Manyeto Hidrodinamik Akış İçin Projeksiyona-Dayalı-Kararlı Metodonun Sayısal İncelemesi.

Propagation of ionizing short laser pulses in a nonlinear optical medium Deveci, Atalay; Yedierler, Burak; Department of Physics (2021-2-15) Using a pseudo-spectral method that is split step Fourier method, obtaining a solutionfor propagation of ionizing short Gaussian pulse would be computationally inexpen-sive and practical. For a solution obtained by using split step Fourier method, themost important parameter to choose is step size. However, using either large or smallstep size may yield different numerical errors in the final result. For a large step size,general evolution of the Gaussian pulse could be predicted well but small changesmigh...
Radar propagation modelling using the split step parabolic equation method Türkboyları, Alpaslan; Koç, Seyit Sencer; Department of Electrical and Electronics Engineering (2004) This document describes radar propagation modelling using split step parabolic wave equation (PWE) method. A computer program using Fourier split-step (FSS) marching technique is developed for predicting the electromagnetic wave propagation in troposphere. The program allows specification of frequency, polarization, antenna radiation pattern, antenna altitude, elevation angle and terrain profile. Both staircase terrain modelling and conformal mapping are used to model the irregular terrain. Mixed Fourier tr...
DRBEM solutions of cauchy problem for the magnetohydrodynamic duct flow Aydın, Cemre; Tezer-Sezgin, Münevver,; Department of Mathematics (2020) In this thesis, the direct and inverse problems of the MHD flow in rectangular ducts are solved in terms of the velocity of the fluid and the induced magnetic field by using the Dual Reciprocity Boundary Element Method (DRBEM). The two-dimensional, steady flow of a viscous, incompressible, and electrically conducting fluid is considered under the effect of an externally applied mangetic field. The duct wall conditions for the MHD flow ranges from the no-slip to slip and insulated to perfectly conducting. In...
Formulation of a beam finite element for micro beams Pehlivanoğlu, Yücel; Kadıoğlu, Fevzi Suat; Department of Mechanical Engineering (2018) This study presents an Euler Bernoulli type micro-beam finite element for analyzing the size-dependent static and dynamic behavior of micro beams. The new element is based on Modified Couple Stress Theory (MCST). The governing equations of motion and the boundary conditions for the beam are derived and the conventional Galerkin technique is employed to formulate the finite element. The new element can be reduced to Classical Euler-Bernoulli beam element if the size-effect parameter in the element matrices i...
Performance evaluation of magnetic flux density based magnetic resonance electrical impedance tomography reconstruction algorithms Eker, Gökhan; Eyüboğlu, Behçet Murat; Department of Electrical and Electronics Engineering (2009) Magnetic Resonance Electrical Impedance Tomography (MREIT) reconstructs images of electrical conductivity distribution based on magnetic flux density (B) measurements. Magnetic flux density is generated by an externally applied current on the object and measured by a Magnetic Resonance Imaging (MRI) scanner. With the measured data and peripheral voltage measurements, the conductivity distribution of the object can be reconstructed. There are two types of reconstruction algorithms. First type uses current de...

Citation Formats

S. Kaya Merdan, “Manyeto Hidrodinamik Akış İçin Projeksiyona-Dayalı-Kararlı Metodonun Sayısal İncelemesi.,” 2012. Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/58636.