Boğaziçi Üniversitesi Tezleri: Recent submissions

  • Numerical investigation of blood rheology and vessel elasticty effects on hemodynamics in arteries with aneurysm 
    Bilgi, Coşkun. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The aim of this study is to provide insight to how pulsatile hemodynamics varies with rheology of blood and blood vessel elasticity in case of an abdominal aortic aneurysm (AAA). Fluid-solid interaction method with arbitrary ...
  • Modelling of unsteady processes of adsorption refrigeration systems 
    Berk, Mehmet Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Energy savings on refrigeration systems are highly desired due to the aware ness of limited energy sources in recent years. In this regard, new technologies have been developed in addition to the conventional refrigeration ...
  • Thermodynamic and economic analysis of ORC with optimiation of system components 
    Bekiloğlu, Hasan Eren. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Organic Rankine cycles (ORCs) are used to generate power from low temper ature heat sources. There are two main chapters in this study. In both parts, 28 different working fluids are used for three different heat source ...
  • Control system design of a highly-extensible soft continuum robot 
    Talaş, Şeref Kemal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In this thesis, control system design of a highly-extensible soft robot is presented. The robot is actuated with three inflatable tubings connected to stepper motors and can move in three-dimensional space. Pressurizing the ...
  • Design of an extensible colonoscope 
    Altınsoy, Timur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Colonoscopy is the standard medical diagnosis method used to detect abnormal ities in the colon. Early diagnosis of these abnormalities is crucial for colorectal cancer treatment to succeed. Even though colonoscopy is very ...
  • Convective heat transfer and flow performance analysis for a non-homogeneous nanofluid in a circular minichannel 
    Hokmabad, Siamak Vajdi. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This study investigates convective laminar flow and heat transfer of alumina-water nanofluid inside a circular minichannel subjected to constant heat flux and wall temperature. The results of numerical studies on non-homogeneous ...
  • Design realization and field testing of a vertical-axis wind turbine 
    Yazgaç, Erdal. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1981., 1981.)
    The purpose of this invertigation is to set up an experimental system for the field testing of the performance characteristics and practical serviceability of a vertical axis wind turbine. Based on previous research work, ...
  • Design optimization of composite I-beam wing spars with corrugated web 
    Çok, Doğan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The main goal of this study is to develop a methodology for optimum structural design of composite I-beam wing spars with wavy corrugated web to minimize mass and investigate their mechanical behaviors under aerodynamic ...
  • Increasing the reliability of full-field DIC strain measurement by adaptive algorithms 
    Özdür, Necdet Ali. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Digital Image Correlation is now a widely used method for measuring deforma tion fields with high spatial resolution. Its single camera (two-dimensional) application is used to evaluate in-plane deformation of a planar ...
  • Numerical analysis of Newtonian and non-Newtonian ferrofluid pipe flow under constant and oscillanting magnetic fields 
    Büyükçayır, Mehmet Can. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In this study the effects of constant and oscillating magnetic fields on axi symmetric laminar pipe flow are studied. The analyses cover both Newtonian and non-Newtonian ferro fluids exhibiting both shear thinning and shear ...
  • Optimum design of stiffend composite plaates under impact loading 
    Seyyedrahmani, Farzad. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Thin composite plates do not have sufficient strength and stiffness under trans verse loads and bending moments. One may increase thickness, but using stiffeners is a more effective way of improving their mechanical response. ...
  • Development of a mili-newton level thrust stand for thrust measurement of electric propulsion systems and UK90 hall effect thruster 
    Kokal, Uğur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Since 1960’s, electric propulsion systems have been used on spacecraft for orbital maneuvers and deep space missions. Electric propulsion systems can operate at high specific impulse levels and can deliver very high delta-V ...
  • Topography optimization of cylindirical shells with cutouts for maximum buckling strength 
    Gökyer, Yusuf. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Buckling strength of shell structures under compression significantly drops if cutouts exist. In order to compensate this, these structures are reinforced with stiffeners. In this thesis, the objective is to optimize ...
  • Shape optimization of bumper beam under low-velocity impact 
    Dadashzadeh, Sina. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Bumper beam is an important part of vehicles providing protection from colli sions. Its main function is to prevent damage to the rest of the vehicle in low-speed collisions. For this reason, it should absorb the energy ...
  • Electrospinning of polycaprolactone / bovine gelatin / bovine hydroxyapatite biomimetic composite nanofibers 
    Akalın, Güneş Ece. (Thesis (M.A.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    In this study, Polycaprolactone (PCL) / Bovine Gelatin (GE) / Bovine Hydroxyapatite (BHA) biomimetic composite nanofiber scaffolds are manufactured for bone tissue regeneration applications by electrospinning. By controlling ...
  • Experimental and numerical progressive failure analysis of corrugated core type composite sandwich structure 
    Çalık, Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    The demand in industry for composite sandwich structures has been rising thanks to their superior material properties and design flexibility. It is possible to design a composite sandwich structure special to any operating ...
  • Scattering of SH-waves by circular and elliptical cylinders-A solution by the hilbert-schmidt method 
    Tulgar, Hasan. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1981., 1981.)
    Near- and far-field solutions are presented for the scattering of SH-waves by a circular cavity and a rigid inclusion in infinite space while only far-field results are given for an elliptical geometry. Integral equations ...
  • The effects of polymer / surfactant additives on the flow and heat transfer around a circular cylinder in periodic vortex shedding 
    Şahin, Çağlar. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    This study focuses on the flow and heat transfer properties of dilute poly mer/surfactant solutions using Newtonian, and inelastic/elastic non-Newtonian con stitutive models. The results are discussed in terms of drag and ...
  • Experimental and numerical progressive failure analysis in open-hole tensile tests of quası-isotropic composite laminates 
    Ahmadvashaghbash, Sina. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    In this study, the progressive failure behavior of the Open-Hole Tension (OHT) specimens was analyzed by both numerical and experimental methods. The analysis of failure behavior of the notched composite laminates under ...
  • Effect of inherent microtexture on strain heterogeneity in rolled magnesium AZ31 
    Üçel, İbrahim Buğra. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    The level of utilization of magnesium alloys in engineering practice is steadily increasing, mainly due to their high specific strength. Their complex mechanical be havior, however, requires characterization at microstructural ...

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