Application of BIV and PIV Techniques to Breaking Wave-Induced Flow Fields over Artificial Reef

• Main Authors: Shih-hsiang Lin, 林士翔
• Other Authors: Tai-wen Hsu
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/13223314454650754760

碩士 === 國立成功大學 === 水利及海洋工程學系碩博士班 === 97 === This thesis use Particle Image Velocimetry (PIV) and Bubble Image Velocimetry (BIV) to measure the various complex flow phenomena surrounding an artificial reef owing to its interaction with an oncoming wave. Based on the experimental results, the wave height of progressive wave decreases gradually with the increase of the distance of artificial reef. When wave breaking, the wave take the air into water and have air bubble. The air bubble velocity constantly decrease by the bubble impact in front of water. In breaking wave, surround of waterline’s field, the velocity is more faster than surround of structure. And the scope of this phenomenon increase gradually with the increase of the distance of artificial reef.