Currents induced by vertical varied radiation stress in standing waves and evolution of the bed composed of fine sediments

• Published in: International journal of sediment research Vol. 24; no. 2; pp. 214 - 226
• Main Authors: ZHANG, Jing-Xin, LIU, Hua
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2009; Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
• Subjects: Scour pattern; Standing wave; Suspended sediment; Vertical variation in radiation stress; 垂直剖面; 模拟电流; 沉积物; 辐射应力; Suspended sediment; Scour pattern; Vertical variation in radiation stress; Standing wave
• ISSN: 1001-6279
• DOI: 10.1016/S1001-6279(09)60028-7

This paper extends the conventional concept of radiation stress （Longuet-Higgins and Stewart, 1964） in progressive water waves to standing waves, so that its vertical profile could be defined and calculated in a new technical way. The hydrodynamic numerical model being coupled with the vertically varying radiation stress in standing waves is used to simulate the currents being induced by standing waves in the vertical section. Numerical modeling of suspended sediment transport is then carried out to simulate the evolution of the bed composed of fine sediments by the currents. The scour and deposition patterns simulated are in qualitative agreement with prior laboratory and field observations.