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Unable to resolve the name results.NodalSolution.

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I am using R2020b. While solving a PDE with myufunction for updating the boundary condition at each iteration, I keep getting the error message 'Unable to resolve the name results.NodalSolution'. Any help is welcome.
  3 Commenti
Shreya George
Shreya George il 26 Gen 2021
model=createpde;
gm=importGeometry(model,'tankdimension3d.stl');
pdegplot(gm,'FaceLabels','on','FaceAlpha',0.5)
phi=zeros(25,205);
for i=1:25
applyBoundaryCondition(model,'dirichlet','Face',6,'u',phi(i,:));
applyBoundaryCondition(model,'dirichlet','Face',1,'u',0);
applyBoundaryCondition(model,'neumann','Face',2:5,'g',0.00484);
myufunction = @(location,state)phi(i,:);
applyBoundaryCondition(model,'dirichlet','Face',6,...
'u',myufunction,...
'Vectorized','on');
specifyCoefficients(model,'m',0,'d',0,'c',1,'a',0,'f',0);
generateMesh(model,'Hmax',1);
result= solvepde(model);
u=results.NodalSolution;
k1=0.2*0.01505;
phi(i+1)=phi(i)+k1;
end
pdeplot3D(model,'ColorMapData',u)
Shreya George
Shreya George il 26 Gen 2021
This was the code for the stl file
x=[-5
5
5
-5
-5
5
5
-5];
y=[-2
-2
2
2
-2
-2
2
2];
z=[-5
-5
-5
-5
0
0
0
0];
v = [x(:) y(:) z(:)];
V=v*1000;
faces=zeros(12,3);
faces(1,:)=[1, 2, 3];
faces(2,:)=[1, 3, 4];
faces(3,:)=[1, 2, 6];
faces(4,:)=[1, 6 ,5];
faces(5,:)=[2, 3, 7];
faces(6,:)=[2, 7, 6];
faces(7,:)=[3, 4, 8];
faces(8,:)=[3, 8, 7];
faces(9,:)=[4, 5, 8];
faces(10,:)=[4, 1, 5];
faces(11,:)=[5, 6 7];
faces(12,:)=[5, 7, 8];
T=[1 2 3
1 3 4
1 2 6
1 6 5
2 3 7
2 7 6
3 4 8
3 8 7
4 5 8
4 1 5
5 6 7
5 7 8];
TR=triangulation(T,v);
a = 1;
shp = alphaShape(x,y,z,a)
[faces, v] = boundaryFacets(shp);
fv.faces = faces;
fv.vertices = v;
trisurf(T,x,y,z);
stlwrite(TR,'tankdimension3d.stl')

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Risposta accettata

Ravi Kumar
Ravi Kumar il 26 Gen 2021
You have a typo. It should be u=result.NodalSolution; not u=results.NodalSolution;
Regards,
Ravi

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