Thermal Analysis Module

Pole face temperature distribution in a 6-pole synchronous generator rotor

Pole face temperature distribution in a 6-pole synchronous generator rotor

The Thermal Analysis Module that can be used to calculate temperature, heat-flux, and thermal-gradient fields due to electromagnetic heating or external heat sources.

The Thermal Analysis Module (thermal module) computes the steady state or transient temperature, heat-flux, and thermal-gradient fields due to electromagnetic heating or external heat sources. Thermal properties, such as the conductivity tensor or specific heat, and heat source density can be specified as a function of position, and can be temperature dependant (leading to a non-linear analysis).

The thermal module may be used in stand-alone mode with the user defining the distribution of heat input, or it can be used in a multi-physics simulation with other Opera solution modules providing the distribution of heat. It is possible to include multiple heat sources (for example eddy current heating and iron losses in a motor) in a single calculation. The thermal module will calculate the temperature distribution in the model, which may modify the electromagnetic solution (if material properties are temperature dependent). Stress induced by thermal expansion can be analysed using the 3d Stress Analysis Module. The deformation caused can be used in subsequent thermal and electromagnetic simulations.

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Applications

  • Motors
  • Generators
  • Charged particle devices
  • Electromagnetic brakes
  • Actuators
  • Transducers
  • Induction heating
  • Induction welding
  • Cool down of superconducting magnets