Simulo Technologies, Lagos, Nigeria
A qualitative flow analysis by numerical simulation of a fermentation process in a sorghum factory is presented. The simulations were done with the Numerical modeling software, COMSOL Multiphysics. Several flow arrangements were considered in the study and as a result, optimized flow configurations were evolved.
Z. Huang, and P. Conway
Wolfson School of Mechanical and Manufacturing Engineering
This paper presents models of microstructures using COMSOL Multiphysics. In particular, solder joints and bumps are investigated and diffusion of species from the substrate to the interface.
A. Schwen, G. Bodner, A. Schnepf, D. Leitner, G. Kammerer, and W. Loiskandl
Institute of Hydraulics and Rural Water Management, Univ. Natural Resour. Appl. Life Sci., BOKU, Wien, Austria
Institute of Agronomy and Plant Breeding, Univ. Natural Resour. Appl. Life Sci., BOKU, Wien, Austria
Institute of Soil Science, Univ. Natural Resour. Appl. Life Sci., BOKU, Wien, Austria
Modeling soil water dynamics requires an accurate description of soil hydraulic properties, i.e. the retention and hydraulic conductivity functions. Generally, these functions are assumed to be unchanged over time in most simulation studies. In this paper, we implemented temporal changes in the soil hydraulic properties in a Richards’ equation simulation of soil water dynamics. Based on ...
Institut für Mikrotechnik Mainz, Fluidik und Simulation, Mainz
The development of micro-TAS, Lab-on-a-Chip-systems and micro-reactors relies on the extensive use of computational fluid dynamics (CFD). The presentation aims to highlight specific µ-fluidic features, adequate simulation methods and benefits in context with the design of microfluidic systems. A case study discusses the modeling and characterization of a microfluidic device combining ...
I. Mozjerin, T. Gibson, and N.M. Litchinitser
Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, New York, USA
Metamaterials are a new class of artificial materials, which possess various unusual properties. One of these properties is a negative index of refraction produced by setting both the dielectric permittivity ε and the magnetic permeability μ of the material less than zero. Unique electromagnetic phenomena occurring at the interface between negative-index materials and conventional ...
L. Yuan and P.C. Pedersen
Department of Electrical and Computer Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
Finite element models using COMSOL Multiphysics and MATLAB were developed to solve the problem of stress distribution interior homogeneous, isotropic, incompressible elastic solid material under known vertical external compression with a rectangular contact surface. Moreover, comparison between these results and analytical solutions was used to further validate that stress drops off with ...
Image-based Simulation of Electrical Impedance Techniques Applied on the Human Thorax for Cardio-pulmonary Applications
A. Harkara, R.M. Heethaar, R.T. Cotton, and F.K. Hermans
Simpleware Ltd., Exeter, UK
VU University Medical Center, Amsterdam, Netherlands
For medical diagnostic purposes there is an increasing need for non-(or minimal) invasive techniques to measure all kinds of parameters that can provide insight in the functioning of cells, organs or organ systems. Currently, Impedance Cardiography (ICG) is used for measurements of the heart and Electric Impedance Tomography (EIT) is used for investigating lung tissue condition. The PDE is ...
G. Galgana, P. McGovern, and E. Grosfils
Lunar and Planetary Institute, Houston, Texas, USA
Pomona College, Claremont, California, USA
We present an implementation of the Structural Mechanics module of COMSOL Multiphysics to model the state of stress associated with the emplacement of large volcanic edifices on the surface of a planet. These finite element models capture two essential physical processes: (1) Elastic flexure of the lithosphere beneath the edifice load, and (2) Pressurization of a magma-filled chamber that serves ...
T. Müller, and H. Haase
Universität Hannover, Institut für Grundlagen der Elektrotechnik, Hannover
Bei herkömmlichen Verbrennungsmotoren werden die Ein- und Auslassventile für Kraftstoff-Luft-Gemisch und Abgase nach wie vor rein mechanisch durch Nockenwellen gesteuert. Die Verwendung voneinander unabhängiger Ventilaktoren ermöglicht eine hohe Effizienzsteigerung. Zur Abschätzung des konstruktiven Aufwands eines Aktors auf Basis magnetischer Formgedächtnismetalle wird ein einfaches ...
G. Debenest, and M. Quintard
Institut de Mécanique des Fluides de Toulouse
Flows in highly heterogeneous media are found in many practical fields, such as hydrology, petroleum engineering, and chemical engineering. The case of two-region heterogeneous media (fractured media, catalytic beds, etc.) plays a fundamental role. The different questions associated to this specific case are illustrated in this paper for two different kinds of transport: (i) flow of a slightly ...