Rensselaer Polytechnic Institute, Troy, NY, USA
Experimental data for oscillations occurring at the three phase contact line of an evaporating HFE 7000 meniscus on a silica substrate is presented. The frequency of the oscillations were found to depend on the local value of the evaporative heat ?ux. The thickness, slope, and curvature of the vapor-liquid interface were determined using an interferometry technique, which allowed us to calculate ...
S. Skoda, E. Robalinho, E. F. Cunha, M. Linardi
Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP, São Paulo, SP, Brazil
Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil
The use of numerical techniques in PEM fuel cell sensoring represents an advantage of project engineering, reducing the costs and accelerating the manufacturing of prototypes. In this work some numerical responses are shown, relating to numerical sensoring of water and oxygen mole fractions at cathode of a 5 cm² of geometric area PEM fuel cell. The need to recognize a geometric figure of merit ...
Eindhoven University Of Technology, Eindhoven, The Netherlands
Windows are the thermal weakest places in the external envelop of buildings. This is true for historic windows with original single pane glazing in historic buildings. To reduce the energy consumption and to improve thermal comfort of historic buildings, replacing these windows by modern double glazed windows affects the authentic character of these buildings too much. One way to improve the ...
A. Cockx, R. Degrave, P. Schmitz
University of Toulouse, Toulouse, France
This study deals with the 3D modeling of a light photocatalytic textile. This process aims to decontaminate industrial effluents such as water with pesticides. The present study describes the implementation of a reactive transport model in a computational fluid dynamics model developed on a Representative Volume Element (RVE) of the textile, i.e. at the microscopic scale. The final ...
H. Cremasco, K. Angilelli, D. Borsato
Universidade Estadual de Londrina, Londrina, Paraná, Brazil
The transfer of sucrose and fructooligosaccharides to melon and water to solution was modeled based on generalized form of Fick’s second law for simultaneous diffusion and resolved by the finite element method using the software package COMSOL Multiphysics® software. The diffusion coefficients, the mass transfer coefficient and the Biot number were determined using the simplex ...
M. Yang, A. Young, and B. Crittenden
Department of Chemical Engineering University of Bath, Bath, United Kingdom
A small batch stirred cell which is operated at temperatures up to 400 °C and pressures up to 30 bar is used to study fouling behaviors of selected crude oils. COMSOL Multiphysics package is used for the CFD (Computational Fluid Dynamics) and heat transfer modeling for this stirred cell system. The simulation results are validated against the measured temperature data at various axial ...
R. Cumeras, I. Gràcia, E. Figueras, L. Fonseca, J. Santander, M. Salleras, C. Calaza, N. Sabaté, and C. Cané
Instituto de Microelectrónica de Barcelona, Barcelona, Spain
A micro Planar Ion Mobility Spectrometer (P-FAIMS) has been simulated using multiphysics software. In P-FAIMS target ions are discriminated by the application of the proper separation voltages to the electrodes of the system. Modelling of vapour phase ions of two compounds have been studied for different values of electric field amplitude to gas number density (E/N) ratio: a health risky volatile ...
C. Wylock, S. Goffin, M. Aubinet, B. Longdoz, B. Haut
Université Libre de Bruxelles (ULB), Transfers, Interfaces and Processes (TIPs), Brussels, Belgium
University of Liège-Gembloux Agro-Bio Tech, Unit of Biosystem Physics, Gembloux, Belgium
INRA, Centre INRA de Nancy, UMR1137 Ecologie et Ecophysiologie Forestières, Champenoux, France
The assessment of forest soil respiration and its isotopic composition is one of the important issues for the carbon cycling modeling (greenhouse gas emission control) because it is often inaccurate. Soil respiration is a complex process, depending on the coupling of several phenomena, which is therefore highly sensitive to any disturbance. In this work, the dynamics of the transport of two ...
V. Nicolas, C. Doursat, D. Grenier, T. Lucas, D. Flick
Institut de recherche en sciences et technologies pour l'environnement et l'agriculture, Rennes, France
AgroParisTech, UMR1145 Ingénierie Procédés Aliments, Massy, France
Bread is a food product which various complex physico-chemical phenomena occur during the cooking process. Thus, phenomena of heat and mass transfer are coupled to the deformation. In addition, bread is a multiphase product (solid, liquid and vapor) and composed of various components (dry matter, water, air and carbon dioxide). A 2D model is developed with COMSOL Multiphysics® 4.3b witch ...
C. Soares, N. Padoin, F. Montalvo, D. Cobra
Federal University of Santa Catarina, Florianópolis, SC, Brazil
CERTI Foundation, Florianópolis, SC, Brazil
Schistosoma mansoni parasites affect million people worldwide. The intensity of the infection can be evaluated by the number of eggs present in the stool of an infected individual. The application of the traditional methods has been regarded as impractical in developing areas and there is a continuous search for new techniques. In face of this scenario, a new method of diagnosis was explored in ...