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I am try to set Flux Boundary Condition inmport at x =0 and export from Rectangular at x=1 on other face of Rectangular by using NeumannValue=u[t, X] and the other faces is closed and set NeumannValue[0] for the other faces, but it does not...
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like this code(Graphics3D[ Table[Style[Sphere[RandomInteger[10, 3]], Opacity[0.5]], 100]]) but i want the same volume of above Parallelepiped and i want to change number of atoms with time to be every one minute one atom and after 240 minutes the...