A new finite element method for eletromagnetic boundary value problems in combined interior and exterior regions.

Kuzuoğlu, Mustafa


Investigation of nonplanar perfectly matched absorbers for finite-element mesh truncation
Kuzuoğlu, Mustafa (1997-03-01)
In this paper, we present a detailed theoretical and numerical investigation of the perfectly matched layer (PML) concept as applied to the problem of mesh truncation in the finite-element method (FEM), We show that it is possible to extend the Cartesian PML concepts involving half-spaces to cylindrical and spherical geometries appropriate for closed boundaries in two and three dimensions by defining lossy anisotropic layers in the relevant coordinate systems, By using the method of separation of variables,...
A methodology for designing tonpilz-type transducers
Çepni, Kerim; Baker, Derek Keıth; Çalışkan, Mehmet; Department of Mechanical Engineering (2011)
Tonpilz-type transducers are the most commonly used projectors in underwater acoustic applications. However, no complete design approach is available in the literature for such transducers. The present study aims to fill this gap in the literature by providing a systematic design approach for the Tonpilz-type transducers. The proposed methodology involves the use of different analytical models and a finite element model of such transducers. Each model provides a different level of accuracy that is tightly c...
A boundary element method for axisymmetric elastodynamic analysis
Özkan, Gonca; Mengi, Yalçın; Karaesmen, Engin; Department of Engineering Sciences (1995)
A two-dimensional time-dependent Euler solver for moving boundaries in cartesian grids applied to injection driven internal flows
Pekkan, Kerem; Üçer, Ahmet Ş.; Department of Mechanical Engineering (2000)
A Novel Numerical Technique for Analyzing Metasurfaces
ÖZGÜN, ÖZLEM; Mittra, Raj; Kuzuoğlu, Mustafa (2019-12-31)
This work presents a novel technique for efficient numerical modeling of electromagnetic scattering from metasurfaces comprising of truncated periodic or locally-varying quasi-periodic surfaces. The proposed technique hybridizes the periodic Finite Element Method (FEM) with the Method of Moments (MoM) to develop an algorithm far more efficient than conventional numerical methods for electromagnetic scattering from arbitrary objects. The key feature of the proposed algorithm is that it takes advantage of the...
Citation Formats
M. Kuzuoğlu, “A new finite element method for eletromagnetic boundary value problems in combined interior and exterior regions.,” Ph.D. - Doctoral Program, Middle East Technical University, 1986.