Abstract
A laser Doppler velocimeter and a resistance thermometer were used to study velocity and temperature statistics in a strongly heated turbulent two-dimensional channel flow, with the wall temperature up to 700 °C and a Reynolds number of 14,000. Normalized mean velocity and mean temperature profiles were not significantly affected by the wall heating. Turbulent intensities of temperature fluctuation were also insensitive to the heat flux. However, turbulent intensities of velocity fluctuation were suppressed in the region away from the wall, whereas those near the wall were not changed noticeably by the wall heating. This phenomenon was explained by the balance of three parameters: turbulent production, viscous dissipation and intermittency.
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Wardana, I.N.G., Ueda, T. & Mizomoto, M. Structure of turbulent two-dimensional channel flow with strongly heated wall. Experiments in Fluids 13, 17–25 (1992). https://doi.org/10.1007/BF00208070
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DOI: https://doi.org/10.1007/BF00208070