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-   -   [Solved] Wedge Patch '*' is not planer error (https://www.cfd-online.com/Forums/openfoam/176129-solved-wedge-patch-not-planer-error.html)

jwh107 August 11, 2016 11:18
[Solved] Wedge Patch '*' is not planer error
 
I recently faced "Wedge Patch '*' is not planer error" and I solved it.
I'd like to let other know how I solved that error.
FYI I doesn't have much experience in openFoam and other CFD software.
But I think this information should be written.

When you createBaffles, checkMesh or execute solve command.
Most of the time it happens. If you didn't properly meshing your stuff.
Buy the way what I mean "Wedge Patch '*' is not planer error" is something like below.

Quote:
--> FOAM Warning :
From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBu ffers&)
in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 69
Wedge patch 'wedge1' is not planar.
At local face at (14.3435 -1646.04 0.626253) the normal (-0.0436194 -3.09103e-17 0.999048) differs from the average normal (-0.0436195 -4.45833e-08 0.999048) by 2.40193e-14
Either correct the patch or split it into planar parts
--> FOAM Warning :
From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBu ffers&)
in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 69
Wedge patch 'wedge1' is not planar.
At local face at (10.6613 -277.657 0.465485) the normal (-0.0436194 -1.58485e-17 0.999048) differs from the average normal (-0.0436195 -4.45833e-08 0.999048) by 2.40193e-14
Either correct the patch or split it into planar parts
--> FOAM Warning :
From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBu ffers&)
in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 69
Wedge patch 'wedge1' is not planar.
At local face at (2.34513 -243.263 0.102391) the normal (-0.0436194 -1.28862e-17 0.999048) differs from the average normal (-0.0436195 -4.45833e-08 0.999048) by 2.40193e-14
Let me show you how I eradicate this kind of annoying errors.

1. Check and change your mesh

Personally, I use Gmsh to mesh my stuff. That's because it is easy for me to use. Anyway, I didn't check my mesh properly back then.
I create the point geometry with my matlab code and implemented it to Gmsh to create duct simulation for me.
Here are my codes.

It didn't work.
Quote:
// Gmsh project created on Mon Aug 8 12:40:08 2016
// Gmsh project created on Thu Aug 4 20:38:08 2016
// INPUT

