| 两种雷诺应力湍流模式的比较及其在涡流计算中的应用 |
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| 引用本文： | 符松.两种雷诺应力湍流模式的比较及其在涡流计算中的应用[J].空气动力学学报,1988(3). |
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| 作者姓名： | 符松 |
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| 作者单位： | 清华大学 |
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| 摘 要： | 本文将要讨论的两种雷诺应力湍流模式为:(1)雷诺应力代数模式;(2)雷诺应力输运模式。这两种模式分别应用于弱强涡射流的计算中,其结果表明,代数模式并不能很好地近似输运模式,特别是在一些重要的流场区域,如对称轴附近,前者给出非真实的物理结果。本文将探讨代数模式的这一缺陷,同时提出一新的输运模式。
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| 关 键 词： | 湍流 涡流 雷诺应力 |
COMPARISON OF TWO REYNOLDS STRESS TURBULENCE MODELS AND THEIR APPLICATION IN SWIRLING FLOW PREDICTIONS |
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| Fu Song.COMPARISON OF TWO REYNOLDS STRESS TURBULENCE MODELS AND THEIR APPLICATION IN SWIRLING FLOW PREDICTIONS[J].Acta Aerodynamica Sinica,1988(3). |
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| Authors: | Fu Song |
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| Institution: | Qinghua University |
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| Abstract: | Two Reynolds stress turbulence models discussed in this paper are.1) Algebraic Stress Model (ASM) and,2) Reynolds Stress Transport Model (RSTM).These two models are applied both in weakly and strongly swirling flow calculations.The results are that the ASM does not approximate the RSTM properly,especially in some important flow regions,e.g.,in the vicinity of the axis of symmetry,ASM produces physically unrealistic quantities.Defects of the ASM are discussed,while an improved RSTM is also proposed. |
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| Keywords: | turbulence Reynolds stresses swirling flows |
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