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]
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...
计算后再检查一下yPlus数值是否合适,因为在模拟过程中会形成真实的流场,可能需要重新调整网格。为了避免反复调整网格(以及使用太多的核心时间),提前计算yPlus值是有意义的。 怎么计算,连接在这。CFD Online - Y-Plus Wall Distance Estimation (http://cfd-online.com)http://www.cfd-online.com/Tools/yplus.php...
(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...
CFD Online Discussion Forums (https://www.cfd-online.com/Forums/) - FLUENT (https://www.cfd-online.com/Forums/fluent/) - - problem about wall Yplus (https://www.cfd-online.com/Forums/fluent/40253-problem-about-wall-yplus.html)
在缓冲层中，即在距离壁面5-30个壁层（wall units）之间，两种规律都不适用。5<y^+<30范围内，两...
\(Y_{M}\) : Dilatation contribution over dissipation rate \(Z\) : Particle size or geometry \(\phi_{ij,1}\) : Slow pressure-strain \(\phi_{ij,2}\) : Rapid pressure-strain \(\phi_{ij,3}\) : Wall-reflection term \(\phi_{ij}\) : Pressure strain \(\emptyset_{i...
Now insert everything into formula(7)with your wantedy^+and you are finished! Alternatively use ay^+calculator:CFD Online - Y-Plus Wall Distance Estimation A list of skin friction coefficients can be found here:Skin friction coefficient -- CFD-Wiki, the free CFD reference ...
► Is High-Order Wall-Modeled Large Eddy Simulation Ready for Prime Time? 27 Dec, 2022 ► A Benchmark for Scale Resolving Simulation with Curved Walls 28 Jun, 2021 ► The Darkest Hour Before Dawn 2 Jan, 2021 ► Facts, Myths and Alternative Facts at an Important Juncture 21 Jun, ...
Tessa Uroić Wins Inaugural Pointwise Wallpaper Contest - Andrea Alvarado, Tue, 10 Nov 2015, 6:02 p.m. 1 message How to Dramatically Improve Your CFD Design and Analysis Time, Dec 2015, United States - Margaret Connelly, Wed, 11 Nov 2015, 6:10 p.m. 1 message WEBINAR: Thermal Mo...