Point(1) = { 26.85209117 , -47.71562961 , 0 };
Point(2) = { 26.99588777 , -43.95394396 , 0 };
Point(3) = { 26.93422936 , -40.18652033 , 0 };
Point(4) = { 26.6675852 , -36.44203111 , 0 };
Point(5) = { 26.19798461 , -32.74897411 , 0 };
Point(6) = { 25.52900154 , -29.13545573 , 0 };
Point(7) = { 24.66572736 , -25.62897702 , 0 };
Point(8) = { 23.61473209 , -22.25622441 , 0 };
Point(9) = { 22.38401446 , -19.04286657 , 0 };
Point(10) = { 20.98294096 , -16.01335911 , 0 };
Point(11) = { 19.42217461 , -13.1907584 , 0 };
Point(12) = { 17.71359378 , -10.59654613 , 0 };
Point(13) = { 15.87020181 , -8.250465843 , 0 };
Point(14) = { 13.90602802 , -6.17037261 , 0 };
Point(15) = { 11.83602096 , -4.3720972 , 0 };
Point(16) = { 9.675934638 , -2.869325575 , 0 };
Point(17) = { 7.442208607 , -1.673494735 , 0 };
Point(18) = { 5.151842875 , -0.793705675 , 0 };
Point(19) = { 2.822268508 , -0.23665412 , 0 };
Point(20) = { 0.471214974 , -0.006579569 , 0 };
Point(21) = { -2.199003211 , -0.033583218 , 0 };
Point(22) = { -6.594330487 , -0.302187587 , 0 };
Point(23) = { -10.98162359 , -0.839069071 , 0 };
Point(24) = { -15.35553727 , -1.643573563 , 0 };
Point(25) = { -19.7107426 , -2.714720899 , 0 };
Point(26) = { -24.04193342 , -4.05120605 , 0 };
Point(27) = { -28.34383285 , -5.651400715 , 0 };
Point(28) = { -32.61119968 , -7.513355303 , 0 };
Point(29) = { -36.8388348 , -9.63480131 , 0 };
Point(30) = { -41.02158746 , -12.01315408 , 0 };
Point(31) = { -45.15436164 , -14.64551596 , 0 };
Point(32) = { -49.23212219 , -17.52867981 , 0 };
Point(33) = { -53.24990098 , -20.65913296 , 0 };
Point(34) = { -57.20280297 , -24.03306142 , 0 };
Point(35) = { -61.08601215 , -27.64635458 , 0 };
Point(36) = { -64.89479744 , -31.4946102 , 0 };
Point(37) = { -68.62451841 , -35.57313977 , 0 };
Point(38) = { -72.27063098 , -39.87697423 , 0 };
Point(39) = { -75.82869292 , -44.40087003 , 0 };
Point(40) = { -79.29436927 , -49.1393155 , 0 };
Point(41) = { -82.66343765 , -54.08653756 , 0 };
Point(42) = { -85.93179337 , -59.23650879 , 0 };
Point(43) = { -89.09545443 , -64.58295475 , 0 };
Point(44) = { -92.1505664 , -70.11936161 , 0 };
Point(45) = { -95.09340711 , -75.83898411 , 0 };
Point(46) = { -97.92039114 , -81.73485377 , 0 };
Point(47) = { -100.6280743 , -87.79978739 , 0 };
Point(48) = { -103.2131576 , -94.02639578 , 0 };
Point(49) = { -105.6724916 , -100.4070928 , 0 };
Point(50) = { -108.0030799 , -106.9341045 , 0 };
Point(51) = { -110.2020831 , -113.5994787 , 0 };
Point(52) = { -112.266822 , -120.3950948 , 0 };
Point(53) = { -114.1947812 , -127.3126733 , 0 };
Point(54) = { -115.9836115 , -134.3437862 , 0 };
Point(55) = { -117.6311337 , -141.4798671 , 0 };
Point(56) = { -119.1353405 , -148.7122219 , 0 };
Point(57) = { -120.4943993 , -156.0320391 , 0 };
Point(58) = { -121.7066541 , -163.4304006 , 0 };
Point(59) = { -122.7706282 , -170.8982925 , 0 };
Point(60) = { -123.6850251 , -178.4266165 , 0 };
Point(61) = { -124.4487309 , -186.0062005 , 0 };
Point(62) = { -125.0608151 , -193.6278098 , 0 };
Point(63) = { -125.520532 , -201.2821587 , 0 };
Point(64) = { -125.8273214 , -208.9599216 , 0 };
