:10.1115/1.521469 History: Received January 05, 1999; Revised December 10, 1999
Copyright © 2000 by ASME
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References

Kreith, F., and Bohn, M. S., 1986, Principles of Heat Transfer, 4th Ed. Harper and Row, New York.
Salazar,  A. J., and Campo,  A., 1990, “Prediction of the Thermal Entry Length Without Solving the Complete Entrance Length Problem,” Int. J. Heat Fluid Flow, 11, No. 1, Mar., pp. 48–53.
Clift, R., Grace, J. R., and Webber, M. E., 1978, Bubbles, Drops, and Particles, Academic Press, San Diego, CA.
Shahcheraghi,  N., and Dwyer,  H. A., 1998, “Fluid Flow and Heat Transfer Over 3-D Spherical Object in a Pipe,” ASME J. Heat Transfer, 120, p. 985.
Dwyer,  H. A., 1989, “Calculation of Droplet Dynamics in High Temperature Environments,” Prog. Energy Combust. Sci., 15, pp. 131–158.
Nirschl, H., Dwyer, H. A., and Denk, V., 1994, “A Chimera Grid Scheme for Calculation of Particle Flows,” J. Fluid Mech., accepted for publication.
Nirschl,  H., Dwyer,  H. A., and Denk,  V., 1995, “Three-Dimensional Calculation of the Simple Shear Flow Around a Single Particle Between Two Moving Walls,” J. Fluid Mech., 283, pp. 273–285.
Shahcheraghi, N., 1996, Ph.D. thesis, University of California, Davis, CA, June.
Dougherty, F. C., 1985, “Development of a Chimera Grid Scheme With Applications to Unsteady Problems,” Ph.D. thesis, Stanford University, Stanford, CA.
Baysal,  O., Fouladi,  K., and Lessard,  R., 1991, “Multigrid and Upwind Viscous Flow Solver on Three-Dimensional Overlapped and Embedded Grids,” AIAA J., 29, No. 6, p. 903.
Fouladi,  K., and Baysal,  O., 1992, “Viscous Simulation Method for Unsteady Flow Past Multicomponent Configurations,” J. Fluids Eng., 114, June, pp. 161–169.
Yen,  G. W., and Baysal,  O., 1994, “Computation of Unsteady Flow Past an Oscillating Cylinder Near a Vertical Wall,” J. Spacecr. Rockets, 31, No. 4, p. 630.
White, F. M., 1994, Fluid Mechanics, 3rd Ed., McGraw-Hill, New York.
Dandy,  D. S., and Dwyer,  H. A., 1990, “A Sphere in Shear Flow at Finite Reynolds Number: Effect of Shear on Particle Lift, Drag and Heat Transfer,” J. Fluid Mech., 216, pp. 381–410.

Figures

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Basic arrangement for the moving and rotating sphere inside the pipe
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(a) Typical Chimera grid with holes (hollow squares) and fringe points (solid squares) (b) Typical Chimera grid used in this study
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Sphere surface pressure, Rep=25, Ds/Dp=0.4
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(a) Local friction factor on sphere surface at various angles, Rep=25, Ds/Dp=0.4 (b) Local friction factor contours on sphere surface, Rep=25, DR=0.4
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Stream lines in the plane of symmetry, Rep=25, Ds/Dp=0.4
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Sphere Nusselt Number, Nus, versus distance, X*, from pipe thermal entrance
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Sphere temperature, TS*, versus distance, X*, from pipe thermal entrance
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(a) Local Nu around the sphere at various angles, Rep=25, Ds/Dp=0.4, X*=0.0 (b) Local Nu around the sphere at various angles, Rep=25, Ds/Dp=0.4, X*=0.168
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Nusselt number contours on sphere surface, Rep=25, Ds/Dp=0.4, X*=0.0 (a) and X*=0.168 (b)
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(a) Convergence history for the velocity field (b) Convergence history for the pressure correction variable, ϕ

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