Steady entrance flow in a strongly curved tube

Kazuo Tanishita, Jyunichi Suzuki, Naobumi Ohishi, Takeshi Naruse

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Laser Doppler velocity measurements were performed on the entry flow of a strongly curved tube with the parabolic entry profile, in which a maximum curvature ratio, defined as the ratio of tube radius to the radius of curvature a/R, achieved is 1/2 . Both axial and secondary velocities were measured, describing the fairly complete flow field. Intensified curvature effects cause the secondary flow, and the maximum secondary flow velocity went up to 90% of the cross-sectional averaged axial velocity in the curved tube with a/R = 1.2. Due to this enhanced secondary flow, separation of secondary flow is found near the inner wall.

Original languageEnglish
Pages (from-to)898-904
Number of pages7
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume57
Issue number535
Publication statusPublished - 1991 Mar

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secondary flow
Secondary flow
Steady flow
entrances
tubes
curvature
entry
flow separation
radii
Flow separation
velocity measurement
Flow velocity
Velocity measurement
Flow fields
flow distribution
flow velocity
Lasers
causes
profiles
lasers

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Steady entrance flow in a strongly curved tube. / Tanishita, Kazuo; Suzuki, Jyunichi; Ohishi, Naobumi; Naruse, Takeshi.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 57, No. 535, 03.1991, p. 898-904.

Research output: Contribution to journalArticle

Tanishita, Kazuo ; Suzuki, Jyunichi ; Ohishi, Naobumi ; Naruse, Takeshi. / Steady entrance flow in a strongly curved tube. In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 1991 ; Vol. 57, No. 535. pp. 898-904.
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