Browsing Makina Mühendisliği by Title

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  • Mixed convection about a rotating sphere 
    Ecder, Ali. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    This report presents a theoretical analysis of flow and heat transfer characteristics of the effects of rotational speed, buoyancy force and the Prandtl number on laminar boundary layer over a rotating sphere in forced ...
  • Modeling cracks in nonlinear viscoelastic media subjected to thermal loading 
    İyidiker, Çağrı. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    This thesis study deals with the crack initiation and propagation analyses in nitely deforming viscoelastic media. The main goal of the study is to obtain a methodology for crack propagation analyses in bulk material and ...
  • Modeling localized heating induced size effects in semiconductor devices 
    Dündar, Canberk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Micro and nano scale semiconductor devices could undergo localized self-heating that obscures phonon transport and leads to size e ects and peak device temperatures. Consequently, device performance and lifetime are degraded. ...
  • Modeling of an autothermal heat-integrated wall reactor for simulation of hydrogen production for fuel cell applicayions 
    Biçici, Cihan Banu. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    An autothermal, heat integrated wall reactor model for hydrogen production forvehicular fuel cell applications is investigated using computer-based simulation techniques.The two dimensional reactor model is based on a ...
  • Modeling of circular counterflow swissroll combustor for MEMS application 
    Özgül, Emre. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    A two-dimensional numerical model is generated for simulating combustion and heat transfer in "Spiral Swiss roll" combustors. In this research, the most important purpose is to investigate the micro-scale combustion and ...
  • Modeling of micropipette aspiration of flaccid human red blood cell using finite elements 
    Akyıldız, Ali Çağdaş. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    This thesis aims to analyze the steady state deformation of flaccid red blood cell (RBC) in micropipette aspiration (MA) experiment using finite elements (FE). Three different geometries, namely infinite plane, disk and ...
  • Modeling of rectangular counter flow heat-recirculating combustor 
    Saracoğlu, Bayındır Hüseyin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The meso-scale, 3.5 turn Swiss-roll type counter flow heat recirculating combustor is modeled by a two dimensional finite-volume computational fluid dynamics (CFD) solver. The solver includes momentum, continuity, energy ...
  • 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 ...
  • Modified numerical method for thin film thermal conductivity calculation with micro-raman spectroscopy 
    Meydando, Taher. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Thin film materials have recently drawn a great attention for their wide range of applications in nano- and micro-scale devices. To overcome thermal issues associated with these devices, thin film materials must be ...
  • Molecular dynamics study of water-HBN nanofluid 
    Akıner, Tolga. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    This study considers the molecular simulations of nanofluids and the goal is to investigate the thermomechanical mechanisms in nanoscale thermal transport. The enhanced thermal conductivity and limited shear viscosity ...
  • 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 ...
  • Multi-objective robust control of rotor / active magnetic bearing systems 
    Kuseyri, İbrahim Sina. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    This dissertation considers the application of recent robust linear control techniques to rotors with active magnetic bearings. Rotors suspended with electromagnetic bearings are inherently unstable; therefore feedback ...
  • Multiple-domain analysis of 3-dimensional flow over an ellipsoidal body of aeronautical interest 
    Sevinç, Erkan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Numerical solutions to partial differential equations form the backbone of mathematical models that simulate gas flow, which in the present case is assumed to be airflow around an arbitrary atmospheric body. Significance ...
  • Nonlinear preconditioning applied to internal flows 
    Yıldız, Ersin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Solution of large and sparse nonlinear system is required in many computational science and engineering areas. Well-known inexact Newton method converges fast with a good initial guess, however such an initial guess is ...
  • Nonlinear viscoelastic material modeling using nested linkage mechanisms 
    Özcan, Mustafa Umut. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In this study, basic linear lumped elements such as springs and dashpots are used in nested linkage mechanisms in order to simulate and predict the mechanical behaviour of nonlinear viscoelastic materials. The proposed ...
  • Numerical analysis for magnetic effects on newtonian and non-newtonian ferrofuid flow around a circular cylinder 
    Adıgüzel, Ömer Barış. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    In this study, the e ects of magnetic eld applications are investigated on ferromagnetic ow around cylinder. The analyses are made for Newtonian and non- Newtonian ow types. In order to investigate the non-Newtonian ...
  • Numerical analysis of film cooling 
    Taştekin, Ömer. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1983., 1983.)
    A numurical model is developed to investigate film cooling in compressible laminar boundary layer flows. This model is applied to the first stagi stator blade of a transonic gas turbine. As a prelude study, film cooling ...
  • 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 ...
  • Numerical analysis of newtonian and non-newtonian lid-driven cavity flow in plane and curved geometries 
    Mercan, Hatice. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The aim of this thesis is to develop a numerical solution to the lid driven cavityproblem in plane and curved geometries for both Newtonian and non-Newtonian fluids. The planar case is the lid-driven square cavity problem ...
  • Numerical analysis of radiative transfer of a non-gray flame using ststistical narrow band method 
    Bilgiç, Melih Hilmi. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Radiative heat transfer plays a signi cant role where high temperature participating gases exists, such as in boilers, jet engines and internal combustion engines. Analysis of such devices should include accurate radiative ...

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