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Transient natural convection and conjugate transients around a line heat source.

Author(s) : DULUC M. C., XIN S., LE QUÉRÉ P.

Type of article: Article

Summary

The transient natural convection in liquid nitrogen around a heated wire was studied experimentally and numerically. A thin bronze wire of 40 µm in diameter and 5.1 cm in length heated by Joule effect was used in experiments and the evolution of the wire temperature over time was measured through its electrical resistance. Numerical simulations of such flows were performed by using velocity-pressure formulation, spectral methods and the domain decomposition technique. Experimental data and numerical results were compared and showed that although the wire was extremely thin, its thermal inertia played an important role during early transients.

Details

  • Original title: Transient natural convection and conjugate transients around a line heat source.
  • Record ID : 2003-1177
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 46 - n. 2
  • Publication date: 2003/01

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