浅水环境水体底部湍流对船舶气泡减阻效果影响的实验研究  

Experimental Study on the Influence of Bottom Turbulence in Shallow Water upon the Bubble Drag Reduction Effect in Ship

作　　者：沈琪[1] 高启迪 李铭 SHEN Qi;GAO Qi-di;LI Ming(Dalian Branch of China Classification Society,Dalian Liaoning 116013,China;Zhejiang Ocean University,Zhoushan Zhejiang 316022,China;Hong Kong Ming Wah Shipping Co.,Ltd.,Shenzhen Guangdong 518000,China)

机构地区：[1]中国船级社大连分社,辽宁大连116013 [2]浙江海洋大学,浙江舟山316022 [3]香港明华船务有限公司,广东深圳518000

出　　处：《船海工程》2024年第S01期63-68,72,共7页Ship & Ocean Engineering

摘　　要：为了解外部湍流流场对气泡减阻效果的影响,通过平板实验的方式,对不同水深的浅水环境进行模拟实验。通过粒子测速仪(PIV)观测平板气泡流场,结合平板在水流中的受力变化,研究不同水深湍流流场对于气泡减阻效果的影响。结果表明,气泡减阻机理之一是通过湍流抑制减阻,在非浅水环境和浅水环境下,减阻效果不同,且喷气量在浅水环境中对气泡减阻起着关键作用。In order to understand the impact of external turbulent flow on the bubble drag reduction effect,the simulated experiments was conducted in shallow water environments with different water depths using a flat plate experiment.By observing the bubble flow field on the flat plate using a particle image velocimetry(PIV)system and combining the changes in forces on the flat plate in the water flow,the influence of turbulent flow fields of different water depths on the bubble drag reduction effect was studied.The results indicated that one of the drag reduction mechanisms of bubbles is through turbulence suppression;the drag reduction effect is different in non-shallow water and shallow water environments,and the amount of jet plays a key role in bubble drag reduction in shallow water environments.

关 键 词：船舶 气泡减阻 气泡流 浅水环境 

分 类 号：U661.3[交通运输工程—船舶及航道工程]