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Thread Subject: PDE in spherical Coordinates

Subject: PDE in spherical Coordinates

From: Chem IITKGP Chaudhary

Date: 7 Nov, 2009 11:08:01

Message: 1 of 2

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Hi

I am trying to solve a group of 5 pdes which have time and radius as independent variables. There is theta and phi symmetry. But each equation has a source term. How do I go about it? I tried the pde tool box but there I can only use the cylindrical and cartesian coordinates?
I am beginner in MATLAB. Plz help

Subject: PDE in spherical Coordinates

From: Torsten Hennig

Date: 7 Nov, 2009 11:58:56

Message: 2 of 2

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> Hi
>
> I am trying to solve a group of 5 pdes which have
> time and radius as independent variables. There is
> theta and phi symmetry. But each equation has a
> source term. How do I go about it? I tried the pde
> tool box but there I can only use the cylindrical and
> cartesian coordinates?
> I am beginner in MATLAB. Plz help

This is a system of 5 pdes in one space dimension.
By setting m=2 in MATLAB's 'pdepe', you can solve in
spherical coordinates. Also source terms can be
prescribed in the s-array.
See whether the structure of your equations fits in
the required form for 'pdepe'.

Best wishes
Torsten.

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