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Propagation of thermal waves with lateral heat transfer.

Author(s) : SAHOO R. K.

Type of article: Article

Summary

The wave nature of heat propagation in a one-dimensional semi-infinite medium with lateral convective heat transfer is investigated by solving the hyperbolic heat conduction equation in the longitudinal direction. The results for a unit heat flux condition at the boundary are compared with those obtained from parabolic heat conduction. This reveals that the classical heat diffusion theory predicted by parabolic heat conduction significantly underestimates the magnitude of the temperature and heat flux in thermal wave propagation. When the dimensionless lateral heat transfer, known as the wave shape factor, is equal to unity, the thermal wavefront which travels through the medium at a finite speed decays exponentially along its path of travel while retaining the shape of the input wave.

Details

  • Original title: Propagation of thermal waves with lateral heat transfer.
  • Record ID : 1995-0092
  • Languages: English
  • Source: Cryogenics - vol. 34 - n. 3
  • Publication date: 1994/03

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