학술논문
Laminar natural convection in an inclined rectangular box with the lower surface half heated and half insulated
Document Type
Conference
Author
Source
Conference: AIAA/ASME joint conference on fluids, plasma, thermophysics and heat transfer, St Louis, MO, USA, 7 Jun 1982; Other Information: Portions are illegible in microfiche products
Subject
Language
English
Abstract
The pattern of circulation and the rate of heat transfer were determined experimentally and also by three-dimensional finite-difference calculations for an inclined 2 x 1 x 1 rectangular enclosure with a 1 x 1 segment of the lower 2 x 1 surface at a uniform temperature, the other 1 x 1 segment and four side walls insulated, and the upper surface at a lower uniform temperature. A critical Rayleigh number does not exist for this thermal boundary condition; fluid motion occurs and the rate of heat transfer exceeds that for pure conduction for all temperature differences and orientations. The effects of elevation of the heated and insulated segments were investigated, as well as of inclination about the longer dimension. The observed and predicted patterns of circulation are in good agreement. The measured rates of heat are in qualitative agreement with the predictions.