{"id":3290,"date":"2024-04-24T22:29:13","date_gmt":"2024-04-24T14:29:13","guid":{"rendered":"http:\/\/81.70.49.155\/?p=3290"},"modified":"2024-04-24T22:29:13","modified_gmt":"2024-04-24T14:29:13","slug":"comsol-with-matlab%e6%b5%8b%e8%af%95%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"http:\/\/81.70.49.155\/?p=3290","title":{"rendered":"Comsol With MATLAB\u6d4b\u8bd5\u4ee3\u7801"},"content":{"rendered":"

\n\t1\uff0c\u8981\u5728MATLAB\u4e2d\u8bbe\u7f6eComsol\u7684\u8def\u5f84\uff1a\u6bd4\u5982F:\\software\\workSoftware\\COMSOL55\\Multiphysics\\mli\n<\/p>\n

\n\t2\u3001\u5728Comsol launcher\u4e2d\u6253\u5f00COMSOL Multiphysics Server<\/span>\n<\/p>\n

\n\t3. \u8bbe\u7f6eCOMSOL Multiphysics Server\u7684<\/span>\u7528\u6237\u540d\u5bc6\u7801<\/span><\/span>\n<\/p>\n

\n\t4\u3001\u5728matlab\u547d\u4ee4\u884c\u8f93\u5165<\/span>mphstart<\/span>\n<\/p>\n

\n\t
\n<\/span>\n<\/p>\n

\n\t\u6d4b\u8bd5\u7ed3\u679c\u4e0e\u4ee3\u7801\u5982\u4e0b\uff1a<\/span>\n<\/p>\n

\n\t $\"\"$
\n<\/span>\n<\/p>\n

\n\timport com.comsol.model.util.* <\/span>
\n%
\nmodel = ModelUtil.create('Model');
\n%\u5168\u5c40\u53c2\u6570
\nmodel.param.set('L','9[cm]','Length of the busbar');
\nmodel.param.set('rad_1','6[mm]','Radius of the fillet');
\nmodel.param.set('tbb','5[mm]','Thickness');
\nmodel.param.set('wbb', '5[cm]','Width');
\nmodel.param.set('mh','6[mm]','Maximum element size');
\nmodel.param.set('htc','5[W\/m^2\/K]','Heat transfer coefficient');
\nmodel.param.set('Vtot','20[mV]','Applied electric potential');<\/p>\n

geom1 = model.geom.create('geom1', 3);
\n%\u51e0\u4f55
\nwp1 = geom1.feature.create('wp1', 'WorkPlane');%\u5de5\u4f5c\u5e73\u9762
\nwp1.set('quickplane', 'xz');
\nr1 = wp1.geom.feature.create('r1', 'Rectangle');%\u77e9\u5f62
\nr1.set('size', {'L+2*tbb' '0.1'});
\nr2 = wp1.geom.feature.create('r2', 'Rectangle');
\nr2.set('size', {'L+tbb' '0.1-tbb'});
\nr2.set('pos', {'0' 'tbb'});
\ndif = wp1.geom.feature.create('dif', 'Difference');%\u5dee\u96c6
\ndif.selection('input').set({'r1'});
\ndif.selection('input2').set({'r2'});
\ngeom1.run;
\nfil1 = wp1.geom.feature.create('fil1', 'Fillet');%\u5706\u89d2
\nfil1.selection('point').set('dif(1)', 3);
\nfil1.set('radius', 'tbb');
\nfil2 = wp1.geom.feature.create('fil2', 'Fillet');
\nfil2.selection('point').set('fil1(1)', 6);
\nfil2.set('radius', '2*tbb');
\next1 = geom1.feature.create('ext1', 'Extrude');%\u62c9\u4f38
\next1.selection('input').set({'wp1'});
\next1.set('distance', {'wbb'});
\nmphgeom(model)
\nwp2 = geom1.feature.create('wp2', 'WorkPlane');
\nwp2.set('planetype', 'faceparallel');
\nwp2.selection('face').set('ext1(1)', 8);
\nc1 = wp2.geom.feature.create('c1', 'Circle');%\u5706
\nc1.set('r', 'rad_1');
\next2 = geom1.feature.create('ext2', 'Extrude');%\u62c9\u4f38
\next2.selection('input').set({'wp2'});
\next2.set('distance', {'-2*tbb'});
\nwp3 = geom1.feature.create('wp3', 'WorkPlane');
\nwp3.set('planetype', 'faceparallel');
\nwp3.selection('face').set('ext1(1)', 4);
\nc2 = wp3.geom.feature.create('c2', 'Circle');
\nc2.set('r', 'rad_1');
\nc2.set('pos', {'-L\/2+1.5e-2' '-wbb\/4'});
\ncopy = wp3.geom.feature.create('copy', 'Copy');
\ncopy.selection('input').set({'c2'});
\ncopy.set('disply', 'wbb\/2');
\next3 = geom1.feature.create('ext3', 'Extrude');
\next3.selection('input').set({'wp3.c2' 'wp3.copy'});
\next3.set('distance', {'-2*tbb'});
\ngeom1.run;<\/p>\n

