Solve PDE for Diffusion model

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Nithi Russamee
Nithi Russamee il 1 Lug 2014
Please support me about solving PDE for diffusion model. I have read pde solver from MATLAB help. I's quite new user for MATLAB. The equation as shown below.
(du/dt) = (D/r^2)*(d/dr(r^2du/dr))
R = 0.0015 D = 6.19E-08
initial condition u(r,0) = 0.13
boundary condition (du/dr) at r = 0,t = 0; u(r=R,t) = 0.005
Thank you for your kind support this problem
Best Regards, Nithi

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