What if I want to know energy dissipation to a specific boundary

Project Support
1

I have run a simulation about the sealed domain region heat-transform issue…

Yet i have the result from it as the figure shows

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image1090×727 42.1 KB

I want to know if simscale provide a function to calculate a specific part (pannels on ceiling) of boundary 's energy absorbtion.

I have read the following article but ,Since there is no inlet flow treat the area as a isolated system may not work.

Thank you for the support!

The project link is here:

Best Wishes

2

Hey there, and thanks for using the forum!

Sorry for the late response, here is some suggestion.

Currently it is not possible to compute the heat exchange through a wall. This feature is in our roadmap and should be released later this year.

In the meantime, there is an approximated way you can use to compute the heat transfer through the wall:

  1. Measure the temperature on the inside and outside faces. This can be done with an average surface data result control item.
  2. Compute the mean temperature drop across the wall.
  3. From the temperature drop, you can compute the heat transfer rate as:

Q = k * A * dT

Where:

Q = Heat transfer rate, Watts
k = Wall material conductivity, Watts per meter per Kelvin
A = surface area of the wall, squared meters
dT = Temperature drop across the wall, Kelvin

This methodology is precise if the temperature drop is rather constant across the surface of the wall. If there is too much variation, then it is less accurate.

3

Dear sir， thanks for your kindly reply.

I think k is watts per square meter in your formula right?

Best Wishes