The discussion revolves around the behavior of heat flux in a simulation involving two concentric cylinders separated by an insulating material, specifically focusing on the role of the kappa factor in the heat equation. Participants are exploring the relationship between the thermal conductivity (kappa) of the insulator and the resulting heat flux, as well as the evolution of temperature within the system.
Participants express uncertainty regarding the relationship between kappa and heat flux, with no consensus on why the heat flux remains unchanged despite variations in kappa. The discussion remains unresolved as participants seek further clarification and detail.
Limitations include a lack of detailed documentation of the simulation analysis and potential missing assumptions regarding the system's configuration and boundary conditions.
What exactly is kappa, and what, more precisely, is the particular problem you are trying to solve? Also, documenting some of your analysis might be helpful.George444fg said:I am doing a project, actually it is a simulation. And we aim to determine the spatial and heat flux evolution of the system. The system consists of two concentric cylinders separated by an insulating material. I change the value of kappa of the insulator but the heat flux remains always the same, despite the change in the evolution of the temperature. Why this is happening?
Like I said, let's see what you did in detail.George444fg said:I mean it is the equation j_q=-k(r)\nabla \cdot T. I use the heat equation. The point being that no matter the values kappa gets the heat flux is always the same