Three-dimensional laminar natural convection in an inclined air slot with hexagonal honeycomb core

Journal Article · Fri Nov 01 00:00:00 EST 1991 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.2911220· OSTI ID:7206905

Asako, Y; Nakamura, H; Chen, Z ^[1]; Faghri, M ^[2]

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1. Tokyo Metropolitan Univ. (Japan)
2. Univ. of Rhode Island, Kingston (United States)

Numerical solutions are obtained for a three-dimensional natural convection heat transfer problem in an inclined air slot with a hexagonal honeycomb core. The air slot is assumed to be long and wide such that the velocity and temperature fields repeat themselves in successive enclosures. The numerical methodology is based on an algebraic coordinate transformation technique, which maps the complex cross section onto a rectangle, coupled with a calculation procedure for fully elliptic three-dimensional flows. The calculations are performed for Rayleigh numbers in the range of 10{sup 3} to 10{sup 5}, inclination angles in the range of {minus}90 to 80 deg, Prandtl number of 0.7, and for five values of the aspect ratio. Three types of thermal boundary condition for the honeycomb side walls are considered. The average Nusselt number results are compared with those for a rectangular two-dimensional enclosure.

• OSTI ID: 7206905
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Vol. 113:4; ISSN 0022-1481
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CAVITIES
LAMINAR FLOW
NATURAL CONVECTION
CALCULATION METHODS
HEXAGONAL CONFIGURATION
HONEYCOMB STRUCTURES
ORIENTATION
THREE-DIMENSIONAL CALCULATIONS
CONFIGURATION
CONVECTION
ENERGY TRANSFER
FLUID FLOW
HEAT TRANSFER
MASS TRANSFER
MECHANICAL STRUCTURES
420400* - Engineering- Heat Transfer & Fluid Flow