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TRANSPIRATION COOLING WITH LOCAL THERMAL NONEQUILIBRIUM: MODEL COMPARISON IN MULTIPHASE FLOW IN POROUS MEDIA

Volumen 19, Edición 2, 2016, pp. 131-153
DOI: 10.1615/JPorMedia.v19.i2.30
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SINOPSIS

This article investigates the evaporation process in porous media during transpiration cooling. This means that a strong heat source fully evaporates a high liquid flux, leading to complex flow situations. This multiphase flow with phase change setting is simulated with two different models, implemented in MATLAB and DuMu, a free and open source simulator, respectively. These models use different mathematical and numerical schemes but are able to simulate local thermal nonequilibrium. For a sample 1D case, the models are tested against one another and compared to results from the literature. Considerable differences to the published results are found, but the two models in this work show almost the same behavior, without any calibration employed.

CITADO POR
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  2. Su Hao, Wang Jianhua, He Fei, Chen Liang, Ai Bangcheng, Numerical investigation on transpiration cooling with coolant phase change under hypersonic conditions, International Journal of Heat and Mass Transfer, 129, 2019. Crossref

  3. He Fei, Wang Jianhua, Dong Wenjie, Wu Nan, Model comparison, thermal nonequilibrium characteristic and boundary conditions discussion of two-phase flow with phase change in porous media, Numerical Heat Transfer, Part B: Fundamentals, 76, 2, 2019. Crossref

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  5. Su Hao, He Fei, Wang Jianhua, Xiaoguang Luo , Ai Bangcheng, Numerical investigation on the effects of porous cone parameters on liquid transpiration cooling performance, International Journal of Thermal Sciences, 161, 2021. Crossref

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