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OpenFOAM交流区

5.3k 主题 31.6k 帖子
  • 新方程的预测步和修正步

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    谢谢东岳老师

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    R

    请问,后来。。。搞出来了吗??

  • OF波浪模拟

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    @Samuel-Tu 我以前的工作用过SWAN,SWAN一般用在大范围的波浪模拟上,适用于模拟一个海域的台风浪。它的方程是求解波浪谱,然后根据谱来求解波高、周期等参数。SWAN并不是基于过程的模型,无法给出一帧一帧的波面过程,算出来的结果仅仅是波高、周期一些参数随时间的变化。

    shallowWaterFoam是基于浅水方程的模型,一般可以用来模拟像潮流这种周期很长的长波运动,基于静压假设后简化了的NS方程。我们做潮流的一般不用OF,用其他更成熟的浅水方程模型。

  • 能否在集群的个人文件夹内安装OF

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    @bestucan 非常感谢老师的详细建议。因为集群之前就已经安装过OF,我是在个人账户里安装OF7版本的,所以可能就差这一个包。我已经使用了跑了计算,目前来看没什么问题:xiexie:

  • 多面体网格转换

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    土豆王子

    用fluent Meshing划分的多面体网格转换成OpenFOAM格式出现错误
    /---------------------------------------------------------------------------
    | ========= | |
    | \ / F ield | OpenFOAM: The Open Source CFD Toolbox |
    | \ / O peration | Version: v1912 |
    | \ / A nd | Website: www.openfoam.com |
    | \/ M anipulation | |
    *---------------------------------------------------------------------------*/
    Build : _f3950763fe-20191219 OPENFOAM=1912
    Arch : "LSB;label=32;scalar=64"
    Exec : fluent3DMeshToFoam 000.msh
    Date : Jul 03 2020
    Time : 09:25:27
    Host : King
    PID : 514
    I/O : uncollated
    Case : /mnt/d/OpenFOAM/run/test
    nProcs : 1
    trapFpe: Floating point exception trapping enabled (FOAM_SIGFPE).
    fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
    allowSystemOperations : Allowing user-supplied system call operations

    // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
    Create time

    Reading header: "ANSYS(R) TGrid(TM) 3D, parallel 18.1.0"
    Dimension of grid: 3
    Number of points: 34807
    --> FOAM Warning : Found unknown block of type: "11"
    on line 16
    Number of faces: 39160
    Number of cells: 6053
    PointGroup: 1 start: 0 end: 15. Reading points...done.
    PointGroup: 8 start: 16 end: 23. Reading points...done.
    PointGroup: 216 start: 24 end: 307. Reading points...done.
    PointGroup: 218 start: 308 end: 3281. Reading points...done.
    PointGroup: 59 start: 3282 end: 9500. Reading points...done.
    PointGroup: 61 start: 9501 end: 34806. Reading points...done.
    --> FOAM Warning : Found unknown block of type: "11"
    on line 34838
    --> FOAM Warning : Found unknown block of type: "11"
    on line 34852
    --> FOAM Warning : Found unknown block of type: "11"
    on line 34866
    --> FOAM Warning : Found unknown block of type: "11"
    on line 35156
    FaceGroup: 2 start: 39148 end: 39159. Reading uniform faces...done.
    FaceGroup: 7 start: 0 end: 3253. Reading mixed faces...done.
    FaceGroup: 62 start: 3254 end: 39147. Reading mixed faces...done.
    CellGroup: 63 start: 0 end: 6052 type: 1
    --> FOAM Warning : Found unknown block of type: "316"
    on line 74613
    --> FOAM Warning : Found unknown block of type: "71"
    on line 74632
    Zone: 63 name: zone000:000--- type: fluid. Reading zone data...done.
    Zone: 62 name: interior-p-62 type: interior. Reading zone data...done.
    Zone: 7 name: geom-zone000:000---:7 type: wall. Reading zone data...done.
    Zone: 2 name: geom-zone000:000--- type: geometry. Reading zone data...done.
    Zone: 64 name: edge-p-64 type: boundary-edge. Reading zone data...done.
    Zone: 214 name: edge-p-214 type: boundary-edge. Reading zone data...done.
    Zone: 9 name: _zone000:000---:feature:9 type: boundary-edge. Reading zone data...done.
    Zone: 3 name: _zone000:000---:feature type: boundary-edge. Reading zone data...done.
    --> FOAM Warning : Found unknown block of type: "73"
    on line 78743

