Spectrum analysis of turbulence in the canine ascending aorta measured with a hot-film anemometer

Takami Yamaguchi, Sho Kikkawa, Kazuo Tanishita, Motoaki Sugawara

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We measured turbulence velocity in the canine ascending aorta using a hot-film anemometer. Blood flow velocity was measured at various points across the ascending aorta approximately 1.5-2 times the diameter downstream from the aortic valve. The turbulence spectrum was calculated and its characteristics were examined in connection with the mean Reynolds number and/or measuring positions. In the higher wave number range the values of the turbulence spectra were higher at larger mean Reynolds number. In the higher wave number range, the values of the turbulence spectra were higher at points closer to the centerline of the aorta, when the mean Reynolds number was relatively large. The patterns of the turbulence spectra at various points outside the boundary layer on the aortic wall were similar.

Original languageEnglish
Pages (from-to)489-495
Number of pages7
JournalJournal of Biomechanics
Volume21
Issue number6
DOIs
Publication statusPublished - 1988
Externally publishedYes

Fingerprint

Anemometers
Spectrum analysis
Aorta
Canidae
Spectrum Analysis
Turbulence
Reynolds number
Blood Flow Velocity
Aortic Valve
Flow velocity
Boundary layers
Blood

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Spectrum analysis of turbulence in the canine ascending aorta measured with a hot-film anemometer. / Yamaguchi, Takami; Kikkawa, Sho; Tanishita, Kazuo; Sugawara, Motoaki.

In: Journal of Biomechanics, Vol. 21, No. 6, 1988, p. 489-495.

Research output: Contribution to journalArticle

Yamaguchi, Takami ; Kikkawa, Sho ; Tanishita, Kazuo ; Sugawara, Motoaki. / Spectrum analysis of turbulence in the canine ascending aorta measured with a hot-film anemometer. In: Journal of Biomechanics. 1988 ; Vol. 21, No. 6. pp. 489-495.
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