Transient Heat Transfer
Transient heat transfer analysis predicts the outcome when temperatures on a part
vary over time. The generation or removal of heat over time causes a part's
materials to expand or contract. Such changes produce stress and deflection
that may cause otherwise suitable parts to fail. For example, the friction
between sewing machine parts gradually creates heat that may lead to
excessive stress and subsequent part failure. Changes in a part's
temperature profile can therefore reveal its potential for failure.
Engineers specify material properties, any steady-state heat transfer boundary
conditions, known initial temperatures and time-dependent heat flow. They
can stipulate transient parameters such as the timestep and use variable heat transfer boundary elements, which control temperature at specific points.
They can apply multiple load curves having different arrival
times and heat rate loadings at specific points in conjunction with other thermal loads. Variable material properties are automatically handled.
TYPICAL APPLICATIONS
- Annealing
- Brake system design
- Cooling/heating system design
- Electronic component design
- Exhaust manifold design
- Forced convection
- Friction analysis
- Headlight design
- Heat exchanger simulation
- Heat pipes
- HVAC analysis
- Joule heating
- Lighting analysis
- Mold design
- Quenching
- Solar cell design
- Thermal loss study
- Thermal stress analysis
- Weld design
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