    FINISHED LEXING

    Creating patch 0 for zone: 2 name: geom-zone000:000--- type: geometry
    Adding polyPatch for unknown Fluent type geometry
    Creating patch 1 for zone: 7 name: geom-zone000:000---:7 type: wall
    Creating cellZone 0 name: zone000:000--- type: fluid
    Creating faceZone 0 name: interior-p-62 type: interior
    faceZone from Fluent indices: 3254 to: 39147 type: interior
    patch 0 from Fluent indices: 39148 to: 39159 type: geometry
    patch 1 from Fluent indices: 0 to: 3253 type: wall

    --> FOAM FATAL ERROR:
    Illegal cell label -1 in neighbour addressing for face 39148

    From function void Foam::polyMesh::initMesh() in file meshes/polyMesh/polyMeshInitMesh.C at line 67.

    FOAM exiting

    ![0_1593748258811_多面体网格.png](正在上传 100%)

  • 关于OF并行分区的问题

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    X

    @东岳 :mihu:

  • openfoam 自适应网格通量修正设置

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    我这边后面主要涉及到水汽两相流,空化相关的问题,谢谢

  • 请教用openfoam模拟大气边界层流动的问题

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    李东岳

    你直接用openfoam-v2006就好,不需要用5.0版本的编译了

    参考最底部:https://www.openfoam.com/releases/openfoam-v2006/solver-and-physics.php

  • 编译求解器出现 undefined reference

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    @bestucan 感谢前辈的热心回复,目前问题已经解决,问题出现在类phaseChangeTwoPhaseMixture的make文件的files文件里面,

    LIB = $(FOAM_USER_LIBBIN)/libphaseChangeTwoPhaseMixtures //会报错 LIB = (FOAM_USER_LIBBIN)/libtwoPhaseChange //随便叫一个名字均可,均可编译通过,但不能是libphaseChangeTwoPhaseMixtures

    自己也是偶然发现的,但也比较困惑为什么这么神奇:mihu:

    不过最终问题还是解决了,很感谢前辈耐心的解答:xinxin: ,自己后面也应该好好补一点C++知识

  • 求解相方程越界问题

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    @小考拉 alpha方程如下:61c83717-3135-4a66-9cdd-c1af5ba33159-image.png

  • OpenFoam中如何设置总压进出口

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    李东岳

    感谢分享!!

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    已成功植入emoij

  • interFoam的曲率计算

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    李东岳

    或许可以把方程写出来对比一下嘛?

  • SHM 网格拉伸变形

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    A

    SHM.JPG

    请问各位大神,SHM里哪个参数导致生成的网格如图所示的拉伸变形?多谢!

  • 自己编译安装libccmio库

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    李东岳

    https://portal.nersc.gov/cfs/visit/third_party/libccmio-2.6.1.tar.gz

    连接挂掉了

  • 请教压力测量问题

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    采用动态压力传感器测量实验对象的压力脉动,在与理论结果进行对比时,应该对比理论结果的静压还是绝对压力还是其它类型的压力?

  • 使用集群并行计算时出现错误

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    U

    @人来人往 您好,请问您是石油大学华东这边的吗,最近也准备在集群上安装OF,完全没有头绪,可以请教下吗?谢谢

  • DPM并行计算

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    U

    @东岳 好的,我去了解一下,谢谢各位老师的指点

  • 8 帖子
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    Y

    您好,我最近也在使用这个边界条件,有个问题想要请教您,关于refValue的取值是直接等于具体问题的取值吗??期待您的回复

  • 6 帖子
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    @东岳 好的,谢谢东岳大神