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Stokes-Darcy-Coupling

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Hy!

I have a problem concerning equation based modeling. I want to solve the following system of coupled nonlinear differential equations

p''(x)=A*p(x)/ln(1/r(x))
r'(x)=-B*p(x)/(r(x)*ln(1/r(x))

with the BC's:

p(0)=2
p(1)=1
r(0)=1

Unfortunately I don't know how to implement this system correctly. Can anybody give me an advice?
Thanks in advance.

0 Replies Last Post 24.05.2014, 08:49 GMT-4
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Hello Christian Marschik

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