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[求助]
质量流量入口边界中湍流的设定?
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whcjordan123
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【答案】应助回帖
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感谢参与,应助指数 +1
xiegangmai: 金币+1, 谢谢参与! 2012-03-21 17:32:42
manariel: 金币+1, 感谢帮助,不过有些笼统了 2012-03-22 16:53:02
感谢参与,应助指数 +1
xiegangmai: 金币+1, 谢谢参与! 2012-03-21 17:32:42
manariel: 金币+1, 感谢帮助,不过有些笼统了 2012-03-22 16:53:02
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Specification of Turbulence Quantities Using Profiles If it is important to accurately represent a boundary layer or fully-developed turbulent ow at the inlet, you should ideally set the turbulence quantities by creating a boundary prole le (see Section 7.26: Boundary Proles) from experimental data or empirical formulas. If you have an analytical description of the prole, rather than data points, you can either use this analytical description to create a boundary prole le, or create a user-dened function to provide the inlet boundary information. (See the separate UDF Manual for information on user-dened functions.) Once you have created the prole function, you can use it as described below: Spalart-Allmaras model: Choose Turbulent Viscosity or Turbulent Viscosity Ratio in the Turbulence Specication Method drop-down list and select the appropriate prole name in the drop-down list next to Turbulent Viscosity or Turbulent Viscosity Ratio. FLUENT computes the boundary value for the modied turbulent viscosity, ~ , by combining t= with the appropriate values of density and molecular viscosity. k- models: Choose K and Epsilon in the Turbulence Specication Method drop-down list and select the appropriate prole names in the drop-down lists next to Turb. Kinetic Energy and Turb. Dissipation Rate. k-! models: Choose K and Omega in the Turbulence Specication Method drop-down list and select the appropriate prole names in the drop-down lists next to Turb. Kinetic Energy and Spec. Dissipation Rate. Reynolds stress model: Choose K and Epsilon in the Turbulence Specication Method drop-down list and select the appropriate prole names in the drop-down lists next to Turb. Kinetic Energy and Turb. Dissipation Rate. Choose Reynolds-Stress Components in the Reynolds-Stress Specication Method drop-down list and select the appropriate prole name in the drop-down list next to each of the individual Reynolds-stress components. 这是FLUENT用户指南上关于湍流参数设定的指导,直接拷的,应该不用给你翻译了吧 |

2楼2012-03-21 14:50:11
solidrocket
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3楼2012-04-02 11:46:35
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4楼2012-04-25 09:44:16
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5楼2015-04-04 20:31:35














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