The 12th International Conference on Hydrodynamics
18 – 23 september 2016, Egmond aan Zee, The Netherlands
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EFFECTS OF ROD GROUPS OF DIFFERENT STIFFNESS ON REGULAR WAVE PROPAGATIONAND TURBULENCE CHARACTERISTICS


Go-down ichd2016 Tracking Number 130

Presentation:
Session: Hydrodynamics in Ocean IV
Room: Room 3
Session start: 14:00 Tue 20 Sep 2016

Chao Tan   248716144@qq.com
Affifliation: Guangdong Research Institute of Water Resources and Hydropower, China

Bensheng Huang   gdsky_tanchao@foxmail.com
Affifliation: Guangdong Research Institute of Water Resources and Hydropower, China

Da Liu   12196199@qq.com
Affifliation: Guangdong Research Institute of Water Resources and Hydropower, China

Jing Qiu   410540718@qq.com
Affifliation: Guangdong Research Institute of Water Resources and Hydropower, China


Topics: - Hydrodynamics in ocean, coastal and estuary engineering

Abstract:

Abstract: The bending elastic modulus was measured using a conceptual plant model comprising groups of silica-gel rods of different stiffness. The effects of the different groups on the regular wave velocity distribution, turbulence characteristics and wave dissipation were studied in a laboratory experiment. The experimental results show that when a wave passed through a group of flexible rods, the velocity period changed gradually from unimodal to bimodal, and the secondary wave peak was more obvious for lower rod stiffness. Furthermore, the turbulence intensity increased with the rod stiffness. With an increase in the bending elastic modulus of the rod group, the wave dissipation coefficient increased. The increase in the wave dissipation coefficient with the bending elastic modulus was not linear but sensitive within a certain range of the elastic modulus. Key words: rod groups of different stiffness, bending elastic modulus, velocity distribution, turbulence intensity, wave dissipation effect