Separation Method of Bi-directional Reflected Waves and Oblique Incident Regular Waves

Wave reflection is one of the key problems affecting wave simulation quality in ocean engineering basin. The deep ocean engineering basin is equipped with two-sided segmented wavemakers and two wave absorbing beaches, which are located opposite to wave generators to reduce wave reflection effects. W...

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Bibliographic Details
Published inShanghai jiao tong da xue xue bao Vol. 18; no. 6; pp. 641 - 645
Main Author 李俊 陈刚 杨建民 彭涛
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2013
Subjects
Architecture
Computer Science
Electrical Engineering
Engineering
Life Sciences
Materials Science
reflection coefficient
wave reflection
oblique regular wave
separation method
U 661.1
Online AccessGet full text
ISSN1007-1172
1995-8188
DOI10.1007/s12204-013-1444-8

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Summary:Wave reflection is one of the key problems affecting wave simulation quality in ocean engineering basin. The deep ocean engineering basin is equipped with two-sided segmented wavemakers and two wave absorbing beaches, which are located opposite to wave generators to reduce wave reflection effects. When an oblique longcrested wave is made by two-sided segmented wavemakers in a wave basin, two bi-directional reflected waves with the same azimuth but opposite propagation directions are generated. According to this feature, based on the two-point approach developed by Goda, a method to separate an incident regular wave from two bi-directional reflected waves using three wave gauges is proposed. The validity of this method is proved by numerical composite waves. The results indicate that the method can separate incident wave from reflected waves effectively. The method can be used to determine the reflection coefficient and verify the capacity of wave absorbing beaches in deep ocean engineering basin.
Bibliography:Wave reflection is one of the key problems affecting wave simulation quality in ocean engineering basin. The deep ocean engineering basin is equipped with two-sided segmented wavemakers and two wave absorbing beaches, which are located opposite to wave generators to reduce wave reflection effects. When an oblique longcrested wave is made by two-sided segmented wavemakers in a wave basin, two bi-directional reflected waves with the same azimuth but opposite propagation directions are generated. According to this feature, based on the two-point approach developed by Goda, a method to separate an incident regular wave from two bi-directional reflected waves using three wave gauges is proposed. The validity of this method is proved by numerical composite waves. The results indicate that the method can separate incident wave from reflected waves effectively. The method can be used to determine the reflection coefficient and verify the capacity of wave absorbing beaches in deep ocean engineering basin.
31-1943/U
LI Jun, CHEN Gang, YANG Jian-min, PENG Tao（1. State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Marine Design and Research Institute of China, Shanghai 200011, China）
oblique regular wave, separation method, wave reflection, reflection coefficient
ISSN:1007-1172
1995-8188
DOI:10.1007/s12204-013-1444-8