ISSN:
1619-6937
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary This paper considers steady laminar combined convection flows of power-law fluids between vertical parallel-plates with a uniform temperature gradient applied to the walls. The parabolic equations are written in an implicit finite-difference form and are solved using a marching technique. The governing parameters are Gr, Pr, andn. Various values of Gr andn are considered, including the forced convection solution, Gr=0, and the Newtonian case,n=1. Pr is set at a value of unity in order to present the numerical method and to compare with the existing results for Newtonian fluids. Under certain circumstances reverse flow regions appear, either at the centre or adjacent to the walls of the duct and these are present in the fully-developed flow. These reverse flow problems are dealt with using an iterative technique. In order to assess the effects of recirculation and pseudoplasticity on the flow and heat transfer characteristics, flow profiles, Nusselt numbers and friction factors are presented for various values of the governing parameters.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01215412
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