INFN/LNL, Laboratori Nazionali di Legnaro, Legnaro, Italy
Many scientific instruments are based on high vacuum equipment with a gas pressure maintained in the order of 1 Pa or below. The gas flow in the low pressure limit, called the molecular flow regime, is a case of transport with zero viscosity. The ability to solve an integral equation on the boundary with finite elements methods allows us to find the gas densities and flows in the ...
3M Canada Company, London, Ontario, Canada
The collection efficiency of aerosol particles on a ribbon in a turbulent flow is analyzed using COMSOL Multiphysics. The flow field is solved using Chemical Engineering module and particle tracing plots are obtained using equations of motion including Khan and Richardson drag force. A MATLAB script is used to count the captured particles on the ribbon and determine the capture efficiency with ...
Louisiana State University, Health Sciences Center, Shreveport, LA, USA
Steven Conrad received his MD degree from Louisiana State University in 1978, and his PhD degree in Biomedical Engineering from Case Western Reserve University in 1985. His clinical practice includes intensive care and emergency medicine, and his research interests include computational dynamics and bioinformatics. He has worked with dynamic models of gas transport in artificial lungs, and more ...
S. Druart, D. Flandre, and L.A. Francis
Université catholique de Louvain - ICTEAM, Louvain-la-Neuve, Belgium
In this paper, a methodology to simulate the electric behavior of spiral inductances is presented and discussed. All the methodology is built with the COMSOL software used with the Matlab scripting interface and then allows performing fully parameterized simulations. The program architecture is explained and is used to simulate two applications. The first calculates the voltage induced by an ...
BD Medical - Medical Surgical Systems, Helsingborg, Sweden
Anders B Nilsson graduated M. Sc. in engineering physics from Lund University in Sweden. He has been working in the R&D department at BD Medical as principal engineer and project leader since 2005. He uses COMSOL for a wide range of functions, such as early concept development and qualification of products.
Thermal Modelling For The Implementation Of An Energetic Efficiency Control System In A Room Of Meetings Of Singular Geometry
M. Martínez, V. Fuster, J. Fernández, and I. Benítez
Instituto Tecnológico de la Energía (ITE), Paterna, Valencia, Spain
The aim of this Project is to obtain a temporary and spatial evolution model of the temperature into a meeting room with the aim to develop an efficient energy mechanism which can improve the air conditioner control system. The project has considered two extremes cases: on the one hand a typical summer day and on the other hand a winter day. From annual data of the Institute weather station a ...
E. Zinterl, and G. Jakopic
JOANNEUM RESEARCH Forschungsgesellschaft mbH,
MATERIALS-Institute for Surface Technologies and Photonics
Heating or cooling of stored fluids by thermal energy exchange with the enclosing walls may be enhanced by improving the efficiency of energy transfer; energy loss to the ambient is equalized for all simulations. Buoyancy driven internal natural convective flow is assumed to be the main energy transfer mechanism. In Newtonian fluids dynamic behaviour is described by the Navier-Stokes ...
N. Lemcoff, R. Pastor, and E. Miravete
Rensselaer Polytechnic Institute, Hartford, CT
General Dynamics Electric Boat, Groton, CT
The objective of this study is to numerically evaluate the effectiveness of an energy recovery ventilator (ERV) during the summer and winter seasons. The energy recovery ventilator allows heat and mass transfer between two air streams separated by a membrane. The effects of varying the following parameters were examined: flows through the supply and exhaust ducts, height of the exhaust channel, ...
A. Beaucamp, R. Freeman, and Y. Namba
Chubu University, Kasugai, Japan
Zeeko Ltd, Coalville, UK
In the Fluid Jet Method, a polishing fluid is compressed and delivered through a nozzle, allowing the spot area to become continuously replenished with abrasives and coolant. Process parameters include: Abrasive type and concentration, Inlet pressure, Nozzle diameter, Impingement angle, Surface feed of spot. The simulation uses COMSOL’s turbulent 2-phase flow model, with the incompressible ...
A.H. Ito, O.T. Kaminata , S.R. Lautenschlager
State University of Maringá, Maringá, Paraná, Brazil
The hydraulic flocculates are employed in water treatment plants (WTPs), but may present problems during the mixing stage reducing the efficiency of treatment. In this context modeling of a hydraulic flocculate using COMSOL and a 1:10 scale model of the Maringá-PR Brazil city WTP flocculate was done. The WTP flocculate is shown in figure 1 and the model illustrating the acrylic flocculate ...