Hexahedral mesh smoothing by means of particle swarm optimization

Date

2007-06-13

Author

Yilmaz, Asim Egemen
Kuzuogluz, Mustafa

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

133
views

0
downloads

The main aim in this work is the smoothing and improvement of all-hexahedral mesh -especially created for the finite element method- by means of the Particle Swarm Optimization (PSO) technique. The optimization is performed by using various objective functions derived from several hexehadral element quality metrics. The proposed method is tested over some problems encountered in the electromagnetic theory.

URI

https://hdl.handle.net/11511/65452

DOI

https://doi.org/10.1109/siu.2007.4298804

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Fully Coupled Smoothed Particle Hydrodynamics-Finite Element Method Approach for Fluid-Structure Interaction Problems With Large Deflections Dincer, A. Ersin; Demir, Abdullah; Bozkuş, Zafer; Tijsseling, Arris S. (ASME International, 2019-08-01) In this study, a combination of the smoothed particle hydrodynamics (SPH) and finite element method (FEM) solving the complex problem of interaction between fluid with free surface and an elastic structure is studied. A brief description of SPH and FEM is presented. Contact mechanics is used for the coupling between fluid and structure, which are simulated with SPH and FEM, respectively. In the proposed method, to couple meshfree and mesh-based methods, fluid and structure are solved together by a complete ...
Kriging regression of PIV data using a local error estimate de Baar, Jouke H. S.; Perçin, Mustafa; Dwight, Richard P.; van Oudheusden, Bas W.; Bijl, Hester (2014-01-01) The objective of the method described in this work is to provide an improved reconstruction of an original flow field from experimental velocity data obtained with particle image velocimetry (PIV) technique, by incorporating the local accuracy of the PIV data. The postprocessing method we propose is Kriging regression using a local error estimate (Kriging LE). In Kriging LE, each velocity vector must be accompanied by an estimated measurement uncertainty. The performance of Kriging LE is first tested on syn...
Mesoscopic nonequilibrium thermodynamics treatment of the grain boundary thermal grooving induced by the anisotropic surface drift diffusion Akyildiz, Oncu; ÖREN, ERSİN EMRE; Ogurtani, Tarik Omer (2011-09-01) A systematic study based on the self-consistent dynamical simulations is presented for the grain boundary thermal grooving problem by strictly following the irreversible thermodynamic theory of surfaces and interfaces with singularities [T. O. Ogurtani, J. Chem. Phys. 124, 144706 (2006)]. This approach furnishes us to have auto-control on the otherwise free-motion of the grain boundary triple junction without presuming any equilibrium dihedral (wetting) angles at the edges. The effects of physicochemical pr...
Dielectrophoresis in microfluidics technology ÇETİN, BARBAROS; Li, Dongqing (2011-09-01) Dielectrophoresis (DEP) is the movement of a particle in a non-uniform electric field due to the interaction of the particle's dipole and spatial gradient of the electric field. DEP is a subtle solution to manipulate particles and cells at microscale due to its favorable scaling for the reduced size of the system. DEP has been utilized for many applications in microfluidic systems. In this review, a detailed analysis of the modeling of DEP-based manipulation of the particles is provided, and the recent appl...
A Numerical Model for Investigating the Effect of Rough Surface Parameters on Radar Cross Section Statistics Kuzuoğlu, Mustafa (2017-07-14) Electromagnetic scattering from rough surfaces is modeled by combining the periodic finite element method and the transformation electromagnetics approach. The behavior of the radar cross section (RCS) at both specular and backscattering directions is analyzed as a function of rms height and correlation length with the help of Monte Carlo simulations. The concept of backscattering enhancement is illustrated, and some conclusions are drawn about the RCS statistics.

Citation Formats

A. E. Yilmaz and M. Kuzuogluz, “Hexahedral mesh smoothing by means of particle swarm optimization,” 2007, p. 33, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65452.