Numerical solutions of turbulent convection over a flat plate with angle of attack

Journal Article · Sat Jan 31 23:00:00 EST 1987 · Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.3248049· OSTI ID:5494194

Truncellito, N T ^[1]; Yeh, H; Lior, N ^[2]

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1. Univ. of Pennsylvania, Philadelphia (USA) General Electric Co., Valley Forge, PA (USA)
2. Univ. of Pennsylvania, Philadelphia (USA)

As evident from the literature, the knowledge of turbulent convection over flat plates with an angle of attack is limited principally to empirical results of overall heat transfer coefficients (possibly in the form of Nusselt numbers or Colburn j factors) in some ranges of the Reynolds number. This study was motivated in part by the lack of a conclusive method to determine heat loss due to wind effects on the exterior of inclined solar collectors and photovoltaic panels, as also evident from the widespread use of the Jurges correlation which does not incorporate any dimensions or fluid properties and is thus strictly correct only for the size of plate and thermal conditions of Jurges' experiment. The purpose of this investigation is to examine the turbulent boundary layer flow corresponding skin friction and convection heat loss as a function of free-stream velocity and angle of attack, by using a combined analytical/numerical approach. Many such approaches exist for the computation of turbulent flow. The approach taken in this study was to establish and solve two modelsm a zeroth-order one and a first-order one, determine their validity by comparison to existing experimental results and correlations, and compare the effort required for thier solution. Since it is generally accepted that the zero-order model is a reasonable approximation, it serves here as a base with width the first-order model solution accuracy and effort are compared.

• OSTI ID: 5494194
• 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. 109:1; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501 -- Solar Energy Conversion-- Photovoltaic Conversion
141000* -- Solar Collectors & Concentrators
CALCULATION METHODS
CONVECTION
ENERGY TRANSFER
EQUIPMENT
FLUID FLOW
HEAT TRANSFER
MASS TRANSFER
NUSSELT NUMBER
PLATES
REYNOLDS NUMBER
SOLAR CELL ARRAYS
SOLAR COLLECTORS
SOLAR EQUIPMENT
TURBULENT FLOW