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Comparison of numerical predictions and experimental measurements of ventilation in a room.

Author(s) : XU J., LIANG H., KUEHN T. H.

Summary

Two-dimensional numerical simulations and experimental measurements of turbulent air flow in a ventilated room with ceiling slot air supply and return are compared. The room is operated isothermally with the walls and supply air at the same temperature. Experimental results of time averaged velocity and turbulence characteristics in the room and near the wall boundaries are presented. Turbulence kinetic energy models (high Reynolds number model with wall function and three low Reynolds number turbulence models) with the semi-implicit method for pressure linked equations revised (SIMPLER) computational algorithm are used to study the air flow in the room. Special attention is paid to the velocity and kinetic energy distributions near the boundaries when using the low Reynolds number turbulence models. Computational results generally agree with experimental data.

Details

  • Original title: Comparison of numerical predictions and experimental measurements of ventilation in a room.
  • Record ID : 1995-1769
  • Languages: English
  • Source: ROOMVENT '94. Air distribution in rooms. Proceedings.
  • Publication date: 1994/06/15
  • Document available for consultation in the library of the IIR headquarters only.

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