Evaluation of Dynamic Pressure on Compound Perforated Wave Screen under Regular Waves
Coasts play an important role in economy of each country for their strategic location for residential, recreational, and industrial activities. Hence, a need has arisen to protect and maintain these coasts against waves and currents. (Rageh et al., 2009). <br />The main cause of damage to coas...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Shahid Chamran University of Ahvaz
2018-10-01
|
| Series: | علوم و مهندسی آبیاری |
| Subjects: | |
| Online Access: | http://jise.scu.ac.ir/article_13756_2afef4344d59392a8bc3f0c81ecf93ce.pdf |
| _version_ | 1831630946551463936 |
|---|---|
| author | Naval Azam Farzin Salmasi Mohammad Ali Lotfollahi Yaghin Javad Parsa Ali Reza Mojtahedi |
| author_facet | Naval Azam Farzin Salmasi Mohammad Ali Lotfollahi Yaghin Javad Parsa Ali Reza Mojtahedi |
| author_sort | Naval Azam |
| collection | DOAJ |
| description | Coasts play an important role in economy of each country for their strategic location for residential, recreational, and industrial activities. Hence, a need has arisen to protect and maintain these coasts against waves and currents. (Rageh et al., 2009). <br />The main cause of damage to coastal structures is the wave impact force. Protective structures such as submerged breakwaters, screen breakwaters, and various piles are often designed to provide additional attenuation of the impact force impact. The use of vertical slotted barriers can be a cost effective solution for wave energy dissipation when sloped rubble structures are not desirable<em>.</em> For a cost-effective design of such barriers, an accurate estimation of dynamic pressures characteristics is needed<em>.</em> <br />Many experimental and theoretical studies were carried out for determining the dynamic pressures acting on different shapes or structures supported on piles. Neelamani & Sandhya (2005) investigated wave reflections, run-up and run-down, and wave pressures on plane, dentate and serrated seawalls. Krishnakumar et al. (2010) studied the effect of wave screens on the reduction of pressures and forces on a vertical wall on its lee side due to directional waves. Shih (2016) investigated the performance of a pervious pipe screen breakwater installed in front of a seawall in terms of reducing the wave impact force and wave pressure. The preceding brief review suggests that there is not much experimental data published on the wave induced dynamic pressures acting on compound wave screen. In this study, experimental investigations on wave pressures on different compound wave screen configurations were carried out in regular wave. The wave screen consists of a perforated wall that extends from above the seawater to above the seabed. The gap between pipes allows the seawaterexchange, the sediment transport and the fish passage and the results of this study can be used for a better hydrodynamic design of vertical structures. |
| first_indexed | 2024-12-19T04:51:43Z |
| format | Article |
| id | doaj.art-6f93e21588c14560b83df804598af07b |
| institution | Directory Open Access Journal |
| issn | 2588-5952 2588-5960 |
| language | fas |
| last_indexed | 2024-12-19T04:51:43Z |
| publishDate | 2018-10-01 |
| publisher | Shahid Chamran University of Ahvaz |
| record_format | Article |
| series | علوم و مهندسی آبیاری |
| spelling | doaj.art-6f93e21588c14560b83df804598af07b2022-12-21T20:35:20ZfasShahid Chamran University of Ahvazعلوم و مهندسی آبیاری2588-59522588-59602018-10-014138910210.22055/jise.2018.1375613756Evaluation of Dynamic Pressure on Compound Perforated Wave Screen under Regular WavesNaval Azam0Farzin Salmasi1Mohammad Ali Lotfollahi Yaghin2Javad Parsa3Ali Reza Mojtahedi4Ph.D. Student, Department. of Water Eng., University of Tabriz, IranAssociate Professor, Department. of Water Engineering, Tabriz University, IranProfessor, Department. of Civil Engineering, University of Tabriz, IranAssistant Professor, Department. of Water Engineering, Tabriz University, IranAssociate Professor, Department. of Civil Engineering, University of Tabriz, IranCoasts play an important role in economy of each country for their strategic location for residential, recreational, and industrial activities. Hence, a need has arisen to protect and maintain these coasts against waves and currents. (Rageh et al., 2009). <br />The main cause of damage to coastal structures is the wave impact force. Protective structures such as submerged breakwaters, screen breakwaters, and various piles are often designed to provide additional attenuation of the impact force impact. The use of vertical slotted barriers can be a cost effective solution for wave energy dissipation when sloped rubble structures are not desirable<em>.</em> For a cost-effective design of such barriers, an accurate estimation of dynamic pressures characteristics is needed<em>.</em> <br />Many experimental and theoretical studies were carried out for determining the dynamic pressures acting on different shapes or structures supported on piles. Neelamani & Sandhya (2005) investigated wave reflections, run-up and run-down, and wave pressures on plane, dentate and serrated seawalls. Krishnakumar et al. (2010) studied the effect of wave screens on the reduction of pressures and forces on a vertical wall on its lee side due to directional waves. Shih (2016) investigated the performance of a pervious pipe screen breakwater installed in front of a seawall in terms of reducing the wave impact force and wave pressure. The preceding brief review suggests that there is not much experimental data published on the wave induced dynamic pressures acting on compound wave screen. In this study, experimental investigations on wave pressures on different compound wave screen configurations were carried out in regular wave. The wave screen consists of a perforated wall that extends from above the seawater to above the seabed. The gap between pipes allows the seawaterexchange, the sediment transport and the fish passage and the results of this study can be used for a better hydrodynamic design of vertical structures.http://jise.scu.ac.ir/article_13756_2afef4344d59392a8bc3f0c81ecf93ce.pdfwave screendynamic pressureregular waveshore protection |
| spellingShingle | Naval Azam Farzin Salmasi Mohammad Ali Lotfollahi Yaghin Javad Parsa Ali Reza Mojtahedi Evaluation of Dynamic Pressure on Compound Perforated Wave Screen under Regular Waves علوم و مهندسی آبیاری wave screen dynamic pressure regular wave shore protection |
| title | Evaluation of Dynamic Pressure on Compound Perforated Wave Screen under Regular Waves |
| title_full | Evaluation of Dynamic Pressure on Compound Perforated Wave Screen under Regular Waves |
| title_fullStr | Evaluation of Dynamic Pressure on Compound Perforated Wave Screen under Regular Waves |
| title_full_unstemmed | Evaluation of Dynamic Pressure on Compound Perforated Wave Screen under Regular Waves |
| title_short | Evaluation of Dynamic Pressure on Compound Perforated Wave Screen under Regular Waves |
| title_sort | evaluation of dynamic pressure on compound perforated wave screen under regular waves |
| topic | wave screen dynamic pressure regular wave shore protection |
| url | http://jise.scu.ac.ir/article_13756_2afef4344d59392a8bc3f0c81ecf93ce.pdf |
| work_keys_str_mv | AT navalazam evaluationofdynamicpressureoncompoundperforatedwavescreenunderregularwaves AT farzinsalmasi evaluationofdynamicpressureoncompoundperforatedwavescreenunderregularwaves AT mohammadalilotfollahiyaghin evaluationofdynamicpressureoncompoundperforatedwavescreenunderregularwaves AT javadparsa evaluationofdynamicpressureoncompoundperforatedwavescreenunderregularwaves AT alirezamojtahedi evaluationofdynamicpressureoncompoundperforatedwavescreenunderregularwaves |