I am working in a triangular enclosure. I am facing the difficulty to treat the boundary condition at the intersecting point of hot and cold wall. Any suggestion would be great.
Ahmad Bakir: For solving those systems of equations, we don't need the values of the corner points, which is true. But for computing the Nusselt number, we need the values at the corner points. If you have any resources regarding the implementation of the heat transfer problem using the finite difference method, please suggest me. If you could share any code, that would be great, and it would be very kind of you. Thank you for getting back to me.