Hello,
As part of my PhD research, I am simulating in 2D the cracking of an object and need to model the heat evacuation in the cracks, represented as a heat flux Φ (in W/m^2). However, the software I am using does not allow me to directly impose this flux. The only available option is to apply a negative volumetric heat source on the nodes along the crack.
My question is: How can I convert this surface heat flux (Φ) into a volumetric heat source to be applied on nodes, knowing that nodes themselves have no volume?
Thank you for your ideas and suggestions!
The summation of those nodes will surely form a volume, or at least surface area; try to build on this idea if there is no other choice.
Which software are you using?
Good luck
Hello, and thank you for your response!
I use LMGC90, which is software developed in my laboratory in France.
I will try to transform the volumetric source into a contribution in the nodal flux vector.
Thank you again!
To convert the surface heat flux (Φ) into a volumetric heat source for application on nodes, you'll need to account for the area over which the flux is applied and the discrete nature of the nodes. Here's one way you can approach it:
Steps:
This approach assumes a relatively uniform distribution of the heat flux along the crack and approximates the volumetric heat source based on the size of the mesh. The accuracy of this approximation depends on the mesh resolution and how closely the crack is represented in your model.
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