Similarity solution of combined convection heat transfer from a rotating cone or disk to non-Newtonian fluids

Journal Article · Thu Nov 01 04:00:00 EST 1990 · Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.2910504· OSTI ID:5416235

Wang, T Y; Kleinstreuer, C ^[1]

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1. North Carolina State Univ., Raleigh (USA)

A powerful similarity solution of the highly nonlinear, coupled boundary-layer equations has been developed for steady laminar mixed convection heat transfer between a rotating cone/disk and power-law fluids. Of special interest are the effects of the power-law viscosity index, a generalized local Prandtl number, the buoyancy parameter, and the type of thermal wall condition on the velocity and temperature fields and hence the skin friction coefficient and the local Nusselt number. While the momentum boundary-layer thickness increases measurably with decreasing viscosity index n, the thermal boundary-layer thickness is less affected by changes in n. The magnitude and direction of the buoyancy force influence the upward velocity profile near the wall and the temperature profiles significantly. Both Prandtl number and buoyancy parameter have a more pronounced effect on the skin friction group, SFG {approximately} c{sub f}, than on the heat transfer group, HTG {approximately} Nu.

• OSTI ID: 5416235
• Journal Information: Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 112:4; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ANALYTICAL SOLUTION
CONES
CONVECTION
ENERGY TRANSFER
FLUID FLOW
FLUID MECHANICS
HEAT TRANSFER
LAMINAR FLOW
MASS TRANSFER
MECHANICS