Near wakes of a circular cylinder in stratified flows

Yuji Ohya, Y. Nakamura

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Near wakes of a circular cylinder in linearly stratified flows are experimentally investigated by means of flow visualization and measurements of vortex shedding frequencies, at Reynolds numbers 5 × 10 3-104 and stratification parameters K smaller than 1.0. The study demonstrates that as K increases from zero, the vortex shedding from a circular cylinder is progressively strengthened, while the Strouhal number becomes gradually lower than that for a homogeneous flow. At a certain critical value of K, the enhanced vortex shedding is suddenly weakened and the Strouhal number increases sharply to a high value.

Original languageEnglish
Pages (from-to)481-483
Number of pages3
JournalPhysics of Fluids A
Volume2
Issue number4
DOIs
Publication statusPublished - Jan 1 1990

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Vortex shedding
Circular cylinders
Strouhal number
Flow measurement
Flow visualization
Reynolds number

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Near wakes of a circular cylinder in stratified flows. / Ohya, Yuji; Nakamura, Y.

In: Physics of Fluids A, Vol. 2, No. 4, 01.01.1990, p. 481-483.

Research output: Contribution to journalArticle

Ohya, Yuji ; Nakamura, Y. / Near wakes of a circular cylinder in stratified flows. In: Physics of Fluids A. 1990 ; Vol. 2, No. 4. pp. 481-483.
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