Effects of Harbor Shape on the Induced Sedimentation; L-Type Basin

Download
2016-09-01
Kian, Rozita
Velioglu, Deniz
Yalçıner, Ahmet Cevdet
Zaytsev, Andrey
Tsunamis in shallow water zones lead to sea water level rise and fall, strong currents, forces (drag, impact, uplift, etc.), morphological changes (erosion, deposition), dynamic water pressure, as well as resonant oscillations. As a result, ground materials under the tsunami motion move, and scour/erosion/deposition patterns can be observed in the region. Ports and harbors as enclosed basins are the main examples of coastal structures that usually encounter natural hazards with small or huge damaging scales. Morphological changes are one of the important phenomena in the basins under short and long wave attack. Tsunamis as long waves lead to sedimentation in the basins, and therefore, in this study, the relation to the current pattern is noticed to determine sedimentation modes. Accordingly, we present a methodology based on the computation of the instantaneous Rouse number to investigate the tsunami motion and to calculate the respective sedimentation. This study aims to investigate the effects of the incident wave period on an L-type harbor sedimentation with a flat bathymetry using a numerical tool, NAMI DANCE, which solves non-linear shallow water equations. The results showed that the corner points on the bending part of the basin are always the critical points where water surface elevation and current velocity amplify in the exterior and interior corners, respectively.
JOURNAL OF MARINE SCIENCE AND ENGINEERING

Suggestions

Effects of harbour shape on the induced sedimentation
Kian, Rozita; Velioglu, Deniz; Yalçıner, Ahmet Cevdet; Pelinovsky, Efim; Kurkin, Andrey; Zaytsev, Andrey; Yalciner, Bora; Pamuk, Aykut (2017-01-01)
Tsunamis in shallow water zones lead to sea water level rise and fall, strong currents, forces (drag, impact, uplift, etc.), morphological changes (erosion, deposition), dynamic water pressure, as well as resonant oscillations. As a result, ground materials under the tsunami motion move and scour/erosion/deposition patterns can be observed in the region. Ports and harbours as enclosed basins are the main examples of coastal structures that usually encounter natural hazards with small or huge damaging scales...
Impacts of anthropogenic SOx, NOx and NH3 on acidification of coastal waters and shipping lanes
Hunter, Keith A.; Liss, Peter S.; Surapipith, Vanisa; Dentener, Frank; Duce, Robert; Kanakidou, Maria; Kubilay, Nilgun; Mahowald, Natalie; Okin, Greg; Sarin, Manmohan; Uematsu, Mitsuo; Zhu, Tong (2011-07-07)
The acidification of the ocean by anthropogenic CO2 absorbed from the atmosphere is now well-recognized and is considered to have lowered surface ocean pH by 0.1 since the mid-18th century. Future acidification may lead to undersaturation of CaCO3 making growth of calcifying organisms difficult. However, other anthropogenic gases also have the potential to alter ocean pH and CO2 chemistry, specifically SOx and NOx and NH3. We demonstrate using a simple chemical model that in coastal water regions with high ...
Effect of axial stresses on reservoir rocks
Kök, Mustafa Verşan; Buket Ulker, E. (2002-10-01)
The effect of axial stresses on rock is known to affect porosity, permeability, and rock compressibility and will be important in some reservoir rock types that are buried deep and at high temperatures. The aim of this project is to determine reservoir rock properties under in situ stress conditions and to observe the effects of axial stresses on reservoir rocks. For this purpose, a uniaxial stress device, which is capable of applying axial stress to the core samples, was used. The core samples chosen were ...
Effects of different bed roughnesses on the characteristics of hydraulic jumps
Velioğlu, Deniz; Tokyay, Nuray; Department of Civil Engineering (2012)
In practice, baffle blocks and sills are commonly being used to stabilize the location of a hydraulic jump and shorten the length of a stilling basin. On the other hand, gravels, corrugations and rectangular prismatic roughnesses which cover the entire length of the basin or placed in a staggered manner may be an alternative. The objective of this study is to determine the effects of these roughness elements on the characteristics of hydraulic jumps such as conjugate depth, jump length and energy dissipatio...
Impact of alternating wet and dry periods on long-term seasonal phosphorus and nitrogen budgets of two shallow Mediterranean lakes
Coppens, Jan; ÖZEN, ARDA; Tavsanoglu, U. Nihan; Erdogan, Seyda; Levi, Eti E.; Yozgatlıgil, Ceylan; Jeppesen, Erik; Beklioğlu, Meryem (2016-09-01)
The water balance, with large seasonal and annual water level fluctuations, has a critical influence on the nitrogen and phosphorus dynamics of shallow lakes in the semi-arid climate zone. We constructed seasonal water and nutrient budgets for two connected shallow lakes, Lakes Mogan and Eymir, located in Central Anatolia, Turkey. The study period covered 20 years with alternations between dry and wet years as well as restoration efforts including sewage effluent diversion and biomanipulations in Lake Eymir...
Citation Formats
R. Kian, D. Velioglu, A. C. Yalçıner, and A. Zaytsev, “Effects of Harbor Shape on the Induced Sedimentation; L-Type Basin,” JOURNAL OF MARINE SCIENCE AND ENGINEERING, pp. 0–0, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36432.