How to write bvp4c code for coupled non-linear equation

2023 2 3
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更新时间：2023 2 4
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I am not able to get, how to this ccoupled non-linear ODEs for bvp4c solver. Can anyone please help me out.
Thanking you in advance
A is constant, B is constant

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回答（1 个）

Torsten
Torsten 2023-2-3
移动：Torsten 2023-2-3

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Insert T'(y)+T(y)+A instead of T''(y) in the expression for C''(y).
Are A and B nonlinear expressions ? If they are simply constants as they seem to be, your system is linear and can easily be solved analytically. Use "dsolve".

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Komal Goyal
Komal Goyal 2023-2-3
Okay @Torsten sir, I will try to write my code in that way. No sir, Its a non-linear coupled ODE, and I am trying to solve that using bvp4c, since a got a doubt about how to substitue that second order DE in another second order DE, thats wht I use that dummy equation.
Thanking you sir for your help.
Highly Appreciable
Komal Goyal
Komal Goyal 2023-2-3
@Torsten requesting you to please see that bessel function equation once on my profile.
Sorry for troubling.
And, Thanking for help.
Torsten
Torsten 2023-2-3
Sorry, no.
The code for the 4-equations model with interface condition should suffice for a transfer on your own to the Bessel function model.
If you have specific questions, you can come here and ask.
Komal Goyal
Komal Goyal 2023-2-4
@Torsten, Thanking you sir, for reply. Actually that code was almost correct some syntax error, it was showing, which I am not able to capture. If you will suggest any changes, I will proceed accrodingly.
Thank you

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