Thermal Simulation in a Concrete Pipe doubt ..

Hi guys I'm working on a few sample problems for my FEA class project and encountered a difficulty..

I have a question :

I'm using Soildworks to simulate thermal simulation on a rectangular concrete pipe( 2D heat flow) designed to carry fluid at the square cavity located at the center of the rect pipe...

I have applied BCs : Temperature at the cavity boundary

Convection on the outer boundary of the pipe with ambient temp 20 degree Celcius.

I was able to plot the temp distribution and heat flux, but how do I calculate temp at the outside surface of the pipe? (i.e At the outer boundary of the pipe ) ?

thanks in advance..!

SolidworksSimulation