The Variation of The Wave Reducing Efficiency of Prismatic Fixed Surface Obstacles With Respect to Its Dimensions
Study of the effects of fixed obstacles on incident waves can give considerable insight into the design of offshore structures. With certain assumptions simplifying the phenomena, motions caused by incident waves around the obstacles can be defined as a velocity potential, but this approach may be analytically very complex. Velocity potential around the obstacle can also be numerically determined by means of finite difference methods which are considerably simpler than the analytical techniques.
In this study, the effects of dimensions of prismatic obstacles on the incoming sinusoidal waves with small amplitudes are investigated. It is found that sectional barriers are more effective on reflecting waves than homogenous barriers with the same external dimensions if one evaluates them on the basis of their cross sectional areas and the material required for construction.
KeywordsIncident Wave Finite Difference Method Wave Energy Velocity Potential Offshore Structure
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