Point(65) = { -125.9808096 , -216.6517444 , 0 };
Point(66) = { -125.9808096 , -224.3482556 , 0 };
Point(67) = { -125.8273214 , -232.0400784 , 0 };
Point(68) = { -125.520532 , -239.7178413 , 0 };
Point(69) = { -123.020532 , -248.1032949 , 0 };
Point(70) = { -120.520532 , -256.4887485 , 0 };
Point(71) = { -118.020532 , -264.8742021 , 0 };
Point(72) = { -115.520532 , -273.2596557 , 0 };
Point(73) = { -113.020532 , -281.6451093 , 0 };
Point(74) = { -110.520532 , -290.0305629 , 0 };
Point(75) = { -108.020532 , -298.4160165 , 0 };
Point(76) = { -105.520532 , -306.8014701 , 0 };
Point(77) = { -103.020532 , -315.1869237 , 0 };
Point(78) = { -100.520532 , -323.5723773 , 0 };
Point(79) = { -98.02053196 , -331.9578309 , 0 };
Point(80) = { -95.52053196 , -340.3432846 , 0 };
Point(81) = { -93.02053196 , -348.7287382 , 0 };
Point(82) = { -90.52053196 , -357.1141918 , 0 };
Point(83) = { -88.02053196 , -365.4996454 , 0 };
Point(84) = { -85.52053196 , -373.885099 , 0 };
Point(85) = { -83.02053196 , -382.2705526 , 0 };
Point(86) = { -80.52053196 , -390.6560062 , 0 };
Point(87) = { -78.02053196 , -399.0414598 , 0 };
Point(88) = { -75.52053196 , -407.4269134 , 0 };
Point(89) = { -73.02053196 , -415.812367 , 0 };
Point(90) = { -70.52053196 , -424.1978206 , 0 };
Point(91) = { -68.02053196 , -432.5832742 , 0 };
Point(92) = { -65.52053196 , -440.9687278 , 0 };
Point(93) = { -63.02053196 , -430.3256096 , 0 };
Point(94) = { -60.52053196 , -419.6824915 , 0 };
Point(95) = { -58.02053196 , -409.0393733 , 0 };
Point(96) = { -55.52053196 , -398.3962551 , 0 };
Point(97) = { -53.02053196 , -387.7531369 , 0 };
Point(98) = { -50.52053196 , -377.1100187 , 0 };
Point(99) = { -48.02053196 , -366.4669005 , 0 };
Point(100) = { -45.52053196 , -355.8237823 , 0 };
Point(101) = { -43.02053196 , -345.1806641 , 0 };
Point(102) = { -40.52053196 , -334.5375459 , 0 };
Point(103) = { -38.02053196 , -323.8944277 , 0 };
Point(104) = { -35.52053196 , -313.2513096 , 0 };
Point(105) = { -33.02053196 , -302.6081914 , 0 };
Point(106) = { -30.52053196 , -291.9650732 , 0 };
Point(107) = { -28.02053196 , -281.321955 , 0 };
Point(108) = { -25.52053196 , -270.6788368 , 0 };
Point(109) = { -23.02053196 , -260.0357186 , 0 };
Point(110) = { -20.52053196 , -249.3926004 , 0 };
Point(111) = { -18.02053196 , -238.7494822 , 0 };
Point(112) = { -15.52053196 , -228.106364 , 0 };
Point(113) = { -13.02053196 , -217.4632458 , 0 };
Point(114) = { -10.52053196 , -206.8201277 , 0 };
Point(115) = { -8.02053196 , -196.1770095 , 0 };
Point(116) = { -5.52053196 , -185.5338913 , 0 };
Point(117) = { -3.02053196 , -174.8907731 , 0 };
Point(118) = { -0.52053196 , -164.2476549 , 0 };
Point(119) = { 1.97946804 , -153.6045367 , 0 };
Point(120) = { 4.47946804 , -142.9614185 , 0 };
Point(121) = { 6.97946804 , -132.3183003 , 0 };
Point(122) = { 9.47946804 , -121.6751821 , 0 };
Point(123) = { 11.97946804 , -111.0320639 , 0 };
Point(124) = { 14.47946804 , -100.3889458 , 0 };
Point(125) = { 16.97946804 , -89.74582756 , 0 };
Point(126) = { 19.47946804 , -79.10270937 , 0 };
Point(127) = { 21.97946804 , -68.45959118 , 0 };
Point(128) = { 24.47946804 , -57.81647299 , 0 };

