J.C. Boulware, and S. Jensen
Space Dynamics Laboratory, North Logan, UT, USA
Using COMSOL Multiphysics, studies were performed showing that thermomagnetic siphoning (TMS) is a sufficient manner of regulating the temperature of a bundle of current-carrying wires wrapped with a magnetorheological fluid (MRF) jacket. Because of Curie’s Law, the cooler MRF on the outside of the jacket is drawn towards the wires due to the induced magnetic field. The process continually ...
Israel Military Industry, Ramat-Hasharon, Israel
Because of its high enthalpy of combustion, aluminum has been added to energetic materials. In this paper, a two dimension thermal model is developed and assessed to describe the interrelated processes of Aluminum particle oxidation by using the software COMSOL Multiphysics. The thermal model consists of thermal radiation, forced convection and thermal conduction and oxygen diffusion. It is ...
Laminar Fluid Flow and Heat Transfer Studies of an Electrical Conducting Fluid Subject to Combined Electric and Magnetic Fields
E. Gutierrez-Miravete, T. DePuy, and X. Xie
Rensselaer at Hartford, Hartford, CT
Pratt & Whitney, East Hartford, CT
The flow of electrically conducting fluids such as liquid metals is significantly affected by applied electric and magnetic fields. The effect has important industrial applications in metallurgy, nuclear technology and other fields. This paper described results of a series of studies designed to investigate the capabilities of COMSOL Multiphysics to accurately simulate the steady laminar flow ...
A. Amardas , and S. Dwivedi
 Institute for Plasma Research, Gandhinagar, Gujarat, India
 COMSOL Multiphysics Pvt. Ltd, Bangalore, Karnataka , India
In this paper, detail magnetostructural analysis of fusion grade superconducting toroidal field coils that are used in ‘tokamaks’ is presented. The stresses that arise due to Lorentz forces in large size superconducting coils that carry high currents are of catastrophic type in nature. These stresses are expected to influence the integrated performance of the magnet system. In this ...
F. Lugli and F. Zerbetto
Department of Chemistry “G. Ciamician”, Università di Bologna, Bologna, Italy
A small particle or a nano-sized object placed in a liquid is subject to random collisions with solvent molecules. The resulting erratic movement of the object is known as Brownian motion, which, in nature, cannot be used to any practical advantage both in natural systems (such as biomolecular motors) or by artificial devices. If energy is supplied by external source or by chemical reactions, ...
B. Hari and C. Theodoropoulos
The University of Manchester, School of Chemical Engineering and Analytical Science, Manchester, UK
Microreactors are important alternative to conventional reactors in chemistry, chemical, pharmaceutical and semiconductor industries due to their operation characteristics such as increased mass and heat transfer, uniform flow, safety, high throughput through array configurations, smaller plant size and lower cost of production. Models for such reactors need to be able to describe both the ...
G. Louarn, M. Collet, and S. Cuenot
Institut des Matériaux Jean Rouxel, Nantes
In this work, we present the modeling of V-shaped silicon micro-cantilevers. The sensitivity of different V-shaped silicon cantilevers is estimated, as a function of the geometrical dimensions of the cantilever.
Chinese Academy of Sciences, Institute of Electrical Engineering, Beijing, China
Magnetoacoustic tomography with magnetic induction (MAT-MI) is a recently introduced method for imaging electrical impedance properties, which integrates classic electrical impedance tomography and ultrasonic technique. It could provide an explicitly reconstructed electrical impedance distribution with high spatial resolution and contrast, eliminating the shielding effects of insulating tissues. ...
D. Pugal, K. Kim, and A. Aabloo
ME Department, University of Nevada Reno, Reno, NV
University of Tartu, Tartu, Estonia
Modeling electromechanical actuation of ionic polymer-metal composite (IPMC) material is considered in this work. Ionic current in the polymer is described with the Poisson-Nernst-Planck system of equations. Calculated ionic concentration is related to the deformation of the material. To include the effect of the electrodes, the ionic current and the electric current in the electrode domains is ...
Finite Element Modeling and Simulation of Electromagnetic Forces in Electromagnetic Forming Processes: Case studies using COMSOL Multiphysics
A. N. Kumar, and M. Nabi
 Department of Electrical Engineering, Indian Institute of Technology Delhi, India
Electromagnetic Forming (EMF) is a promising and relatively new manufacturing technology having significant advantages over conventional forming processes. A primary characteristic of this process is use of noncontact electromagnetic forces to achieve forming and shaping of various metal work pieces. Mechanically, this is a high-strain rate forming process. From the modeling and simulation ...