Is this the proper way to run a transient simulation on a thermal 3D FEM with the PDE toolbox?

3 次查看（过去 30 天）
Steven
Steven 2018-9-25
编辑： Steven 2018-9-27
How can I model a 3d FEM and run a transient simulation?
I've tried this so far and it doesn't seem to work
The real question is how do I run a 3d transient FEM? And view the result this doesn't work.
thermalmodel = createpde('thermal','transient');
gm = multicuboid(1,1,0.5,'ZOffset',0.5);
%if this doesn't work choose your own geometry
thermalmodel.Geometry = gm;
%%%%%%%%%%%%%%%%%%%%%%%GENERATE MESH %%%%%%%%%%%%%%%
% meshsize = 0.4;%mm
meshsize = 4;%mm
generateMesh(thermalmodel,'Hmax',meshsize/1000);
thermalmodel.Mesh
pdemesh(thermalmodel)
htc = vpa(25) *u.Watt/(u.m^2*u.Kelvin);
htc = rewrite(htc,u.Watt/(u.in^2*u.Kelvin));
htc = double(separateUnits(htc));
thermalBC(thermalmodel,'Face',1:thermalmodel.Geometry.NumFaces,...
'ConvectionCoefficient',htc,'AmbientTemperature',288.15);
thermalBC(thermalmodel,'Face',1,'Temperature',50+273);%bottom face
mybc = @(region,state) sin(350*state.time).^2;
thermalBC(thermalmodel,'Face',12,'Temperature',mybc);%top face
tfinal = 6;
tlist = 0:3:tfinal;
thermalIC(thermalmodel,0);
thermalmodel.SolverOptions.ReportStatistics = 'on';
result = solve(thermalmodel,tlist);
figure; pdeplot3D(thermalmodel)
pdeplot3D(thermalmodel,'XYData',T(:,end),...
'Contour','on','ColorMapData',results.Temperature);
title('Temperature in K')
colorbar
pdeplot3D(thermalmodel,'ColorMapData',results.Temperature);
axis equal
title(sprintf('Transient Temperature at Final Time ...
(%g seconds)',tfinal));

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Geometry and Mesh 的更多信息

标签

产品


版本

R2018a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by