Investigation of temperature statistic characteristics in turbulent water flow with unsteady heat transfer |
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Authors: | B. V. Perepelitza and A. M. Nasibulov |
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Affiliation: | Institute of Thermophysics, Novosibirsk, Russia |
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Abstract: | The results of an experimental study of a temperature field and its statistical characteristics in turbulent water flow upon a sudden change of heat generation in the channel wall are reported. Measurements were performed in 5 mm × 40 mm, 10 mm × 40 mm, and 20 mm × 40 mm channels in the regions of thermal stabilization and stabilized heat transfer at Reynolds numbers of (0.8–6.8) × 104. The measurement results are generalized using a dimensionless time scale. The results of the calculation of heat transfer coefficients at unsteady heat transfer are presented. |
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Keywords: | turbulence duct flow unsteady heat transfer experimental technique viscous sublayer |
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