One Experimental Observation of Steady Standing Wave in Co-flow System
ORAL
Abstract
Dripping and jetting are two common regimes of the co-flow system. However, we usually observe wavy jets on the transition boundary between the dripping regime and the jetting regime. In this paper, we report one experimental observation of the steady standing wave in the co-flow system near the transition boundary. With this observation, we further examine the steady standing wave induced by the downstream boundary condition with respect to both the absolute instability and the convective instability. The downstream cross-sectional change can potentially stabilize the co-flow interface.
*The financial supports from the Research Grants Council of Hong Kong (GRF17237316, GRF17211115, GRF17207914, GRF HKU717613E, and GRF HKU718111E) and the University of Hong Kong (URC 201511159108, URC 201411159074 and URC 201311159187) are gratefully acknowledged. The work is also supported in part by the
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Presenters
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Zeyi Zhang
- Department of Mechanical Engineering, the University of Hong Kong