Bài viết Sự phát triển của sóng Stem dọc đê tường đứng dạng rỗng đánh giá sự phát triển của sóng Stem dọc theo đê tường đứng kết cấu rỗng. Từ đó, ảnh hưởng của loại sóng Stem này tới khả năng chịu lực của đê chắn sóng kết cấu rỗng cũng như hiện tượng bồi xói địa hình xung quanh đê sẽ được nghiên cứu phát triển trong tương lai. | Transport and Communications Science Journal Vol 72 Issue 5 06 2021 525-535 Transport and Communications Science Journal STEM WAVES EVOLUTION ALONG VERTICAL POROUS BREAKWATER Van Nghi Vu1 Van Khoi Pham2 1 Ho Chi Minh City University of Transport No 2 Vo Oanh Street Binh Thanh District Ho Chi Minh City Vietnam 2 Vietnam Maritime University No 484 Lach Tray Street Le Chan District Hai Phong Vietnam ARTICLE INFO TYPE Research Article Received 04 02 2021 Revised 01 04 2021 Accepted 15 04 2021 Published online 15 06 2021 https Corresponding author Email Abstract. Stem waves exist and develop along the vertical structures by the interaction between the incident waves and the reflected waves in cases of the obliquely incident waves. Stem waves impact on the safety of ship navigation and the vertical structures. In addition Stem waves may increase wave-overtopping amount in extreme weathers. Thus Stem waves should be seriously considered in the designing process of the vertical structures. This study applies the extended Boussinesq equations for waves in porous media to investigate the evolution and propagation of Stem waves in front of the vertical rigid and porous structures. Numerical results from the present extended Boussinesq model for Stem waves in front of a vertical wall are well verified with those of the SWASH model and the experimental data. For obliquely incident waves to a vertical rigid breakwater Stem waves develop and propagate along the vertical rigid breakwater and are clearly shown in cases of the large incident angles and high nonlinearity. For a vertical porous breakwater Stem waves still exist and develop along the structure though wave heights decrease due to energy dissipation inside the porous structure. The research results can be applied for the accretion or erosion investigation in front of vertical porous structures. Keywords Stem waves overtopping vertical rigid breakwater vertical porous .
