首页> 外文会议>ASME (American Society of Mechanical Engineers) Turbo Expo 2002: Heat Transfer Manufacturing Materials and Metallurgy >NUMERICAL ASSESSMENT OF DIFFERENT TURBULENCE MODELS FOR SLOT JET IMPINGING ON FLAT AND CONCAVE SURFACES
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NUMERICAL ASSESSMENT OF DIFFERENT TURBULENCE MODELS FOR SLOT JET IMPINGING ON FLAT AND CONCAVE SURFACES

机译:开槽和凹面冲击射流的不同湍流模型的数值评估

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A numerical study has been carried out for slot jet impinging on flat and concave surfaces. Five turbulence models are employed for the predictions of these strongly strained turbulent flows, namely linear eddy viscosity model (LEVM), low-Re explicit algebraic Reynolds stress model (EASM) and tee different V2F models. A bounded formulation for C_μ was also introduced to account for the better prediction of the wall jet development. The studied Reynolds numbers vary from 8,000 to 20,000, and nozzle-to-surface distance (H) is in the range of 1≤H/B≤8. Detailed comparison is made between the results from the models and available experimental data to test the ability of the models in predicting these fluid flow and heat transfer problems.
机译:对于狭缝射流撞击在平坦和凹入表面上的数值研究已经进行。五个湍流模型用于预测这些强应变的湍流,即线性涡流粘度模型(LEVM),低Re显式代数雷诺应力模型(EASM)和不同的V2F模型。还引入了C_μ的有界公式,以更好地预测壁射流的发展。研究的雷诺数从8,000到20,000不等,并且喷嘴到表面的距离(H)在1≤H/B≤8的范围内。将模型的结果与可用的实验数据进行详细比较,以测试模型预测这些流体流动和传热问题的能力。

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