Turbulent mixed convection over an isothermal horizontal flat plate

Journal Article · Wed Jan 31 23:00:00 EST 1990 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.2910333· OSTI ID:5540883

Ramachandra, N ^[1]; Armaly, B F; Chen, T S ^[2]

---

1. National Aeronautics and Space Administration, Huntsville, AL (United States)
2. Univ. of Missouri, Rolla (United States)

Turbulent boundary layer flow adjacent to an isothermal horizontal flat plate is analyzed for the mixed convection regime. Results are presented for both air (Pr = 0.7) and water (Pr = 7) flowing above the heated plate at various velocities over a range of temperature differences between the plate and the free stream. Closure of the governing, time-averaged, turbulent equations for the mean flow quantities is attained by using a modified k-{epsilon} model that accounts for the influence of buoyancy-induced forces on the turbulent quantities. It is found that the local surface heat flux increases with increasing buoyancy force parameter. The numerical results are in qualitative agreement with available experimental measurements.

• OSTI ID: 5540883
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 112:1; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOUNDARY LAYERS
CALCULATION METHODS
CONVECTION
ENERGY TRANSFER
FLOW MODELS
FLUID FLOW
HEAT TRANSFER
LAYERS
MASS TRANSFER
MATHEMATICAL MODELS
ORIENTATION
PLATES
TEMPERATURE DEPENDENCE
TURBULENT FLOW