Can someone help me solve the following set of coupled equations Inline form: Display form: With initial conditions ; ; ranges from to . Take . needs to be interpolated with calculated pressure at every iteration (which I can handle with).

coupled Ordinary Differential Equations

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Arunkarthiheyan on 2 Dec 2025 at 7:44

Commented: Sam Chak on 2 Dec 2025 at 13:33

Can someone help me solve the following set of coupled equations

Inline form:

Display form:

With initial conditions

;

; r ranges from 0 to 30. Take

needs to be interpolated with calculated pressure at every iteration (which I can handle with).

Torsten on 2 Dec 2025 at 12:17

Edited: Torsten on 2 Dec 2025 at 12:19

What problems do you encounter when you try to use ode45 to solve ? "interp1" can be used for interpolation therein.

Sam Chak on 2 Dec 2025 at 13:33

If r can range from 0 to 30, then singularity will occur at

. Since both the numerator and denominator have division-by-zero terms, then

will become an indeterminate form. The response of the variable m will depend on the behavior of the function

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