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Moisture Migration in Soil
Posted 24 févr. 2018, 05:05 UTC−5 Heat Transfer Version 5.3a 0 Replies
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Hello everyone! I am not that familiar with COMSOL and I would appreciate it if someone could point me in the right direction.
My goal is to model the temperature behavior of an underground heating tube. This means the output of the simulation should be the temperature of the tube and its surroundings. The challenge is moisture migration. The soil around the tube contains moisture which tends to move away as the tube heats up its surroundings. I would like to know how to best model this with COMSOL.
I think the Heat Transfer in Porous Media physics could be a starting point. Once you specify a Porous Medium, you have the Thermodynamics, Fluid setting. Should the fluid type be set to moist air? Is this enough to model moisture migration? Also, what is meant by Volume Fraction in the section Immobile Solids?
Hello B J
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