Hello,
I am new to COMSOL, and I am modelling a one-dimensional unsteady state heat transfer process across a solid cylinder, I would like to learn about how the temperature distribution changes with time.
Is it appropriate that I use a 2D asymmetric model for studying a 1D heat transfer process in a 3D solid?
The variables, such as specific heat, thermal conductivity, etc, are temperature dependent. Do I have to define the variable T (Temperature) at the very first beginning (parameters or global variables)? How can I extract the Temperature results from the pde solver? I defined a temperature dependent specific heat as global, but I was still not able to call it when I am defining the properties of the material. How can I deal with it？ Are there any ways that I can define a variable as a piecewise function? Although I define it as a piecewise function, it was still not working. What can I do if I would like to use the parameter that I defined in determing the interval for the piecewise function?
Thank you very much! I am really new to COMSOL, and I am really eager to learn more about it. I'd appreciate all the help that you provide for me!
Best, Shengyue Shan