Line(1) = {1:128,1};

Point(131) = {0, -2000, 0, 1.0};
Point(134) = {0, 1500, 0, 1.0};
Point(135) = {2000, 1500, 0, 1.0};
Point(136) = {2000, -2000, 0, 1.0};

Line(3) = {136, 131};
Line(4) = {136, 135};
Line(5) = {135, 134};

Translate {300, 0, 0} {
Line{1};
}


Point(137) = {0, -248.1, 0, 1.0};

Line(6) = {131, 137};
Line(7) = {137, 134};
Line(8) = {137, 69};

Line Loop(9) = {-8,7,-5,-4,3,6,8};




Line Loop(10) = {7, -5, -4, 3, 6};
Line Loop(11) = {1};

Plane Surface(12) = {9, 11};

Rotate {{0,1,0},{0,0,0},2.5*Pi/180.0}
{
Surface{12};
}

new_entities[] = Extrude {{0,1,0},{0,0,0},-5*Pi/180.0}
{
Surface{12};
Layers{1};
Recombine;
};

Physical Surface("wedge0") = {12};
Physical Surface("wedge1") = {new_entities[0]};
Physical Surface("baffle") = {new_entities[2]};
Physical Surface("inlet") = {new_entities[3]};
Physical Surface("tunnel") = {new_entities[4]};
Physical Surface("outlet") = {new_entities[5]};
Physical Surface("duct") = {new_entities[7]};
Physical Volume("AIR") = {1};



Transfinite Line {7, 6, 18, 3, 16, 5, 17, 4} = 50 Using Progression 1;
Transfinite Line {8, 14} = 40 Using Progression 1;
Transfinite Line {23} = 20 Using Progression 1;
Transfinite Line {21, 1} = 300 Using Progression 1;
It worked.
Quote:

Point(1) = { 326.8521 , -47.7156 , 0 };
Point(2) = { 326.1980 , -32.7490 , 0 };
Point(3) = { 322.3840 , -19.0429 , 0 };
Point(4) = { 315.8702 , -8.2505 , 0 };
Point(5) = { 307.4422 , -1.6735 , 0 };
Point(6) = { 297.8010 , -0.0336 , 0 };
Point(7) = { 286.8294 , -1.2079 , 0 };
Point(8) = { 275.9581 , -4.0512 , 0 };
Point(9) = { 265.2697 , -8.5418 , 0 };
Point(10) = { 254.8456 , -14.6455 , 0 };
Point(11) = { 244.7652 , -22.3159 , 0 };
Point(12) = { 235.1052 , -31.4946 , 0 };
Point(13) = { 225.9391 , -42.1118 , 0 };
Point(14) = { 217.3366 , -54.0865 , 0 };
Point(15) = { 209.3632 , -67.3278 , 0 };
Point(16) = { 202.0796 , -81.7349 , 0 };
Point(17) = { 195.5413 , -97.1980 , 0 };
Point(18) = { 189.7979 , -113.5995 , 0 };
Point(19) = { 184.8933 , -130.8146 , 0 };
Point(20) = { 180.8647 , -148.7122 , 0 };
Point(21) = { 177.7427 , -167.1562 , 0 };
Point(22) = { 175.5513 , -186.0062 , 0 };
Point(23) = { 174.3069 , -205.1187 , 0 };
Point(24) = { 174.0192 , -224.3483 , 0 };
Point(25) = { 174.6902 , -243.5485 , 0 };
Point(26) = { 179.6902 , -260.0080 , 0 };
Point(27) = { 184.6902 , -276.4675 , 0 };
Point(28) = { 189.6902 , -292.9269 , 0 };
Point(29) = { 194.6902 , -309.3864 , 0 };
Point(30) = { 199.6902 , -325.8459 , 0 };
Point(31) = { 204.6902 , -342.3053 , 0 };
Point(32) = { 209.6902 , -358.7648 , 0 };
Point(33) = { 214.6902 , -375.2243 , 0 };
Point(34) = { 219.6902 , -391.6838 , 0 };
Point(35) = { 224.6902 , -408.1432 , 0 };
Point(36) = { 229.6902 , -424.6027 , 0 };
Point(37) = { 234.6902 , -441.0622 , 0 };
Point(38) = { 239.6902 , -419.7222 , 0 };
Point(39) = { 244.6902 , -398.3822 , 0 };
Point(40) = { 249.6902 , -377.0422 , 0 };
Point(41) = { 254.6902 , -355.7022 , 0 };
Point(42) = { 259.6902 , -334.3622 , 0 };
Point(43) = { 264.6902 , -313.0222 , 0 };
Point(44) = { 269.6902 , -291.6823 , 0 };
Point(45) = { 274.6902 , -270.3423 , 0 };
Point(46) = { 279.6902 , -249.0023 , 0 };
Point(47) = { 284.6902 , -227.6623 , 0 };
Point(48) = { 289.6902 , -206.3223 , 0 };
Point(49) = { 294.6902 , -184.9823 , 0 };
Point(50) = { 299.6902 , -163.6423 , 0 };
Point(51) = { 304.6902 , -142.3023 , 0 };
Point(52) = { 309.6902 , -120.9624 , 0 };
Point(53) = { 314.6902 , -99.6224 , 0 };
Point(54) = { 319.6902 , -78.2824 , 0 };
Point(55) = { 324.6902 , -56.9424 , 0 };

