An incompressible viscous fluid flow with heat transfer over a spherical object inside a pipe is considered. The flow is made three-dimensional by an eccentric positioning of the sphere inside the pipe. The governing equations are solved by a numerical method which uses a finite volume formulation in a generalized body fitted coordinate system. An overset (Chimera) grid scheme is used to resolve the two geometries of the pipe and sphere. The results are compared to those of an external flow over a sphere, and the code is validated using such results in the intermediate Reynolds number range. The blockage effects are analyzed through evaluation of lift, drag, and heat transfer rate over the sphere. Also the change in the shear stress pattern is examined through evaluation of the local friction factor on a pipe wall and sphere surface.
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Fluid Flow and Heat Transfer Over a Three-Dimensional Spherical Object in a Pipe
N. Shahcheraghi,
N. Shahcheraghi
Mechanical and Aeronautical Engineering Department, University of California, Davis, CA 95616
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H. A. Dwyer
H. A. Dwyer
Mechanical and Aeronautical Engineering Department, University of California, Davis, CA 95616
Search for other works by this author on:
N. Shahcheraghi
Mechanical and Aeronautical Engineering Department, University of California, Davis, CA 95616
H. A. Dwyer
Mechanical and Aeronautical Engineering Department, University of California, Davis, CA 95616
J. Heat Transfer. Nov 1998, 120(4): 985-990 (6 pages)
Published Online: November 1, 1998
Article history
Received:
February 22, 1996
Revised:
May 18, 1998
Online:
December 5, 2007
Citation
Shahcheraghi, N., and Dwyer, H. A. (November 1, 1998). "Fluid Flow and Heat Transfer Over a Three-Dimensional Spherical Object in a Pipe." ASME. J. Heat Transfer. November 1998; 120(4): 985–990. https://doi.org/10.1115/1.2825919
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