How to write bvp4c code for coupled non-linear equation

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

Answer 1

[Torsten]

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".

[Komal Goyal]

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]

@Torsten requesting you to please see that bessel function equation once on my profile.

Sorry for troubling.

And, Thanking for help.

[Torsten]

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]

@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