Natural convection - radiation interaction in boundary layer flow over horizontal surfaces

Conference · Fri Jan 01 04:00:00 EST 1982 · AIAA Pap.; (United States)

OSTI ID:6643912

Ali, M M; Chen, T S; Armaly, B F

A numerical model is developed for natural convection-radiation interaction in the boundary layer over a semi-infinite horizontal flat plate with one hot and one cold surface. The fluid is assumed to be gray, to emit, absorb, be nonscattering, and constant with a density variation in the vertical direction, which induces a buoyancy force. Two-dimensional, boundary-layer equations are defined, and the radiative heat flux is simplified using a Rosseland approximation. Conservation equations are transformed into a system of nonlinear ordinary differential equations which can be solved simultaneously with a Runge-Kutta integration scheme, along with the Newton-Raphson shooting technique. The thermal radiation is found to enhance the wall shear stress and the surface heat transfer rate on both the hot and cold sides

• Research Organization: Missouri-Rolla, University, Rolla, MO
• OSTI ID: 6643912
• Report Number(s): CONF-820604-
• Conference Information: Journal Name: AIAA Pap.; (United States) Journal Volume: 82-0917
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOUNDARY LAYERS
CONVECTION
ENERGY TRANSFER
FLUID FLOW
FLUID MECHANICS
HEAT FLUX
HEAT TRANSFER
ITERATIVE METHODS
LAMINAR FLOW
LAYERS
MATHEMATICAL MODELS
MECHANICS
NEWTON METHOD
NUMERICAL SOLUTION
PLATES
RADIANT HEAT TRANSFER
RUNGE-KUTTA METHOD
TWO-DIMENSIONAL CALCULATIONS