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Simulation of room flows with small ventilation openings by a local grid-refinement technique.

Author(s) : LI Y., HOLMBERG S., PAPROCKI A., TANG Y. Q.

Type of article: Article

Summary

Small ventilation openings in large rooms constitute a numerical resolution difficulty in indoor air flow simulation. A local grid-refinement technique is introduced to add local grid points in the small-opening regions. The method requires a relatively small increase in computer storage. A multi-grid algorithm, which turns out to be an efficient and accurate solver, is used to solve the discrete system of equations on both global and local grids. A method for implementing the wall function in the solution procedure is described. The calculations show good agreement with the smoke visualisations of the flow pattern close to the diffuser.

Details

  • Original title: Simulation of room flows with small ventilation openings by a local grid-refinement technique.
  • Record ID : 1995-1048
  • Languages: English
  • Source: Build. Serv. Eng. Res. Technol. - vol. 15 - n. 1
  • Publication date: 1994
  • Document available for consultation in the library of the IIR headquarters only.

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