求助：blockMesh网格生成问题
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大家好，刚开始学OpenFoam，在用porousSimpleFoam。想用blockMesh生成一个这样的几何图形：
图片中的数字是点的编号，中心的正方体是一个多孔介质区域，外围就是正常的水域。想研究流体从左侧流入后，遇到多孔介质后的流体变化。
本来是建立了一个大正方体，里面有一个小正方体，但是发现流体直接传过去了，没有发生干扰的现象，不知道该怎么修改，所以换了这个麻烦的方法。
blockMeshDict中主体代码是这样的：scale 0.01; vertices ( (0 0 0) //0// (0 0 100) //1// (36 0 0) //2// (36 0 36) //3// (36 0 64) //4// (36 0 100) //5// (64 0 0) //6// (64 0 36) //7// (64 0 64) //8// (64 0 100) //9// (100 0 0) //10// (100 0 100) //11// (36 36 36) //12// (36 36 64) //13// (64 36 36) //14// (64 36 64) //15// (36 64 36) //16// (36 64 64) //17// (64 64 36) //18// (64 64 64) //19// (0 100 0) //20// (0 100 100) //21// (36 100 0) //22// (36 100 36) //23// (36 100 64) //24// (36 100 100) //25// (64 100 0) //26// (64 100 36) //27// (64 100 64) //28// (64 100 100) //29// (100 100 0) //30// (100 100 100) //31// ); blocks ( // wall block hex (0 1 5 2 20 21 25 22) inlet ( 15 20 20 ) simpleGrading (1 1 1) hex (2 3 7 6 22 23 27 26) middle1 ( 20 20 20 ) simpleGrading (1 1 1) hex (16 17 19 18 23 24 28 27) middle2 ( 20 20 20 ) simpleGrading (1 1 1) hex (3 4 8 7 12 13 15 14) middle3 ( 20 20 20 ) simpleGrading (1 1 1) hex (4 5 9 8 24 25 29 28) middle4 ( 20 20 20 ) simpleGrading (1 1 1) hex (6 9 11 10 26 29 31 30) outlet ( 20 20 20 ) simpleGrading (1 1 1) // porosity block hex (12 13 15 14 16 17 19 18) porosity ( 20 20 20 ) simpleGrading (1 1 1) ); edges ( ); patches ( wall front ( (1 5 25 21) (5 9 29 25) (9 11 31 29) ) wall back ( (0 2 22 20) (2 6 26 22) (6 10 30 26) ) wall walls ( (0 1 5 2) (4 5 9 8) (3 4 8 7) (2 3 7 6) (6 9 11 10) (20 21 25 22) (22 23 27 26) (23 24 28 27) (24 25 29 28) (26 29 31 30) ) wall porosityWall ( (16 17 19 18) (16 17 13 12) (13 12 14 15) (14 15 19 18) (17 13 15 19) (16 12 14 18) ) patch inlet ( (0 1 21 20) ) patch outlet ( (10 11 31 30) ) ); mergePatchPairs ( );运行blockMesh后报错是这样的：
/*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: v1712 | | \\ / A nd | Web: www.OpenFOAM.com | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : v1712 Arch : "LSB;label=32;scalar=64" Exec : blockMesh Date : Feb 25 2018 Time : 19:32:16 Host : "DESKTOP-PB8VIPU" PID : 839 I/O : uncollated Case : /mnt/e/tutorials/incompressible/porousSimpleFoam/Try1 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 Deleting polyMesh directory "/mnt/e/tutorials/incompressible/porousSimpleFoam/Try1/constant/polyMesh" Creating block mesh from "/mnt/e/tutorials/incompressible/porousSimpleFoam/Try1/system/blockMeshDict" Creating block edges No non-planar block faces defined Creating topology blocks Creating topology patches Reading patches section Creating block mesh topology Reading physicalType from existing boundary file Default patch type set to empty --> FOAM FATAL ERROR: Trying to specify a boundary face 4(16 17 19 18) on the face on cell 2 which is either an internal face or already belongs to some other patch. This is face 0 of patch 3 named porosityWall. From function void Foam::polyMesh::setTopology(const cellShapeList&, const faceListList&, const wordList&, Foam::labelList&, Foam::labelList&, Foam::label&, Foam::label&, Foam::cellList&) in file meshes/polyMesh/polyMeshFromShapeMesh.C at line 322. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&)sh: 1: addr2line: not found addr2line failed #1 Foam::error::abort()sh: 1: addr2line: not found addr2line failed #2 Foam::polyMesh::setTopology(Foam::List<Foam::cellShape> const&, Foam::List<Foam::List<Foam::face> > const&, Foam::List<Foam::word> const&, Foam::List<int>&, Foam::List<int>&, int&, int&, Foam::List<Foam::cell>&)sh: 1: addr2line: not found addr2line failed #3 Foam::polyMesh::polyMesh(Foam::IOobject const&, Foam::Xfer<Foam::Field<Foam::Vector<double> > > const&, Foam::List<Foam::cellShape> const&, Foam::List<Foam::List<Foam::face> > const&, Foam::List<Foam::word> const&, Foam::PtrList<Foam::dictionary> const&, Foam::word const&, Foam::word const&, bool)sh: 1: addr2line: not found addr2line failed #4 Foam::blockMesh::createTopology(Foam::IOdictionary const&, Foam::word const&)sh: 1: addr2line: not found addr2line failed #5 Foam::blockMesh::blockMesh(Foam::IOdictionary const&, Foam::word const&)sh: 1: addr2line: not found addr2line failed #6 ?sh: 1: addr2line: not found addr2line failed #7 __libc_start_mainsh: 1: addr2line: not found addr2line failed #8 ?sh: 1: addr2line: not found addr2line failed Aborted (core dumped)刚开始学OpenFoam，还比较小白，问题应该是出在(16 17 19 18)，也就是多孔介质的上层，和流域的block重叠了，也就是这一块：
求助，应该怎么修改？万分感谢！
