[student666]

Thermal baffles are useful to save meshing and computational time during pre-processing and solving, when you have heat transfer problems.

Let’s say I have a domain of 1x1x1 meters.
Inside I put a thin wall (thermalbaffles) to split the domain into two separated regions.
Let’s say this thin wall is a pipe of 1m length.
Two cases:
1 – pipe has outside diameter of 0.4m and 0.1m thickness.
2 – pipe has outside diameter of 0.4m and 0.005m thickness.

Would it possible for both cases to use thermalBaffles strategy for meshing? Or thin walls requires to keep a minimum ratio within dimensions?

In my example above, ratio between outside diameter of pipe and thickness are:
1 – 0.4m/0.1m = 4
2 – 0.4m /0.005m =80

These are extreme cases, just for example to understand.
I suppose that for case 1, if I want to analyze gradient of temperature inside the pipe thickness, it would be better to mesh this region separately. Is it the main and only difference?Are there any other points I have to care about, when I have to prepare my mesh?Are there computational limits on thin wall usage?

Regards.