Browsing Makina Mühendisliği by Title

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  • 2-D mathematical modelling of hydrogen storage in metal hydrides 
    Küçük, Gülşad. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this study a numerical model which simulates heat and mass transfer processes of hydrogen absorption in LaNi5 is studied. Energy balance method is used for discretizing the heat equation. Transient heat conduction with ...
  • 2-D modeling of compression ignition engine combustion 
    Yıldırım, Cebrail. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    Internal combustion engines are the cornerstones of our society. They are widely used in a vast range of area from transportation to power generation. Since they are mostly petroleum-powered and emission regulations are ...
  • 3D radial inflow turbine design and analysis for a small scale ORC application 
    Sezerkan, Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    In this study, the aim is to design and analyze a single stage subsonic radial in- ow turbine for the Organic Rankine Cycle system established in Bogazici University Renewable Energy Technologies Laboratory, by using ...
  • A computer simulation study of dislocation motion in the modified Frenkel-Kontorova model 
    Tepebağ, Bülent. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1982., 1982.)
    In this thesis, the motion and vibration characteristics of edge dislocations are investigated. Topics included, are shear stress-dislocation velocity relation; effects of model parameters and phenomenological damping on ...
  • A deterministic approach to transition to turbulance in plane shear flows 
    Atalık, Salim Kunt. (Thesis (Ph.D.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    In this work, a parametrical study of the transition to turbulence in two-dimensional shear flows has been conducted. For this purpose, the solutions of the full two-dimensional Navier-Stokes equations have been investigated ...
  • A finite element analysis for flow in porous media 
    Atalık, Salim Kunt. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1993., 1993.)
    A finite element analysis for porous media is aimed. In the thesis, it is accepted that groundwater flow occurs only in the saturated region of a porous soil. The problem is formulated based on Darcy's law governing ...
  • A framework for the analysis of coupled-physics models using adaptive multi-level techniques 
    Turan, Erhan. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    This object of this study is to develop a computational framework to analyze coupled-physics problems within the context of multi-level methods. Adaptive solution strategies in conjunction with Newton-Krylov and Domain ...
  • A numerical approach for predicting hemodynamic characteristics of 3D aorta geometry under pulsatile turbulent blood flow conditions using fluid-structure interaction 
    Saat, Ahmet. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Cardiovascular diseases are the leading cause of death all around the world and harm the society in terms of economically, socially, and psychologically. Hence diagnosing cardiovascular diseases as early as possible has ...
  • A phenomenological approach to stress corrosion cracking 
    Nehrozoğlu, Mehmet Aydemir. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    The applicability of the J-integral to SSC in the elasticplastic range is investigated by using precracked cantilever beam specimens of low carbon steel in 6N H2S04 solution. The correlation of J-integral with the incubation ...
  • A solution for fully developed turbulent heat transfer in a circular tube with uniform wall temperature, using a continuous velocity profile 
    Merttürk, İbrahim. (Thesis (M.S.) - Robert College. Faculty of Graduate School of Engineering, 1970., 1970.)
    Heat transfer coefficients and temperature profiles for fully developed turbulent pipe flow with uniform wall temperature are predicted for P 1. The continous and differentiable velocity profile of Pai (1)1 is used to ...
  • A strain energy based multiaxial high-cycle fatigue life evaluation model for notched structures 
    Gezer, Burak. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    In this study, a model is presented for high-cycle fatigue-life assessment of notched engineering components subjected to constant amplitude multiaxial proportional loads. The algorithm requires only material-dependent ...
  • A study of manipulator dynamics and control 
    Akmehmet, Asaf. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1984., 1984.)
    In this work, the dynamics and control of a manipulator arm are investigated. Two different forms of the dynamic model of an n degree of freedom manipulator are studied and general computer oriented algorithms are developed ...
  • A study on a thermal power plant modelling and control 
    Tanık, Mustafa. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1984., 1984.)
    In this study, a deterministic mathematical model of Anbarlı. Thermal Power Plant is developed from physcal laws. Resultant model is used to design the steady state regulator for 100.5 MW load level using linear optimal ...
  • A study on parameters affecting the performance of turbulance amplifiers 
    Biringen, Sedat. (Thesis (M.S.) - Robert College. Faculty of Graduate School of Engineering, 1970., 1970.)
    The turbulance amplifier is one of the two pure digital fluidic elements, and operates on the principle that a laminar jet issuing from a cylindrical tube will remain laminar up to a distance of approximately 100 times the ...
  • A study on the optimum design charecteristics of compact heat-exchangers used in aircraft air-conditioning systems 
    Semerciyan, Mikayel. (Thesis (M.S.)- Robert College. Faculty of Graduate School of Engineering, 1961., 1961.)
  • 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.)
  • A system of cracks in an elastic half-plane 
    Alnıak, M. Oktay. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1981., 1981.)
    The plane elastostatic problem of an isotropic elastic half-plane containing an arbitrary system of cracks is considered. Fourier transform technique is employed to obtain the edge dislocation solutions. Using the edge ...
  • A two parameter characterization of edge cracked NiTi shape memory alloy under plane strain conditions 
    Merde, Oğuzhan Fikri. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Shape memory alloys (SMAs) are metallic systems that exhibit reversible, diffusionless, martensitic phase transformation. Employing finite element analyses, the stress fields and crack tip constraints generated are examined ...
  • Accurate thermal characterization and optimization of high lumen led array fixtures 
    Kundakçıoğlu, Haluk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    High lumen light emitting diode (LED) arrays have been preferred in di erent applications due to their low energy consumption. To maintain the performance of LEDs, heat generated by the LED chips should be removed e ectively. ...
  • Active noise control in a duct with flow 
    Yüksel, Osman. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this thesis, active noise control in a duct with ow is investigated. A one dimensional acoustic duct model, in which uid medium inside the duct has a mean ow velocity, is presented. The acoustic duct model is solved ...

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