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[Gmsh] OpenFoam Error Message: "no cells read from file .msh"

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Old   June 13, 2015, 17:04
Cool [Gmsh] OpenFoam Error Message: "no cells read from file .msh"
  #1
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Massachusetts
Join Date: Jun 2015
Posts: 15
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kayla1994 is on a distinguished road
Hello all.
I've just made my first 2d mesh with GMSH i think it's corretly written.
Now i try to load it to OpenFoam but it returns me this error:
"no cells read from file .msh
Does your file specify any 3D elements (hex=5, prism=6, pyramid=7, tet=4)
"
my mesh is 2D.

Does anyone know the problem?
Thanks

this is my .geo:

// Gmsh project created on Sat Jun 13 11:37:29 2015
Point(1) = {1, 0, 0, 1};
Point(3) = {0.99572, 0.00057, 0, 0.0001};
Point(5) = {0.98296, 0.00218, 0, 0.0001};
Point(6) = {0.96194, 0.00463, 0, 0.0001};
Point(7) = {0.93301, 0.0077, 0, 0.0001};
Point(8) = {0.89668, 0.01127, 0, 0.0001};
Point(9) = {0.85355, 0.01522, 0, 0.0001};
Point(10) = {0.80438, 0.01945, 0, 0.0001};
Point(11) = {0.75, 0.02384, 0, 0.0001};
Point(12) = {0.69134, 0.02823, 0, 0.0001};
Point(13) = {0.62941, 0.03247, 0, 0.0001};
Point(14) = {0.56526, 0.03638, 0, 0.0001};
Point(15) = {0.5, 0.03978, 0, 0.0001};
Point(16) = {0.43474, 0.04248, 0, 0.0001};
Point(17) = {0.37059, 0.04431, 0, 0.0001};
Point(18) = {0.33928, 0.04484, 0, 0.0001};
Point(19) = {0.30866, 0.04509, 0, 0.0001};
Point(20) = {0.27886, 0.04504, 0, 0.0001};
Point(21) = {0.25, 0.04466, 0, 0.0001};
Point(22) = {0.22221, 0.04397, 0, 0.0001};
Point(23) = {0.19562, 0.04295, 0, 0.0001};
Point(24) = {0.17033, 0.04161, 0, 0.0001};
Point(25) = {0.14645, 0.03994, 0, 0.0001};
Point(26) = {0.12408, 0.03795, 0, 0.0001};
Point(27) = {0.10332, 0.03564, 0, 0.0001};
Point(28) = {0.08427, 0.03305, 0, 0.0001};
Point(29) = {0.06699, 0.03023, 0, 0.0001};
Point(31) = {0.05156, 0.0272, 0, 0.0001};
Point(32) = {0.03806, 0.02395, 0, 0.0001};
Point(33) = {0.02653, 0.02039, 0, 0.0001};
Point(34) = {0.01704, 0.01646, 0, 0.0001};
Point(35) = {0.00961, 0.01214, 0, 0.0001};
Point(36) = {0.00428, 0.00767, 0, 0.0001};
Point(37) = {0.00107, 0.00349, 0, 0.0001};
Point(38) = {0, 0, 0, 0.0001};
Point(39) = {0.00107, -0.00349, 0, 0.0001};
Point(40) = {0.00428, -0.00767, 0, 0.0001};
Point(41) = {0.00961, -0.01214, 0, 0.0001};
Point(42) = {0.01704, -0.01646, 0, 0.0001};
Point(43) = {0.02653, -0.02039, 0, 0.0001};
Point(44) = {0.03806, -0.02395, 0, 0.0001};
Point(45) = {0.05156, -0.0272, 0, 0.0001};
Point(46) = {0.06699, -0.03023, 0, 0.0001};
Point(47) = {0.08427, -0.03305, 0, 0.0001};
Point(48) = {0.10332, -0.03564, 0, 0.0001};
Point(49) = {0.10332, -0.03564, 0, 0.0001};
Point(50) = {0.12408, -0.03795, 0, 0.0001};
Point(51) = {0.14645, -0.03994, 0, 0.0001};
Point(52) = {0.17033, -0.04161, 0, 0.0001};
Point(53) = {0.19562, -0.04295, 0, 0.0001};
Point(54) = {0.22221, -0.04397, 0, 0.0001};
Point(55) = {0.25, -0.04466, 0, 0.0001};
Point(56) = {0.27886, -0.04504, 0, 0.0001};
Point(57) = {0.30866, -0.04509, 0, 0.0001};
Point(58) = {0.33928, -0.04484, 0, 0.0001};
Point(59) = {0.33928, -0.04484, 0, 0.0001};
Point(60) = {0.37059, -0.04431, 0, 0.0001};
Point(61) = {0.43474, -0.04248, 0, 0.0001};
Point(62) = {0.5, -0.03978, 0, 0.0001};
Point(63) = {0.56526, -0.03638, 0, 0.0001};
Point(64) = {0.62941, -0.03247, 0, 0.0001};
Point(65) = {0.69134, -0.02823, 0, 0.0001};
Point(66) = {0.75, -0.02384, 0, 0.0001};
Point(67) = {0.80438, -0.01945, 0, 0.0001};
Point(68) = {0.85355, -0.01522, 0, 0.0001};
Point(69) = {0.89668, -0.01127, 0, 0.0001};
Point(70) = {0.93301, -0.0077, 0, 0.0001};
Point(71) = {0.96194, -0.00463, 0, 0.0001};
Point(72) = {0.98296, -0.00218, 0, 0.0001};
Point(73) = {0.99572, -0.00057, 0, 0.0001};

Spline(1) = {38, 37, 36, 35, 34, 33, 32, 31, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 3, 1, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 58, 57, 56, 55, 54, 53, 52, 51, 50, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38};


Point(74) = {7, 5, 0, 1.0};
Point(75) = {7, -5, 0, 1.0};
Point(76) = {-7, -5, 0, 1.0};
Point(77) = {-7, 5, 0, 1.0};
Point(78) = {7, 0.5, 0, 1.0};
Point(79) = {7, -0.5, 0, 1.0};
Point(80) = {0, 0, 0, 0.0001};
Point(81) = {0, 0.5, 0, 1.0};
Point(82) = {0, -0.5, 0, 1.0};
Point(83) = {-0.5, 0, 0, 1.0};
Line(2) = {76, 77};
Line(3) = {77, 74};
Line(4) = {74, 78};
Line(5) = {78, 81};
Line(6) = {82, 79};
Line(7) = {79, 75};
Line(8) = {75, 76};
Line(9) = {78, 79};
Circle(10) = {81, 80, 83};
Circle(11) = {83, 80, 82};

Line Loop(12) = {2, 3, 4, 5, 10, 11, 6, 7, 8};
Plane Surface(13) = {12};
Line Loop(14) = {5, 10, 11, 6, -9};
Line Loop(15) = {1};
Plane Surface(16) = {14, 15};
Physical Line("Left") = {2};
Physical Line("Top") = {3};
Physical Line("Right") = {4, 9, 7};
Physical Line("Bottom") = {8};
Physical Line("Airfoil") = {1};
kayla1994 is offline   Reply With Quote

Old   July 13, 2015, 09:26
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  #2
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KateEisenhower is on a distinguished road
Hi Kayla,

OpenFOAM can only handle 3D grids. You have to extrude your 2D mesh in gmsh before you can work with it.

Best regards,

Kate
KateEisenhower is offline   Reply With Quote

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