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  3. Lagrangian scale-similaritydependent model湍流模型

Lagrangian scale-similaritydependent model湍流模型

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  • V Offline
    V Offline
    Vortex
    wrote on last edited by 李东岳
    #1

    LESGO(一个用fortran编写的基于伪谱法的开源大涡模拟求解器,主要用于大气边界层和风能的模拟,https://lesgo.me.jhu.edu/ )提到了两种LES湍流模型Lagrangian scale-similarity model和Lagrangian scale-dependent model。这两种模型似乎在大气边界层流动模拟用得较多,想请教一下OpenFOAM这边有和这两个湍流模型相关的资料吗?

    注(https://lesgo.me.jhu.edu/subgrid.html ):
    The Lagrangian scale-similarity model dynamically changes the Smagorinsky coefficient Cs,Δ(x,t) by test filtering the flow field at a larger scale, assuming scale invariance, and averaging over Lagrangian trajectories.
    The Lagrangian scale-dependent model dynamically changes the Smagorinsky coefficient Cs,Δ(x,t) by test filtering the flow field at two larger scales and averaging over Lagrangian trajectories. Unlike the Lagrangian scale-similarity model, the Lagrangian scale-dependent model does not assume scale invariance.

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  • bestucanB Offline
    bestucanB Offline
    bestucan 版主 大神
    wrote on last edited by
    #2

    The Lagrangian scale-similarity model:
    https://www.cfd-online.com/Forums/openfoam-solving/90351-dynlagrangian-sgs-model.html

    The Lagrangian scale-dependent model:
    https://core.ac.uk/download/pdf/30828294.pdf

    对着引用文献应该能找到很多:chigua:

    滚来滚去……~(~o ̄▽ ̄)~o 滚来滚去都不能让大家看出来我不是老师么 O_o

    异步沟通方式(《posting style》from wiki)(下载后打开):
    https://www.jianguoyun.com/p/Dc52X2sQsLv2BRiqnKYD
    提问的智慧(github在gitee的镜像):
    https://gitee.com/bestucan/How-To-Ask-Questions-The-Smart-Way

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