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Semi-empirical modeling of turbulent fluid flow and heat transfer in porus media.

Modélisation semi-empirique des écoulements et des transferts dans un milieu poreux en régime turbulent.

Author(s) : FLICK D., LESLOUS A., ALVAREZ G.

Type of article: Article, IJR article

Summary

The model allows the prediction of turbulent fluid flow and heating transfers inside a stack of obstacles, which is considered as a porous media. The heat transfer intensity between fluid and particles is related to the local values of velocity and turbulence intensity. The turbulent kinetic energy is predicted by a transport equation inspired from literature, which can also be used for two-dimensional flow patterns. Model parameters were experimentally identified for a stack of spheres with a void fraction of 34%. Laser anemometer measurements were performed upstream the from stack. Heat transfer coefficients were measured at different positions in the stack and for different flow rates. The standard error between measured and predicted coefficients is 5%.

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Pages: 349-359

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Details

  • Original title: Modélisation semi-empirique des écoulements et des transferts dans un milieu poreux en régime turbulent.
  • Record ID : 2003-1720
  • Languages: French
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 26 - n. 3
  • Publication date: 2003/05

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