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Network-of-Zones Model for Stirred Tank with Fractal Impeller

G.M. Mule[1], A.A. Kulkarni[1]
[1]CSIR - National Chemical Laboratory, Pune, Maharashtra, India

Stirred tanks are widely used in the pharmaceuticals, chemical and paint industries for variety of operations. The fractal impeller is an impeller having a novel design, developed by CSIR-National Chemical Laboratory, Pune, India. The power number of fractal impeller is relatively lower ... Mehr lesen

Numerical Analysis of the Flow Structure in the Continuous Casting Two-strand Tundish

M. Warzecha [1], J. Jowsa [1], A. M. Hutny [1], P. Warzecha [1], T. Merder [2]
[1] Czestochowa University of Technology, Czestochowa, Poland
[2] Silesian University of Technology, Katowice, Poland

Calculations were carried out for the water model of the investigated tundish, represented on a scale 1:3. Numerical calculations enable to estimate the fluid flow velocities, pahtlines and other parameters. Calculations were done for two different grids. Based on the results, the flow ... Mehr lesen

Simulation of Incompressible Flow through Rhombohedric Pores

R. Viola[1][3], F. Zama[2], M.Tuller[3], and E. Mesini[1]

[1]DICMA, University of Bologna, Bologna, Italy
[2]Dep. of Mathematics, University of Bologna, Bologna, Italy
[3]Dep. of Soil, Water, and Environmental Science, University of Arizona, Arizona, USA

Advances in visualization and discretization of pore structures by means of Computed Tomography, and rapidly increasing computational capabilities, allow numerical modeling of pore-scale fluid flow based on the incompressible Navier-Stokes equations rather than using a macroscopic ... Mehr lesen

Prism Coupling of Light in Optical Waveguides

J.T. Andrews, R.R. Kumar, and P.K. Sen
Department of Applied Physics, S G S Institute Technology & Science, Indore, Maharashtra, India

We report the results of simulation showing light coupling in waveguides through prism coupling method. Prism coupling method of light coupling in waveguides is a dominant method adopted by photonic device fabricators. It is necessary to understand the effect various parameters on light ... Mehr lesen

Modeling of the Photo-Mechanical Response of Liquid-Crystal Elastomers

G. Cerretti[1], J.-C. Gomez-Lavocat[1][2], K. Vynck[1], D.S. Wiersma[1][3]
[1]European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Sesto Fiorentino, Italy
[2]The Institute of Photonic Sciences (ICFO), Mediterranean Technology Park, Castelldefels, Spain
[3]Istituto Nazionale di Ottica (INO), National Research Council (CNR), Florence, Italy

Liquid-crystal elastomers (LCEs) [1] have attracted a great attention in recent years due to their high potential in a wide range of applications, from microfluidics components [2] to artificial muscles [3]. The photo-mechanical response of LCEs is due to their constitutive photo ... Mehr lesen

Modeling the Interaction of Light with Plasmonic Nanoparticles

T. Gál[1], Ö. Sepsi[1], P. Koppa[1]
[1]Budapest University of Technology and Economics, Budapest, Hungary

Plasmonic nanoparticles have received increased interest due to their numerous potential applications in the field of optics and optoelectronics. Currently such metallic nanoparticles are applied in semiconductor devices, such as light emitting diodes (LEDs) and solar cells. The optical ... Mehr lesen

Modeling of Highly Stable Thermal Environment Using COMSOL

A. Alfauwaz, and K. Sun
Stanford University, Stanford, CA, USA

Precise physics experiments in space require highly stable thermal environments, especially if the experiments are targeted in earth orbits where eclipses will cast large temperature variation. We have been designing and modeling a thermal system with sub micro-kelvin stability using ... Mehr lesen

Computational Simulation of Gold Core/Shell Nanostructures for Near-Field Transducers in Heat-Assisted Magnetic Recording

J. Bennington[1]
[1]Queen's University Belfast, Belfast, Northern Ireland, UK

A recurring problem, in heat assisted magnetic recording is the build-up of thermal energy in the near-field transducer leading to NFT deformation and the cessation of operation. A mechanism to dissipate this excess heat in the NFT without greatly effecting its’ plasmonic response is ... Mehr lesen

Comparison of Finite Element and Monte Carlo Simulations for Inhomogeneous Advanced Breast Cancer Imaging

Y. Xu, and Q. Zhu
University of Connecticut, Storrs, CT, USA

Three-dimensional FEM method provided by COMSOL is used to model an inhomogeneous advanced breast tumor of different optical properties for outer layer and inner core in a semi-infinite medium. The running time of FEM by COMSOL for one source and 14 detectors is 17.658s and which of ... Mehr lesen

Motion of Uncharged Particles in Electroosmotic Flow through a Wavy Cylindrical Channel

N. Qudus[1], T. Mahbub[1], S. A. Ali[1], and M. Shajahan[1]
[1] Bangladesh University of Engineering and Technology, Dhaka Bangladesh

A finite element model is employed to describe the electric potential distribution and electroosmotic flow field inside a wavy cylindrical channel. The model uses coupled Laplace and Poisson-Boltzmann to evaluate the electric potential distribution inside the channel. It also contains ... Mehr lesen

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