Secondary flow augmentation in intermittent oscillatory flow in model human central airways

Gaku Tanaka, Tomoko Ogata, Kotaro Oka, Kazuo Tanishita

Research output: Contribution to journalArticle


Axial and secondary velocity profiles through a model human central airways were measured to clarify the intermittent oscillatory How structure during high-frequency oscillation. Velocities in the two directions were measured by a two-color lascr-doppler vclocimeter. In the trachca, secondary flow is enlarged at the early stationary phase in both the inspiratory and expiratory phases. This augmentation of secondary flow promotes axial gas dispersion by enhancing cross-stream mixing.

Original languageEnglish
Pages (from-to)91-92
Number of pages2
JournalAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Publication statusPublished - 1998 Dec 1


ASJC Scopus subject areas

  • Engineering(all)

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