Simeon Cavadias , Cédric Guyon , Gerrardo Vera De la Cruz ,
 Institut Pierre-Gilles de Gennes (IPGG) - UPMC, France
 Chimie-ParisTech - Institut Pierre-Gilles de Gennes (IPGG) , France
 Master Nuclear Energy, ISTN (Saclay), France
Emulsions, small liquid droplets of oil in water or water in oil, find wide application in, pharmaceutical products, fine chemicals, analytical chemistry. Microfluidic devices allow creation of uniform droplets with a tight distribution. The COMSOL Multiphysics® software model presented here is an extension of the tutorial “Droplet Breakup in a T- junction”. In this tutorial uniform droplets ...
R. M. Azoor , R. N. Deo , N. Birbilis , J. K. Kodikara ,
 Department of Civil Engineering, Monash University, Clayton, VIC, Australia
 Department of Materials Science and Engineering, Monash University, Clayton, VIC, Australia
A finite element model for underground corrosion is presented. The model is capable of predicting regions experiencing high levels of corrosion due to differential aeration and helps identify "corrosion hotspots" where physical examination of the buried asset is not feasible. Verification of the model is done through experimental results and empirical relationships on underground corrosion ...
B. Chinè, M. Monno, E. Repossi, M. Verani
Laboratorio MUSP Piacenza, Italy; ITCR, Esc. Ciencia e Ing. Materiales, Cartago, Costa Rica
Laboratorio MUSP, Piacenza, Italy; Politecnico di Milano, Dip. Meccanica, Milano, Italy
Politecnico di Milano, MOX-Dip. Matematica, Milano, Italy
The foaming process of a metal is a complex operation which needs to be closely controlled in order to guarantee the wanted properties, by avoiding the formation of defects in the structure of the material. In this work we use COMSOL Multiphysics® version 4.3b and apply the diffuse interface methods of the phase field technique available in the CFD module.To analyze a practical case, foams ...
D.Wu, E. Van den Bulck
Katholieke Universiteit Leuven, Department of Mechanical Engineering, KU Leuven, Belgium
Introduction Self-heating behaviour of dust accumulations is a multiphysics field coupled heat and mass transfer in the porous media. A typical experimental apparatus with a hot storage oven and mesh wire baskets has been taken as the study object. The influence of gas flow velocity, oxygen concentration and ambient temperature on the self-heating behaviour of the dry coal dust sample has been ...
T. J. Kazdal , M. J. Hampe ,
 Technische Universität Darmstadt, Darmstadt, Germany
A micro steam methane reformer is a complex product consisting of multiple units. For the virtual functional product development it is necessary to validate these sub models separately. Therefore a reactor was designed to analyse kinetics of chemical reactions. The reactor design is based on a simulation geometry and the boundary conditions of the simulation were recreated in the experimental ...
M. Jain, A. Rao, K. Nandakumar
Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA, USA
The performance of a homogeneous T-mixer can be enhanced significantly by the stimulation of secondary/ transverse flows in the microchannel. Various mixing mechanisms are reported for enhancing micromixing performance such as grooves at the channel bottom, heterogeneous charge patterns etc. Most of these micromixers are studied with respect to planar geometric parameters such as groove width, ...
Using Computational Fluid-Dynamics (CFD) for the Evaluation of Tomato Puree Pasteurization: Effect of Orientation of Bottle - new
A. R. Lespinard[1, 2], R. H. Mascheroni[1, 2]
Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), La Plata, Buenos Aires, Argentina
Universidad Nacional de La Plata (UNLP), La Plata, Buenos Aires, Argentina
Determination of the temperature in liquid foods may be derived by measurements or by modeling. However, the placement of thermocouple probes to record temperature in the container disturbs the flow patterns. For this purpose, Computational fluid-dynamics (CFD) offers a powerful tool for predictions of the transient temperature and velocity profiles during natural convection heating of liquid ...
A. A. Forbis-Stokes , M. A. Deshusses ,
 Duke University, Durham, NC, USA
The purpose of this study was to investigate the impact on number of baffles placed in horizontal- or vertical-alignment of an anaerobic baffled reactor (HABR and ABR, respectively). Computational fluid dynamics was used to evaluate hydraulic performance of each and determine what number of compartments should be used to optimize reactor volume while adding minimal complexity. The findings ...
Research & Technology
Rick has a BS in Physics, a ScM in Geological Sciences, and a PhD in Physics. He worked at Air Force Geophysics Laboratory, Conoco Petroleum Exploration Research, and, since 1989, has been at the DuPont Experimental Station. In this industrial setting, Rick has had opportunity to work on a great diversity of problems ranging from traditional engineering studies, using commercial finite-element ...
T. Gulati, A. Datta
Cornell University, Ithaca, NY, USA
When rice is subjected to intense heating, it results in rapid evaporation of liquid water to vapor. As a consequence, large pressures are generated within the kernel in a span of 15s resulting in large volume changes causing the kernel to puff rapidly. Under suitable conditions, the ratio of initial volume to volume after puffing could be as high as 10. Rice puffing process is a complex ...