sel1 = model.selection.create('sel1');%\u9009\u62e9\u8fd9\u90e8\u5206\u4e3aTi..
\nsel1.set([2 3 4 5 6 7]);
\nsel1.label('Ti bolts');
\nmphviewselection(model,'sel1');
\n%\u6750\u6599
\nmat1 = model.material.create('mat1');
\nmat1Def = mat1.materialModel('def');
\nmat1.materialModel('def').set('electricconductivity', {'5.998e7[S\/m]'});
\nmat1.materialModel('def').set('heatcapacity','385[J\/(kg*K)]');
\nmat1.materialModel('def').set('relpermittivity', {'1'});
\nmat1.materialModel('def').set('density','8700[kg\/m^3]');
\nmat1.materialModel('def').set('thermalconductivity',{'400[W\/(m*K)]'});
\nmat1.label('Copper');
\nmat2 = model.material.create('mat2');
\nmat2.materialModel('def').set('electricconductivity',{'7.407e5[S\/m]'});
\nmat2.materialModel('def').set('heatcapacity','710[J\/(kg*K)]');
\nmat2.materialModel('def').set('relpermittivity',{'1'});
\nmat2.materialModel('def').set('density','4940[kg\/m^3]');
\nmat2.materialModel('def').set('thermalconductivity',{'7.5[W\/(m*K)]'});
\nmat2.label('Titanium');
\nmat2.selection.named('sel1');
\n%\u7269\u7406\u573a
\nht = model.physics.create('ht', 'HeatTransfer', 'geom1');%\u56fa\u4f53\u4f20\u70ed
\nhf1 = ht.feature.create('hf1', 'HeatFluxBoundary', 2);
\nhf1.set('HeatFluxType', 'InwardHeatFlux');
\nhf1.selection.set([1:7 9:14 16:42]);
\nhf1.set('h', 'htc');
\nmphgeom(model,'geom1','facemode','off','facelabels','on')
\nec = model.physics.create('ec','ConductiveMedia', 'geom1');%\u7535\u6d41
\npot1 = ec.feature.create('pot1','ElectricPotential', 2);
\npot1.selection.set(43);
\npot1.set('V0', 'Vtot');
\ngnd1 = ec.feature.create('gnd1', 'Ground', 2);
\ngnd1.selection.set([8 15]);
\nemh = model.multiphysics.create('emh','ElectromagneticHeatSource','geom1',3);%\u591a\u7269\u7406\u573a-\u7535\u78c1\u70ed\u6e90
\nemh.selection.all;
\nemh.set('EMHeat_physics', 'ec');
\nemh.set('Heat_physics', 'ht');
\n%\u7f51\u683c
\nmesh = model.mesh.create('mesh', 'geom1');
\nsize = mesh.feature('size');
\nsize.set('hmax', 'mh');
\nsize.set('hmin', 'mh-mh\/3');
\nsize.set('hcurve', '0.2');
\nftet = mesh.feature.create('ftet', 'FreeTet');
\nmesh.run;
\nmphmesh(model)
\n%\u7814\u7a76
\nstd = model.study.create('std');
\nstat = std.feature.create('stat', 'Stationary');
\nModelUtil.showProgress(true);
\nstd.run;
\n%\u7ed3\u679c\u7ed8\u56fe
\npg = model.result.create('pg', 'PlotGroup3D');
\nsurf = pg.feature.create('surf', 'Surface');
\nsurf.set('expr', 'T');
\nsurf.set('rangecoloractive', 'on');
\nsurf.set('rangecolormin', '322.9');
\nsurf.set('rangecolormax', '323.5');
\nmphplot(model,'pg','rangenum',1)
\ndata = model.result.export.create('data', 'Data');
\ndata.setIndex('expr', 'T', 0);
\ndata.set('filename','filepath\\Temperature.txt');%\u4fdd\u5b58mph
\ndata.run;
\nmphsave(model,'<path>\/busbar.m');%\u4fdd\u5b58matlab .m\u6587\u4ef6<\/p>\n

<\/span>\n<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"