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heat pipe modelling
Posted Aug 15, 2017, 9:44 a.m. EDT Heat Transfer & Phase Change Version 5.2 0 Replies
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I am modelling the heat pipe as a material of very high effective thermal conductivity (10 000 W/mK). This works when fluid in collector is flowing.
In stagnation, heat starts flowing in the simulation in the opposite direction (towards evaporator). The heat pipe used can conduct heat only in the direction of its condenser and not the other way around. I have tried defining evaporator end of heat pipe as adiabatic to stop this from occuring. However this does not solve the problem. Anisotropic material properties can only define the property in both senses of any direction and are not very helpful.
Is there any tip or trick to set the thermal conductivity in a specific sense of a direction (0 in the negative x sense and 10 000 in the positive x sense)? or maybe to model heat pipes more accurately in comsol?
Hello Mohamad Haidar
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