Combined convection flow and heat transfer to a power law fluid in a vertical duct, including reverse flow situations

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Numerical Heat Transfer. Part A, Applications; (United States)

DOI:https://doi.org/10.1080/10407789408955936· OSTI ID:5354912

Jones, A T; Ingham, D B ^[1]

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1. Leeds Univ. (United Kingdom). Dept. of Applied Mathematical Studies

Numerical investigations are conducted into steady laminar combined convection flows of a power law fluid between vertical parallel plates with constant wall temperatures. The parabolic boundary layer equations are written in an implicit finite difference form and are then solved using a marching technique. The governing parameters are Gr/Re, Pr, and the non-Newtonian power law index n. Various values of Gr/Re and n are considered, including the forced convection solution, Gr/Re = 0, and the Newtonian case, n = 1. Pr is set at a value of unity in order to present the numerical method. Under certain circumstances, reverse flow regions appear, either at the center or adjacent to the wall of the duct, and these are dealt with using an iterative technique. Results are presented in terms of velocity profiles, local and average Nusselt numbers, and friction factors.

• OSTI ID: 5354912
• Journal Information: Numerical Heat Transfer. Part A, Applications; (United States), Journal Name: Numerical Heat Transfer. Part A, Applications; (United States) Vol. 25:1; ISSN 1040-7782; ISSN NHAAES
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CONVECTION
DATA
ENERGY TRANSFER
FLUIDS
HEAT EXCHANGERS
HEAT TRANSFER
INFORMATION
MASS TRANSFER
NUMERICAL DATA
NUMERICAL SOLUTION
RHEOLOGY
THEORETICAL DATA