Browsing by Author "Ecder, Ali."

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  • 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 ...
  • Aerodynamic analysis of a paraglider wing using domain decomposition techniques 
    Başol, Altuğ Melik. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    The flow around a curvature tube is investigated using it as a simple 2D model of a paraglider wing based on the similarity between their top views. The solutions are obtained for five different angle of attacks varying ...
  • Computational analysis of cyclonic separation 
    Sasan, Salour. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Cyclonic separation is a method to remove particles from a uid ow using a vortex for separation. This method of separation can be used to separate ne droplets of liquid or particles from a gas ow. This device is a kind ...
  • Convergence acceleration procedures for the computation of 2-D transonic flows 
    Türk, Uğur (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    This study addresses a novel adaptive time stepping procedure, which leads to selection of larger time steps allowed by the physics of the problem. Information about the gradients of the flow variables can be regarded as ...
  • Coupled analysis of turbomachinery blades 
    Düz, Bülent. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Three-dimensional analysis of uid ow over turbomachinery blades and the deformation of the blades under aerodynamic loads are modeled and simulated using computational techniques. Decomposition into computational sub-domains ...
  • Domain decomposition analysis of aerodynamic coupling 
    Aydın, Özkan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The main objective of this research is the computational modeling and analysis of aerodynamic-coupling effects of multiple bodies in motion in a fluid using domain decomposition techniques. Simulation of such a flow field ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Numerical analysis of multipilicty and transition phenomenon in natural convection 
    Kafil, Hadi. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2015.)
    This research is devoted to the numerical investigation of the transition and multiplicity phenomena in natural convection. The numerical simulation is performed for a 2-D closed domain using FLUENT, a commercial computational ...
  • Numerical analysis of surface-driven non-isothermal viscoelastic flow 
    Kaptan, Yalın. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    The numerical investigations of the moving edge non-isothermal viscoelastic flows are simulated by using two example problems (lid driven cavity (LDC) and rotating disc in a cylindrical enclosure (RDCE) flows) in this ...
  • 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 ...
  • Numerical investigation of high Knudsen number flow in rectangular enclosures 
    Orhan, Mehmet. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Nowadays, enlightening unknown aspects of rarefied gas flow is one of the critical issues of fluid dynamic research to ensure correct and proper operations of manyMicro- Electro-Mechanical-Systems (MEMS). Thermally driven ...
  • Numerical simulation of two phase flow using the homogeneous flow model 
    Dal, Murat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    The objective of this study is to understand physical and numerical modelling aspects of two phase flow occurring in heat exchangers used in domestic refrigerators, and construct a computer model to simulate one dimensional ...
  • Numerical study on airfoils in steady and oscillating streams 
    Özalp, Mehmet Rifat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    In this study, a numerical method has been developed in order to simulate steady and unsteady flow fields around airfoils. The unsteady flow field around the airfoil has been obtained by imposing periodically oscillating ...
  • Parallel and unstructured computation of 2-D and 3-D vortex flows 
    Dayı, Oğuz. (Thesis (M.S)-Bogazici University.Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    Vortex flows are main flows which lead to turbulence phenomenon. Turbulence isa complicated and many-faceted problem of fluid dynamics. These flows have striking and varied spatial organizations. Nearly every flow that can ...
  • Wavelet analysis in computational fluid dynamics 
    Kahraman, Ali Berk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Wavelets are compact functions in space and time which enable easy data com pression through multi-resolution analysis. The compression is done by scattering dif ferent resolution levels of wavelets onto the domain, and ...

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