hey i need your help!!

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rana zain 2020-10-14

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评论： rana zain 2020-10-14

I have a system can be described by the second order differential equation in 1, where h is the convective heat transfer coefficient, p is the perimeter (circumference) of the pin, k is the conductive heat transfer coefficient and Ac is the cross-sectional area.

I want to develop a numerical model by applying both a third order Runge Kutta method to the differential equation in equation 1. I want to do this on matlab.

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Answer 1

KSSV 2020-10-14

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It can be done both by writitng your own code or using inbuilt functions....

You canget analytical solution using syms, dsolve. Read about them.
You can use ode45 to use Runge-Kutta method using inbuilt functions.
You can search in file exchange/ gogole to get code, so that with few changes you can customise it to your case.