Full-scale experimental results on the mean and turbulent behavior of room ventilation flows

J. S. Zhang, G. J. Wu, L. L. Christianson

Research output: Contribution to journalConference articlepeer-review

10 Scopus citations

Abstract

Experiments were conducted in a full-scale test room (18 by 24 by 8 ft [5.5 by 7.3 by 2.4 m]) for both isothermal and nonisothermal conditions. Based on the experimental data, this paper discusses (1) the statistical features of air velocity fluctuations including probability density functions and energy spectra; (2) the observed airflow patterns; and (3) the spatial distributions of mean velocity, turbulence intensity, kinetic energy of turbulence, and mean temperature. Special attention is paid to the effects of the diffuser air velocities and internal heat loads on the flow characteristics and to the differences between the diffuser jet region and the occupied region. The detailed experimental data are also useful for evaluating and improving numerical simulation models of room motion.

Original languageEnglish (US)
Pages (from-to)307-318
Number of pages12
JournalASHRAE Transactions
Volume98
Issue numberpt 2
StatePublished - 1992
EventASHRAE Winter Meeting - Anaheim, CA, USA
Duration: Jan 25 1992Jan 29 1992

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

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