Flow Structure Transition inside Contra-Rotating Disk Cavity

Abstract:

The turbulent flow inside contra-rotating disk cavity was numerically studied based on the finite volume method. The flow structure and its transition characteristics inside a contra-rotating were studied. The flow structure varies with the angular velocity ratio Γ of the slower disk to that of the faster one. For Γ=-1, the Stewartson-type flow occurs throughout the domain. For Γ=0, the Batchelor-type flow occurs throughout the flow region. The stagnation streamlines originating from the stagnation point are formed for-1<Γ<0, and batchelor-type flow occurs radially outward of the stagnation point with Stewartson-type flow radially inward. The stagnation point moves radially outward as Γ is reduced.

• Periodical: Applied Mechanics and Materials (Volumes 602-605)
• Pages: 353-356
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.602-605.353
• Online since: August 2014
• Authors: Shu Xian Chen*, Xue Jie Shi, Xiao Ming Tan
• Keywords: Contra-Rotating Disk Cavity, Flow Structure, Transition

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