121 research outputs found
Natural convection in a square cavity with uniformly heated and/or insulated walls using marker-and-cell method
In this study, a numerical investigation has been performed using the computational Harlow-Welch MAC (Marker and Cell) finite difference method to analyse the unsteady state two-dimensional natural convection in lid-driven square cavity with left wall maintained at constant heat flux and remaining walls kept thermally insulated. The significant parameters in the present study are Reynolds number (Re), thermal Grashof number (Gr) and Prandtl number (Pr) and Peclét number (Pe =PrRe). The structure of thermal convection patterns is analysed via streamline, vorticity, pressure and temperature contour plots. The influence of the thermophysical parameters on these distributions is described in detail. Validation of solutions with earlier studies is included. Mesh independence is also conducted. It is observed that an increase in Prandtl number intensifies the primary circulation whereas it reduces the heat transfer rate. Increasing thermal Grashof number also decreases heat transfer rates. Furthermore the isotherms are significantly compressed towards the left (constant flux) wall with a variation in Grashof number while Peclét number is fixed. The study is relevant to solar collector heat transfer simulations and also crystal growth technologies
A Computational and Experimental Study of Natural Convection and Surface/Gas Radiation Interactions in a Square Cavity
Unsteady turbulent heat transfer of mixed convection in a reciprocating circular ribbed channel
A Numerical Simulation of Combined Radiation and Natural Convection in a Differential Heated Cubic Cavity
Numerical Study of Natural Convection in a Differentially Heated Cavity With Internal Heat Generation: Effects of the Aspect Ratio
Should indications for laterally extended endopelvic resection (LEER) exclude patients with sciatica?
Study on the thermal protection performance of superalloy honeycomb panels in high-speed thermal shock environments
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