Ship wake structure on the finite sea depth in the presence of wind waves

研究成果: Conference contribution

摘要

A kinematics model of the ship wake in the presence of surface waves, generated by wind is presented. It is found that the stationary wave structure behind the ship covered a wedge region with the 16.9° half an angle at the top of the wake and only divergent waves are present in a ship wake for co propagating wind waves. Wind waves field directed at some nonzero angle to the ship motion can cause essential asymmetry of the wake and compressing of its windward half. The extension of Whitham-Lighthill kinematics theory of ship wake for the intermediate sea depth is also presented. The ship wake structure essentially depends from the Froude (Fr) number based on the value of the sea depth and ship velocity. For Froude number less than unit both longitudinal and cross waves are presented in the wake region and Kelvin wake angle increased with Fr. For Fr>1 wake angle decreased with Froude number and finally only divergent waves directed almost normally to the ship track are presented in the very narrow ship wake.

原文English
主出版物標題ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011
頁面691-697
頁數7
DOIs
出版狀態Published - 2011 十二月 1
事件ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011 - Rotterdam, Netherlands
持續時間: 2011 六月 192011 六月 24

出版系列

名字Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
6

Other

OtherASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011
國家Netherlands
城市Rotterdam
期間11-06-1911-06-24

    指紋

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

引用此

Yang, R-Y., Fang, M-C., & Shugan, I. V. (2011). Ship wake structure on the finite sea depth in the presence of wind waves. 於 ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011 (頁 691-697). (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; 卷 6). https://doi.org/10.1115/OMAE2011-49872