Using PDE Mode in COMSOL to Model Temperature Change

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SUMMARY

The discussion focuses on utilizing the PDE mode in COMSOL Multiphysics to model temperature changes in materials, specifically copper transitioning from 6 Kelvin to 300 Kelvin. Users are encouraged to input custom equations to replicate results obtained from the heat transfer package. A common issue encountered is the appearance of a zero matrix, which can hinder the modeling process. Participants seek guidance on setting boundary conditions and troubleshooting the zero matrix error.

PREREQUISITES
  • Familiarity with COMSOL Multiphysics software
  • Understanding of Partial Differential Equations (PDEs)
  • Knowledge of heat transfer principles
  • Experience with boundary condition settings in simulation software
NEXT STEPS
  • Explore the COMSOL Multiphysics documentation on PDE mode usage
  • Learn how to define and apply boundary conditions in COMSOL
  • Investigate methods for diagnosing and resolving zero matrix errors
  • Study examples of custom equations in heat transfer simulations
USEFUL FOR

Engineers, researchers, and students involved in thermal analysis, particularly those using COMSOL Multiphysics for modeling temperature changes in materials.

mherna48
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Hi everyone,

Can anyone explain how to use the PDE mode in COMSOL Multiphysics? I used the heat transfer package to model a piece of copper undergoing a change in temperature from 6 Kelvin to 300 Kelvin. Now I want to check to see that I can get the same results with my own equations. I don't even know how I would set the boundaries conditions.
 
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Hi everyone,

I kind of figured out where to input my simple equation, but I keep getting an error due to a zero matrix. How do I find where this zero matrix is located?
 

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