Numerical modelling studies of two-layer flows in the Dardanelles Strait and the Bay of İzmit.

Sur, Halil İbrahim


Numerical modeling of re-suspension and transport of fine sediments in coastal waters
Karadoğan, Erol; Özhan, Erdal; Department of Civil Engineering (2004)
In this thesis, the theory of three dimensional numerical modeling of transport and re-suspension of fine sediments is studied and a computer program is develped for simulation of the three dimensional suspended sediment transport. The computer program solves the three dimensional advection-diffusion equation simultaneously with a computer program prepared earlier for the simulation of three dimensional current systems. This computer program computes the velocity vectors, eddy viscosities and water surface ...
Numerical Modeling and Site Investigation on Water Body Movements in Ayvalik Bay, Turkey
İRTEM, EMEL; KABDASLİ, M Sedat; BAĞCI, TAYLAN; Oğuz, Elif (2011-01-01)
Water body movements in bays and seas should also be determined for the solution of many engineering problems. This study aims to determine the hydrodynamic characteristics of the movements of the water body in Ayvalik Bay, one of the most important touristic coastal zones of Turkey with a great number of islands. Ayvalik Bay is located in the Ayvalik county of the province of Balikesir in the northern part of the Aegean Sea in Turkey. For this aim site measurements and numerical model studies have been car...
Numerical investigation of free surface and pipe flow problems by smoothed particle hydrodynamics
Dinçer, Ali Ersin; Bozkuş, Zafer; Department of Civil Engineering (2017)
In the present study, a two-dimensional (2D) computer code for free surface and pipe flows is developed by using Smoothed Particle Hydrodynamics (SPH) approach. For free surface flow problem, idealized dam break problems are investigated numerically. The results of three recently published experimental studies are used to validate the numerical solutions. In addition to mesh-free particle method, SPH with a novel boundary treatment model proposed in the present study, mesh-based methods with turbulence and ...
Water soluble nickel(0) and cobalt(0) nanoclusters stabilized by poly(4-styrenesulfonic acid-co-maleic acid): Highly active, durable and cost effective catalysts in hydrogen generation from the hydrolysis of ammonia borane
Metin, Onder; Özkar, Saim (2011-01-01)
This paper reports the in-situ generation and catalytic activity of nickel(0) and cobalt(0) nanoclusters stabilized by poly(4-styrene sulfonic acid-co-maleic acid), PSSA-co-MA, in the hydrolysis of ammonia borane (AB). PSSA-co-MA stabilized nickel(0) (PSMA-Ni) and cobalt(0) nanoclusters (PSMA-Co) having average particle size of 2.1 +/- 0.6 and 5.3 +/- 1.6 nm, respectively, were generated by in-situ reduction of nickel(II) chloride or cobalt(II) chloride in an aquoues solution of NaBH(4)/H(3)NBH(3) in the pr...
Optimized Electromagnetic Harvester with a Non-Magnetic Inertial Mass
Ulusan, Hasan; Yasar, Oguz; Zorlu, Ozge; Külah, Haluk (2015-09-09)
This paper presents an optimization study to decrease the operation frequency and increase the output power of a miniature electromagnetic (EM) energy harvester, by incorporating a non-magnetic inertial mass together with the moving magnet. The harvester coil position has been optimized through FEM, and validated through tests. Experimental studies on the inertial mass showed that increasing the magnet size further increases the resonance frequency due to the increased magnetic forces. Conversely, using a n...
Citation Formats
H. İ. Sur, “Numerical modelling studies of two-layer flows in the Dardanelles Strait and the Bay of İzmit.,” Ph.D. - Doctoral Program, Middle East Technical University, 1988.