Line(56) = {1:55,1};

Line Loop(57) = {56};

Point(58) = {0, -2000, 0, 100};
Point(59) = {0, 1500, 0, 100};
Point(60) = {2000, 1500, 0, 100};
Point(61) = {2000, -2000, 0, 100};
Point(62) = {0, -243.5, 0, 100};

Line(63) = {25, 62};
Line(64) = {62, 59};
Line(65) = {59, 60};
Line(66) = {60, 61};
Line(67) = {61, 58};
Line(68) = {58, 62};
Line(69) = {62, 25};

Line Loop(70) = {63:69};

Plane Surface(71) = {57, 70};


Transfinite Line {64, 68} = 40 Using Progression 1;
Transfinite Line {67, 65} = 40 Using Progression 1;
Transfinite Line {66} = 60 Using Progression 1;
Transfinite Line {63} = 20 Using Progression 1;
Transfinite Line {56} = 600 Using Progression 1;

Rotate {{0,1,0},{0,0,0},2.5*Pi/180.0}
{
Surface{71};
}
new_entities[] = Extrude {{0,1,0},{0,0,0},-5*Pi/180.0}
{
Surface{71};
Layers{1};
Recombine;
};

Physical Surface("wedge0") = {71};
Physical Surface("wedge1") = {new_entities[0]};
Physical Surface("outlet") = {new_entities[4]};
Physical Surface("tunnel") = {new_entities[5]};
Physical Surface("inlet") = {new_entities[6]};
Physical Surface("duct") = {new_entities[2]};
Physical Surface("baffle") = {new_entities[7]}; // or 3

Physical Volume("AIR") = {1};
Point(1) = { 26.85209117 , -47.71562961 , 0 };
Point(1) = { 326.8521 , -47.7156 , 0 };

Do you see the difference?
I changed the digit number. I bring it down to 4 digit after 0. I rounded it up.
The digit number does matters. I didn't know that.
-> Check your mesh geometry and change the geometry digit down to 4 digit at least.

2. Check and change your setting.

Actually, I didn't use this solution to solve my problem but I saw someone who solve their problem with this way. I think in my case, I was pretty bad at first(mesh geometry digit problem). But, It it work for someone who has a light problem.

Quote:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.3.1 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

applicationClass pimpleFoam;

startFrom latestTime;

startTime 0;

endTime 1;

stopAt endTime;

deltaT 0.001;

writeControl adjustableRunTime;

writeInterval 0.01;

cycleWrite 0;

writeFormat binary; //<-KEEP binary

writePrecision 6; //<- Make it up to 12 or more if you want

writeCompression off;

timeFormat general;

timePrecision 6;

runTimeModifiable true;

adjustTimeStep yes;

maxCo 20;


// ************************************************** *********************** //
I think that's it for treating this kind of problem. If you face that error.
You may remember 2 things.
1.check mesh
2.check setting
Thank you

foadsf August 23, 2018 06:47
I had similar issue here and here and I solved by changing writePrecision in controlDict file from 6 to 7!

