Forced convective heat transfer of non-Newtonian fluids on a flat plate with the heating condition of uniform surface heat flux has been investigated using a modified power-law viscosity model. This model does not restrain physically unrealistic limits; consequently, no irremovable singularities are introduced into a boundary-layer formulation for power-law non-Newtonian fluids. Therefore, the boundary-layer equations can be solved by marching from leading edge to downstream as any Newtonian fluids. For shear-thinning and shear-thickening fluids, non-Newtonian effects are illustrated via velocity and temperature distributions, shear stresses, and local temperature distribution. Most significant effects occur near the leading edge, gradually tailing off far downstream where the variation in shear stresses becomes smaller.
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The Flow of Non-Newtonian Fluids on a Flat Plate With a Uniform Heat Flux
M. M. Molla,
M. M. Molla
Department of Mechanical Engineering,
University of Glasgow
, Glasgow G12 8QQ, UK
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L. S. Yao
L. S. Yao
Department of Mechanical and Aerospace Engineering,
Arizona State University
, Tempe, AZ 85287
Search for other works by this author on:
M. M. Molla
Department of Mechanical Engineering,
University of Glasgow
, Glasgow G12 8QQ, UK
L. S. Yao
Department of Mechanical and Aerospace Engineering,
Arizona State University
, Tempe, AZ 85287J. Heat Transfer. Jan 2009, 131(1): 011702 (6 pages)
Published Online: October 17, 2008
Article history
Received:
October 24, 2007
Revised:
June 17, 2008
Published:
October 17, 2008
Citation
Molla, M. M., and Yao, L. S. (October 17, 2008). "The Flow of Non-Newtonian Fluids on a Flat Plate With a Uniform Heat Flux." ASME. J. Heat Transfer. January 2009; 131(1): 011702. https://doi.org/10.1115/1.2977610
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