A study on typhoons induced nearshore hydrodynamics along Kinmen coast

Wen-Son Chiang, Wei Shiun Lu, Gia Yun Chen, Jin-Li Yu

研究成果: Conference contribution

摘要

Coastal erosion along Liaolo Bay which is a semi-circular beach and locates at the south coast of Kinmen Island was observed during past years. Field and numerical experiments were conducted to discuss the hydrodynamics inside the bay. CMS-WAVE and CMS-FLOW models were setup and validated according to the collected field data. Then, the models were applied to simulate the hydrodynamics inside the study site during typhoon events. Longshore current pattern along the semi-cicular beach is sensitive to the incident wave. For wave approaching from east direction, the most affected region inside the bay by the wave locates on the west of the beach. However, widespread impact on the whole beach was found when the wave incident from south direction. Wave (1∼2 m) travels from E∼ESE direction at the bay mouth usually occurs in winter and induces to consistently westward lognshore current along the beach with speed 0.2∼0.4 m/s. High wave approached from SE∼S direction during the studied typhoon events which induced to strong transiently and complex current patterns inside the bay beach with maximum speed up to more than 1.0 m/s. A rip circulation cell constantly found near the outcrop, which enhanced the strength of the rip circulation. Besides, rip circulation cells occasionally found at some spots along the beach respectively which depends on the incident wave energy and direction.

原文English
主出版物標題Proceedings of the 34th International Conference on Coastal Engineering, ICCE 2014
編輯Patrick Lynett
發行者American Society of Civil Engineers (ASCE)
ISBN(電子)9780989661126
出版狀態Published - 2014 一月 1
事件34th International Conference on Coastal Engineering, ICCE 2014 - Seoul, Korea, Republic of
持續時間: 2014 六月 152014 六月 20

出版系列

名字Proceedings of the Coastal Engineering Conference
2014-January
ISSN(列印)0161-3782

Other

Other34th International Conference on Coastal Engineering, ICCE 2014
國家/地區Korea, Republic of
城市Seoul
期間14-06-1514-06-20

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 海洋工程
  • 海洋學

指紋

深入研究「A study on typhoons induced nearshore hydrodynamics along Kinmen coast」主題。共同形成了獨特的指紋。

引用此