Can someone please help me with cfd?

[Torsten]

If you have problems with your code, we might be able to help you. But it should be self-evident that we won't write the code for you.

[discreet]

the problem im facing is how to proceed after initializing the different conditions, im not looking for the code, i just want to know the step by step approach

[Torsten]

If you don't know how to proceed: there are dozens of codes in the internet that solve the "unsteady heat equation" using MATLAB. Just make a google search.

E.g

http://www.math.toronto.edu/mpugh/Teaching/AppliedMath/Spring99/heat.html

[discreet]

Thanks