Stability of Dual Solutions of the Flow in a Curved Circular Tube

Shinichiro Yanase, Nozomi Goto, Kyoji Yamamoto

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Two-dimensional linear stability of dual solutions, two-vortex and four-vortex solutions, of the flow through a slightly curved tube is investigated numerically by the Fourier-Chebyshev spectral method in the range 96≤Dn≤ 10000, where Dn is the Dean number which characterizes laminar flow through a curved tube. It is found that a two-vortex solution is stable with respect to any small disturbances. A four-vortex solution, which appears when Dn≤956, is unstable to an asymmetric disturbance.

Original languageEnglish
Pages (from-to)2602-2604
Number of pages3
Journaljournal of the physical society of japan
Volume57
Issue number8
DOIs
Publication statusPublished - Jan 1 1988

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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