Abstract
An experimental and numerical study of laminar natural convection in a water-filled enclosure with an aspect ratio of 2:1 was conducted. Two opposing vertical walls were held at different uniform temperatures. The remaining four walls of the enclosure were insulated. The Rayleigh number based upon the height of the enclosure was 6.4×10 8 while that based upon the distance between the two isothermal plates was 8×10 7. The mean vertical velocities were measured using a two-beam laser Doppler anemometer system with forward scatter. The mean temperature profiles were obtained using a small, 0.07 mm diameter, chromelalumel thermocouple probe. A multilevel-multigrid algorithm was used to predict the flow for the experimental conditions studied. The predicted and experimental results for the mean vertical velocity profiles were compared and found to be in excellent agreement.
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