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Y+ Wall Distance Estimation Input Freestream velocity:[m/s] Density:[kg/m3] Dynamic viscosity:[kg/ms] Boundary layer length:[m] Desired Y+ value:[] Output Reynolds number:[] Estimated wall distance:[m]
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如果y表示流体介质距离壁面的真实垂向距离,SI单位为m;那么y+则表示以某种方式对y进行归一化处理后,得到的一个无量纲的参数。CFD Online 网站中关于y+的定义如下:A non-dimensional wall distance for a wall-bounded flow can be defined in the following way: Where u*is thefriction velocityat the nearest...
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近壁面的温度变化曲线与速度变化曲线类似，可以采用类似方法描述温度的非线性变化。（注意横坐标是y或y+...
怎么计算，连接在这。CFD Online - Y-Plus Wall Distance Estimation (http://cfd-online.com)http:/...
(1)pointwise的y+计算工具网址为http://www./yplus/,打开后如下图所示,输入速度、密度、粘度、特征尺寸以及Y+,网页会计算出第一层网格高度与雷诺数。 (2)CFD-Online的计算工具网址为http://www./Tools/yplus.php,打开后如下图所示。 网络上常见的NASA的Y+计算器http://geolab.larc./APPS/YPlus/,如果不...
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