Can I use the PDEPE solver to solve the following dimensionless Transient PFR PDE? If not, what method do you reconmend?

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Roger Vegeta
Roger Vegeta 2020-10-21
编辑： David Goodmanson 2020-10-23
How do I expresss the last term of the PDE in the code?

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David Goodmanson
David Goodmanson 2020-10-22
Hello Rogelio,
For psi(t,eta) I assume that the boundary conditions are
psi(0,eta) = 0 for all eta
and
d psi(t,eta) / deta | = 0 for all t
| eta = 0
and a solution is intended for t >= 0. In that case a solution that fits the bc's is
psi(t,eta) = 1 -exp(-t/lambda)
i.e. no eta dependence at all.

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