[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5293/IJFMS.2016.9.4.325

Free Surface Vortex in a Rotating Barrel with Rods of Different Heights

Zhang, Xiaoyue (School of Energy and Power Engineering, University of Shanghai for Science and Technology)
Zhang, Min (Department of Mechanical and Electrical Engineering, Henan Mechanical and Electrical Engineering College)
Chen, Wanyu (School of Energy and Power Engineering, University of Shanghai for Science and Technology)
Yang, Fan (School of Energy and Power Engineering, University of Shanghai for Science and Technology)
Guo, Xueyan (School of Energy and Power Engineering, University of Shanghai for Science and Technology)

Publication Information

International Journal of Fluid Machinery and Systems / v.9, no.4, 2016 , pp. 325-331 More about this Journal

Abstract

A bathtub vortex above the outlet of a rotating barrel is simulated. By analyzing the Ekman layer theory, it can be found that the main flow circulation is inversely proportional to the thickness of Ekman layer. The thicker the Ekman boundary layer, the weaker the rotational strength and the shorter of the length of gas core is. According to this law, models of barriers with rods of different heights are established. The reduction of air-core length in this air entrainment vortex and weakening the strength of rotation field were achieved.

Keywords

bathtub vortex; Ekman layer; tangential velocity; air core; circulation;

Citations & Related Records

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