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Heat flux, often denoted as \( q \), is the rate of heat transfer per unit area through a surface. It quantifies the amount of thermal energy that flows through a given surface area in a specific direction, typically expressed in units of watts per square meter (W/m²). Heat flux can occur through conduction, convection, and radiation: 1. **Conduction:** Involves heat transfer through materials due to temperature gradients.

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  1. Thermodynamic properties
  2. Thermodynamics
  3. Dynamical systems
  4. Fields of mathematics
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