| Summary: | 碩士 === 國立成功大學 === 水利及海洋工程學系碩博士班 === 100 === The past research most of the seabed particles initiating conditions use contact flow meter and the naked-eye observation, to improve the quality of the measurement accuracy and test data, At the same time explore the sediment under wave action, this thesis use Particle Image Velocimetry （PIV） and Digital Image Processing （DIP） to measure the velocity of flow on the sea bed under wave action , further it aims to investigate sediment transport。
Based on the experimental results , use max velocity and max shear force on the sea bed to get the angle of excitation, it can be found to the angle of excitation is not equal to the angle of repose and internal friction; If it is using to calculate the shear force by the angle of excitation and repose, it can be found the shear force is much higher than the experimental values. In addition to use eyes, it can use the formula to determine the sand will move.
|
|---|
