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Effect of Pipe Wall Roughness On Porous Breakwater Structure On Wave Deformation

Effect of Pipe Wall Roughness On Porous Breakwater Structure On Wave Deformation
	© 2021 by IJETT Journal
	Volume-69 Issue-5
	Year of Publication : 2021
	Authors : A. M. Syamsuri, D. A. Suriamihardja, M. A. Thaha, T. Rachman
	DOI :  10.14445/22315381/IJETT-V69I5P221

How to Cite?

A. M. Syamsuri, D. A. Suriamihardja, M. A. Thaha, T. Rachman, "Effect of Pipe Wall Roughness On Porous Breakwater Structure On Wave Deformation," International Journal of Engineering Trends and Technology, vol. 69, no. 5, pp. 147-151, 2021. Crossref, https://doi.org/10.14445/22315381/IJETT-V69I5P221

Abstract
Waves are raised on the flume and interact with porous breakwater structures. As a result of these interactions, waves will experience reflection, dissipation, and transmission. The research was conducted with a model of pipe wall roughness to analyze the reflection coefficient and high wave transmission coefficient on each change in the coefficient value of pipe wall roughness. The roughness of the pipe wall depends on the parameters of pipe diameter, pipe length, and water depth on a porous breakwater. The study was conducted with experimental laboratory methods using wave generation flume with three-period variations (T; 1.0 seconds, T; 1.1 seconds, T; 1.2 seconds), and three variations in water depth (d=1.0h; d=1.1h and d=1.2h) of which h is the height of the model. The results showed that the roughness of the pipe wall affected reflection waves and transmission waves. The greater the coefficient of the roughness of the pipe wall, the higher the wave height.

Keywords
Roughness of pipe wall, Wave reflection, Wave transmission

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