alex1001 December 8, 2019 11:07
Hi all,

I have a similar problem, receiving errors such as:
Code:
Either correct the patch or split it into planar parts
--> FOAM Warning :
    From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBuffers&)
    in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 70
    Wedge patch 'back' is not planar.
At local face at (2.063 0.090074 0.165) the normal (-0.043559 0.99905 -2.1156e-18) differs from the average normal (-0.043619 0.99905 -9.63e-20) by 3.7005e-09
Either correct the patch or split it into planar parts
--> FOAM Warning :
    From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBuffers&)
    in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 70
    Wedge patch 'back' is not planar.
At local face at (2.063 0.090074 0.175) the normal (-0.043559 0.99905 -2.1156e-18) differs from the average normal (-0.043619 0.99905 -9.63e-20) by 3.7005e-09
Either correct the patch or split it into planar parts
--> FOAM Warning :
    From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBuffers&)
    in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 70
    Wedge patch 'back' is not planar.
At local face at (2.063 0.090074 0.185) the normal (-0.043559 0.99905 -2.1156e-18) differs from the average normal (-0.043619 0.99905 -9.63e-20) by 3.7005e-09
Either correct the patch or split it into planar parts
and changing the writePrecision isn't helping.

This is occurring on a 2D axisymmetric mesh created using BlockMesh and extrudeMesh and only when the write format is ascii.

The errors don't happen when the writeFormat is binary and it runs perfectly fine. Unfortunately, I need the data in ascii format. I've tried using foamFormatConvert, but it churns out hundreds of these errors before the conversion, which is time consuming, messy, and leaves me suspicious of the results.

Is there any reason why it should only happen in ascii?

Many thanks,

Alex

I7aniel June 1, 2020 11:47
Quote:
Originally Posted by alex1001 (Post 751822)
Hi all,

I have a similar problem, receiving errors such as:
Code:
Either correct the patch or split it into planar parts
--> FOAM Warning :
    From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBuffers&)
    in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 70
    Wedge patch 'back' is not planar.
At local face at (2.063 0.090074 0.165) the normal (-0.043559 0.99905 -2.1156e-18) differs from the average normal (-0.043619 0.99905 -9.63e-20) by 3.7005e-09
Either correct the patch or split it into planar parts
--> FOAM Warning :
    From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBuffers&)
    in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 70
    Wedge patch 'back' is not planar.
At local face at (2.063 0.090074 0.175) the normal (-0.043559 0.99905 -2.1156e-18) differs from the average normal (-0.043619 0.99905 -9.63e-20) by 3.7005e-09
Either correct the patch or split it into planar parts
--> FOAM Warning :
    From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBuffers&)
    in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 70
    Wedge patch 'back' is not planar.
At local face at (2.063 0.090074 0.185) the normal (-0.043559 0.99905 -2.1156e-18) differs from the average normal (-0.043619 0.99905 -9.63e-20) by 3.7005e-09
Either correct the patch or split it into planar parts
and changing the writePrecision isn't helping.

This is occurring on a 2D axisymmetric mesh created using BlockMesh and extrudeMesh and only when the write format is ascii.

The errors don't happen when the writeFormat is binary and it runs perfectly fine. Unfortunately, I need the data in ascii format. I've tried using foamFormatConvert, but it churns out hundreds of these errors before the conversion, which is time consuming, messy, and leaves me suspicious of the results.

Is there any reason why it should only happen in ascii?

Many thanks,

Alex
Hey Alex,

i have a similar Problem, i created a 2D-mesh using blockMesh and converted it to a axis symetric mesh using makeAxialMesh.
I have the same error like you.

Did you find a solution?

Kind regards,

Daniel

dasith0001 August 20, 2021 00:21
Thank you very much Woo!!!

I was really frustrated with the same error till I found your post.
In increased the writePrision up to 12 and adjust the coordinate.

I think the trick is to set the all the coordinates to the same amount of decimal positions, even 0 to 0.00000

Thank you again,
Dasith


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