J. H. K. Haertel , K. Engelbrecht , B. S. Lazarov , O. Sigmund ,
 Technical University of Denmark, Roskilde, Denmark
 Technical University of Denmark, Kgs. Lynby, Denmark
1. Introduction The topology optimization method is becoming increasingly popular as a design tool for multiphysics systems [1,2]. Topology optimization of fluid-thermal systems has been presented for example in  for forced convective heat transfer and in  for natural convection problems. In this work, topology optimization including density filtering and projection is applied to ...
L. P. Aoki, H. E. Schulz, M. G. Maunsell
University of São Paulo, São Carlos, SP, Brazil
This article considers a closed water circuit with square cross section filled with an electrolyte fluid. The conductor fluid was moved using an electromagnetic pump, in which a permanent magnet generates a magnetic field and electrodes generate the electric field in the flow. Thus, the movement is a consequence of the magnetohydrodynamic (or MHD) effect. The model adopted here was derived from ...
E. Varadarajan, M. Bhanusri,
Research and Innovation Centre (RIC), IITM Research Park, Chennai, Tamil Nadu, India
Department of Physics, Indian Institute of Technology (IIT) Madras, Chennai, Tamil Nadu, India
In this paper we made an attempt to maximize the power output in the different piezoelectric materials in a unimorph cantilever beam configuration. In this research, a macro scale unimorph piezoelectric power generator prototypes consists of an active piezoelectric layer, stainless steel substrate and titanium proof mass was designed for frequencies 60 Hz - 200 Hz. An analytical model of a micro ...
D. Nguemalieu. Kouetcha , H. Ramezani , N. Cohaut ,
 Université d’ Orléans, ICMN, UMR CNRS, Orléans France
 Ecole Polytechnique de l' Université d’ Orléans, Orléans, France
The accurate atomic potential determination is an essential task in the molecular simulations, e.g. Grand Canonical Monte Carlo (GCMC). The ab initio simulations using the quantum mechanics would of great interest in the computational physical chemistry. The numerical simulation of the adsorption phenomenon requires knowing the interactions parameters between the atoms that make up the systems ...
S. Sharma , Y. Pachuary , S. N. Akhtar , J. Ramkumar ,
 Indian Institute of Technology Kanpur, Kanpur, India
 Indian Institute of Information Technology, Design and Manufacturing, Jabalpur, India
 Integral University, Lucknow, India
Laser drilling of titanium and its alloys is widely used in aerospace industry, as it offers selective removal of material at high accuracy and speed. However, laser drilling often inherits defects such as large heat affected zone, micro cracks and recast layer. These defects depend upon complex melting and solidification phenomena happening due to interaction of high-intensity laser with the ...
A. Kermani ,
 Veryst Engineering LLC, Needham, MA, USA
Indoor ventilation with good air quality control prevents infection with minimizing the spread of airborne respiratory and other infections in hospitals. CFD can be utilized to optimize flow pattern in clean rooms especially hospital clean rooms. More than two million people in Europe are infected due to Health-care Associated Infection (HAI) (Pittet et al., 2005). It is believed that transfer ...
B. Baumann, J. Schwieger, M. Wolff, F. Manders, J. Suijker
Hamburg University of Applied Sciences, Hamburg, Germany
Philips Lighting, Turnhout, Belgium
High-intensity discharge lamps will in the foreseeable future be important light sources despite a growing market share of LEDs. Cost and energy efficient high frequency (300 kHz) operation is hampered by the excitation of acoustic resonances inside the arc tube, which results in low frequency (10 Hz) light flicker. Our aim is to calculate the acoustic streaming velocity field, which is related ...
N. Elabbasi, J. Bergstrom, and S. Brown
Veryst Engineering, LLC.
Peristaltic pumping is an inherently nonlinear multiphysics problem where the deformation of the tube and the pumped fluid are strongly coupled. We used COMSOL Multiphysics to investigate the performance of a 180 degree rotary peristaltic pump with two metallic rollers, and an elastomeric tube pumping a viscous Newtonian fluid. The model captures the peristaltic flow, the flow fluctuations ...
R. Jia, J. Hu, X. Xiong
Department of Mechanical Engineering, University of Bridgeport, Bridgeport, CT, USA
Department of Electrical and Computer Engineering, University of Bridgeport, Bridgeport, CT, USA
Plate fin heat exchangers are widely used for heat recovery or cooling purposes in many industries, such as cryogenics, aerospace and automobile industries. This paper developed a numerical model to simulate the heat transfer and fluid flow in a counter flow plate fin heat exchanger and optimize its design parameters. The conjugate heat transfer in the finned plate and fluids in the channels ...
K.-H. Leitz , P. Singer , A. Plankensteiner , B. Tabernig , H. Kestler , L. S. Sigl ,
 Plansee SE, Reutte, Austria
Selective Laser Melting (SLM) offers great potential for future manufacturing technology. In order to extend its applicability for the processing of high melting materials like molybdenum fundamental process understanding is required. This can be obtained by multiphysical simulations that allow a look into the process. In this contribution a thermo-fluiddynamical simulation model for laser beam ...