Module 1 : Conduction
Lecture 1 : Introduction and Heat Diffusion Equation
 
Conduction-Fourier's Law
  • Fourier’s law is based on experimental evidence
  • Heat flux is a vector quantity. For the ‘x’ direction:
 
(1.4)
  • For all directions in cartesian frame:
 
(1.5)
Fourier's Law (contd.)
  • Notice that −k∇T is independent of frame of reference
  • Use mathematical transformations to obtain the equation in other frames of reference