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 Key Laboratory of Flow Control and Simulation, University of Shanghai for Science and Technology Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering
Guo Xueyan
School of Energy and Power Engineering, University of Shanghai for Science and Technology Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering
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.
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