PDE Toolbox, Parabolic Heat Equation (2-D): How do I assign a start temperature (T=1000 K) to the whole rectangular area?

The rectangular area depicts a thin strip with the temperature T = 1000 K. The bottom line of the rectangle transfers heat by convection. The other lines fullfill the Neumann condition with the coefficients g,q = 0. There's no heat source within the rectangle. I would be very happy for any help.

Cheers Arne

Answer 1

[Bill Greene]

I assume you are trying to solve a transient heat transfer problem using the pdetool GUI and have set Option/Application to Heat Transfer and PDE/PDE Specification to Parabolic?

Then, you can set the initial temperature to 1000 by entering that value in the U(t0) box on the form Solve/Parameters. You will probably also want to change the Time entry on this form to specify the time interval of the transient analysis and how often you want to save solutions.

Bill

[Arne Mendel]

Ohh so easy:). Thanks!!!