2D heat diffusion with convection boundary conditions

The is a follow up to my earlier question on heat transfer in a box of grain.

I observed that the plot from [C,h]= contourf(xx(:,:,g),yy(:,:,g),Tt(:,:,g)); interchanged the bottom side with the left side and the topside with the right. It seems that is the default setting for this command.

However, when I used contourf(x,y,T(:,:,g)) instead, the plot come out right but without contour labels.

I want a contour plot with lables.

What can I do to resolve this problem. I have spent weeks on the issue without success.

[darova]

Please attahc example code. Show the picture

[Roya Rajabi]

Use Transpose int he contour if you do not use meshgrid for gridding the domain.

and for label and having numbers on the lines use below:

contourf(x,y,(u)','ShowText','on')

ylabel('Y')

xlabel('X')