Request for help for Finite Difference code for Matlab

[MrJoeT]

Hi,

I have a project for heat transfer, I know what I want to do but I don't know how to do it on Matlab.

My assignment is attachment 1 - project.pdf

The first part I have done (attachment 2 - computer project.pdf)

I know I should be using the Matrix Inversion Method, but as I need to input a 130 x 130 matrix I cannot do it manually. I have only used Matlab a handful of times so would really appreciate some help.

What I need is a way of using Matlab to input the matrix elements for me, does anyone know how I would go about this? Or another way of solving this problem.

Thanks in advance.

Joe

 

[mmwave]

Hello Joe,

Thank you for reaching out with your question about using Matlab for your heat transfer project. I am happy to assist you with finding a solution. First, let me commend you on completing the first part of your project. That is a great start!

To input a 130 x 130 matrix in Matlab, you can use the "input" function. This function allows you to enter data into a matrix by specifying the number of rows and columns. For example, if you want to create a 3 x 3 matrix, you would use the following code:

A = input('Enter a 3 x 3 matrix: ');

You can then enter the values for each element of the matrix when prompted by Matlab. This method can be used for any size matrix, including your 130 x 130 matrix.

Alternatively, you can also use the "zeros" function to create a matrix of a specific size and then use a loop to input the values for each element. This method may be more efficient for larger matrices.

I hope this helps you with inputting your matrix elements. If you have any further questions, please don't hesitate to ask. Good luck with your project!

 

[oswaler]

Dear Joe,

Thank you for reaching out for help with your Finite Difference code for Matlab. It sounds like you have a clear understanding of what you want to achieve in your heat transfer project, but are struggling with the technical implementation in Matlab.

First, I would recommend reviewing the Matlab documentation and tutorials to familiarize yourself with the program and its capabilities. Additionally, there are many online resources and forums where you can find step-by-step guides and examples for using Matlab for heat transfer simulations.

In terms of inputting a large matrix, Matlab has built-in functions and commands for creating and manipulating matrices. One option is the "rand" function, which can generate a matrix of random numbers within a specified range. You can also use the "for" loop to iterate through the matrix elements and assign specific values based on your heat transfer equation.

I would also suggest breaking down the problem into smaller steps and testing each step separately before attempting to solve the entire project. This will help you identify any errors or issues and make it easier to troubleshoot.

I hope this helps and wish you the best of luck with your project. Don't hesitate to reach out if you need further assistance.

Best,