Numerical Study of Complex Water-Air Interface in Ship Drag Reduction by Air Layer

被引：0
|
作者：
Zheng, Chaosheng [1 ,2 ]
Hong, Fangwen [1 ,2 ]
Zhang, Xiaosong [3 ]
机构：
[1] China Ship Scientific Research Center, Wuxi,214082, China
[2] National Key Laboratory on Ship Vibration and Noise, Wuxi,214082, China
[3] School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai,200240, China
来源：
Ship Building of China | 2022年 / 63卷 / 03期
关键词：
Numerical methods - Phase interfaces;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In air-layer drag reduction, the formation of stable air-layer is an important prerequisite. An experimental air-layer drag reduction model in LCC is chosen to study the numerical method. Water-air interface of the air-layer under the hull bottom is simulated with quasi-DNS method and URANS method respectively. The simulation results show that, the quasi-DNS can predict air-layer-uncovered region behind ventilation step, which is in better agreement with the experiment, compared with URANS method, and the effects of the flow vortex structure instability on water-air interface instability and the air layer shape are analyzed as well. © 2022, Editorial Office of Ship Building of China. All right reserved.
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页码：127 / 134
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