Dear Hao.
There is no problem to define a moving mesh: for instance you can do:
-----------------
vector a = (0,0,0);
vector b = (10,1,1);
vector n = (10,2,2);
mesh m = structured(n,a,b);
double dt = 0.2;
double t = 0;
for (double i=0; i<10; ++i) {
save(vtk,"mesh.00".i,m);
t = t+dt;
a = a + (sqrt(t),0,0);
m = structured(n,a,b);
}
-----------------
Does this answers your question?
Best regards,
Stéphane.
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