Anisotropy in the breathing zone of a thermal manikin

D. R. Marr, I. M. Spitzer, M. N. Glauser

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


This paper describes anisotropy of various second moments along with detailed mean velocities in the human breathing zone. High anisotropy levels have been anticipated due to the complexity of the flow and low Reynolds number in our cubicle sized setting. The measurement system is a standard stereo PIV system acquiring data along a sinusoidal breathing waveform in the breathing zone of a thermal manikin both with and without rotational motion. Results suggest that the airflow due to breathing is anisotropic. Because of this, common isotropic assumptions made in this environment are not admissible.

Original languageEnglish (US)
Pages (from-to)661-673
Number of pages13
JournalExperiments in Fluids
Issue number4
StatePublished - Apr 2008

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • General Physics and Astronomy
  • Fluid Flow and Transfer Processes


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