- #1
nazmulislam
- 21
- 0
Hi,
I want to solve the following diffusion equation:
(d/dt) C(r,z,t)=D*∇^2 C(r,z,t)
where C is the concentartion and D is the coefficient of diffusivity (constant)
with initial condition C(r,z,0)=C0 (constant)
and boundary condition dc/dr=0 at r=0; (dc/dz) at z=-L equal to (dc/dz) at z=L
where I have considered axisymmetric tube of length L.
Can anybody help to solve the above mentioned problem for the concentration C?
I want to solve the following diffusion equation:
(d/dt) C(r,z,t)=D*∇^2 C(r,z,t)
where C is the concentartion and D is the coefficient of diffusivity (constant)
with initial condition C(r,z,0)=C0 (constant)
and boundary condition dc/dr=0 at r=0; (dc/dz) at z=-L equal to (dc/dz) at z=L
where I have considered axisymmetric tube of length L.
Can anybody help to solve the above mentioned problem for the concentration C?