標題: LOWEST STABILITY BOUNDARY ON FLOW OF CONCENTRIC ROTATING CYLINDERS
作者: Lin, H. C.
Yang, W. M.
機械工程學系
Department of Mechanical Engineering
關鍵字: Instability;Taylor vortex;wavy vortex;Taylor-Couette flow;Chebyshev method
公開日期: 1-May-2010
摘要: In this study, we numerically investigate the lowest instability boundary of nonaxisymmetric Taylor vortex flow (TVF) for different axial wavenumbers. The variation in the axial wavenumber of a supercritical TVF can affect the instability of the flow, because the wavelength of a Taylor vortex is constant only when the flow is axisymmetrical. When the nonaxisymmetric TVF is transformed to a wavy vortex flow (WVF), the instability boundary is changed with the variation in the axial wavenumber. We carry out an instability analysis of the nonaxisymmetric TVF between two concentric rotating cylinders, which have a radius ratio of 0.88.
URI: http://dx.doi.org/10.1142/S0218127410026678
http://hdl.handle.net/11536/5465
ISSN: 0218-1274
DOI: 10.1142/S0218127410026678
期刊: INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
Volume: 20
Issue: 5
起始頁: 1527
結束頁: 1532
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