Flow bifurcation and heat transfer in a spherical gap

W. J. Luo; R. J. Yang

doi:10.1016/S0017-9310(99)00194-5

Flow bifurcation and heat transfer in a spherical gap

W. J. Luo, R. J. Yang

Department of Engineering Science

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This paper investigates the steady flow and heat transfer between two concentric spheres with the inner one rotating and the outer one stationary for the gap width of σ = 0.18. A continuation method is applied to study the bifurcation structure of the discretized governing equations. The resulting Jacobian matrix along with a test function approach is used to locate the bifurcation points. A bifurcation diagram of the flow is constructed for Re < 1200. Seven steady flow modes are predicted. Linear stability analysis is used to determine the stability of each flow mode. Temperature distribution and heat transfer rate of each flow mode are also computed and analyzed. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	885-899
Number of pages	15
Journal	International Journal of Heat and Mass Transfer
Volume	43
Issue number	6
DOIs	https://doi.org/10.1016/S0017-9310(99)00194-5
Publication status	Published - 2000 Mar 1

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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AB - This paper investigates the steady flow and heat transfer between two concentric spheres with the inner one rotating and the outer one stationary for the gap width of σ = 0.18. A continuation method is applied to study the bifurcation structure of the discretized governing equations. The resulting Jacobian matrix along with a test function approach is used to locate the bifurcation points. A bifurcation diagram of the flow is constructed for Re < 1200. Seven steady flow modes are predicted. Linear stability analysis is used to determine the stability of each flow mode. Temperature distribution and heat transfer rate of each flow mode are also computed and analyzed. (C) 2000 Elsevier Science Ltd. All rights reserved.

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