Fen Bilimleri Enstitüsü: Recent submissions

  • Adsorption refrigeration cycle with mass and heat recovery 
    Yıldız, Kadir Yiğit. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    A non-uniform temperature/uniform pressure mathematical model of a combined mass and heat recovery adsorption cooling cycle based on activated carbon/methanol working pair is examined and numerically solved under certain ...
  • Evaluation of fracture parameters of NiTi shape memory alloy using digital image correlation 
    Shafaghi, Nima. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this work, Digital Image Correlation (DIC) is used to investigate the e ect of martensitic phase transformation on fracture behavior of NiTi shape memory alloy. To nd out the e ect of phase transformation from austenite ...
  • Concurrent design and process optimization in forging 
    Kocaoğlan, Sinem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Design parameters not only affect the performance of a product, but also affect the feasibility, effectiveness and efficiency of manufacturing. Processing parameters, in turn, affect the performance of the part. For this ...
  • Strain energy based fatigue model for notched part subjected to multiaxial loading 
    Karadeniz, Cumali Özgür. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this study, a new fatigue assessment model is developed for high cycle fatigue of metals under multiaxial proportional loading. The proposed model uses readily available material properties and contains no parameters ...
  • A study on the performance of a 1-2 parallel counterflow oil heat exchanger 
    Özsoy, Bülent. (Thesis (M.S.)- Robert College. Faculty of Graduate School of Engineering, 1969., 1969.)
  • Single and two phase continuum modeling for laminar forced convection of nanofluids 
    Göktepe, Sinan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Macroscopic modeling of nanofluids is necessary for design and analysis of equipment that rely on nanofluids. For the moment, there is no study that covers recent state-of-the-art nanofluid models, and compares their ...
  • Calculation of stress intensity factor for an edge cracked shape memory alloy plate 
    Alkan, Sertan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this thesis, the e ect of martensitic transformation on stress intensity factor in an edge cracked shape memory plate loaded under Mode I conditions is studied. J contour integral is evaluated by an explicit technique ...
  • Morphological evaluation of 1-site polycrystalline models 
    Şengör, Mustafa. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Mesoscale models consider grain level interactions. Unlike continuum models, they account for the discontinuities stemming from the elastic anisotropy of the crystallites in addition to the directional nature of the ...
  • Hydroxyapatite coating on 316L stainless steel by DIP coating method 
    Dedeoğlu, Sezen. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Hydroxyapatite (HA) coating on 316L Stainless steel with different amounts of polyvinyl alcohol (PVA) additive and different sintering temperatures were fabricated by using dip coating method. Hydroxyapatite was inosculated ...
  • Experimental investigation of the effect of phase transformation on francture parameters of NiTi shape memory alloy 
    Haghgouyan, Behrouz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    This thesis aims to investigate the effect of martensitic phase transformation on fracture parameters of Nickel-Titanium (NiTi) SMA. NiTi specimens were characterized using optical microscopy and uniaxial tensile testing. ...
  • Numerical investigation of polymer additive effects on the flow around immersed bodies 
    Çetin, Onur. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    Although it is a well-known fact that dilute solutions obtained by adding a small amount of polymer or surfactant to Newtonian fluids lead to a reduction in friction factor and drag coefficient at high Reynolds number ...
  • Boundary control of transient temperature in internal pipe flow heat transfer by POD-Galerkin ROM 
    Eren, Erdem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    The aim of this thesis is to investigate the model reduction and modern control methods used in study of fluid stability and control. Some of the modern methods of reduced order modeling and control are applied to a ...
  • In situ image correlation measurement of grain-level deformation fields in twinning magnesium 
    Telemez, M. Ayça. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this study, in situ digital image correlation (DIC) has been utilized for full-field strain measurements in a hexagonal close-packed (HCP) AZ31 magnesium alloy at both macroscopic and microscopic (crystallite) length ...
  • Failure behavior of composite laminates under out-of-plane loads 
    Koç, Murat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this study, failure behavior of fiber-reinforced composites under out-of-plane loads is investigated by means of four – point bending tests. Firstly, four – point bending tests are modeled analytically using the classical ...
  • Numerical investigation of convective-diffusive transport using the smoothed particle hydrodynamics technique 
    Danış, Mustafa Engin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this thesis, Incompressible Smoothed Particle Hydrodynamics (ISPH) technique is implemented to analyze various convective-diffusive transport problems numerically. First of all, a brief summary of applications and ...
  • Level set analysis of two-fluid interfacial flows 
    Sheikhi, Aidin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this study incompressible immiscible two-phase ows have been analyzed in two dimensions using Level Set method. Firstly, a brief explanation about other numerical methods existing in the field of modelling interfacial ...
  • Phononic band gaps in two-dimensional periodic structures with inertial amplification mechanisms 
    Dilber, Gizem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this thesis, a 2D periodic structure equipped with inertial amplification mechanisms is designed. The structure is optimized to obtain a wide and deep phononic band gap in low frequency ranges. The aim is to prevent ...
  • Design, construction and use of a guarded hot plate for the meaurement of the thermal conductivity of insulating materials 
    İbrahim, Mustafa. (Thesis (M.S.)- Robert College. Faculty of Graduate School of Engineering, 1969., 1969.)
  • Cooling performance investigation of nanofluids for internal combustion engine systems 
    Aydoğan, Onur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    This study aims to evaluate numerically the cooling performance increase of an internal combustion engine cooling system due to the use of nanofluids. Throughout the study a set of analyses has been done to determine the ...
  • Constitutive models of shape memory alloys and their implementation to finite elements 
    Yurtoğlu, Mete. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The aim of this work is to study existing constitutive models for shape-memory alloys and to implement them to nite elements. Fracture behavior in Mode-I and mixed-mode is studied and, for this purpose, a 2-D edge cracked ...

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