H. Zhu, T. Gulati, K. Huang, A.K. Datta
Sichuan University, Chengdu, Sichuan, China
Cornell University, Ithaca, NY, USA
Mathematical description of microwave drying requires the solution of two different physics: electromagnetics in the microwave oven cavity and food material and, transport process (mass, momentum and heat transport) in the food material. Maxwell’s equations for electromagnetics were solved using the RF Module using the GMRES iterative solver with the GeometricMultigrid preconditioner. Mass, ...
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 ...
M. Witczak ,
 Wroclaw University of Technology, Wroclaw, Poland
Constantly growing industry necessitates the development of more effective methods to protect the environment against waste in the form of metal ions. Among many methods used to purify the environment from damaging substances a very attractive and efficient method is adsorption. In this work the adsorption properties of porous glass were investigated. In order to determine the time of saturation ...
利用 COMSOL Multiphysics® 软件中流体传热接口、层流接口、化学反应接口对 HVPE 法单晶生长过程进行模拟。建立了基于 HVPE 生长室内部结构的简单二维模型，并进行了标准的网格剖分，通过物理场耦合，并添加了生长过程中所需的生长气氛，研究了 HVPE 法进行 GaN 单晶生长过程中衬底表面厚度分布的变化规律。通过模拟结果发现，衬底表面存在显著的边缘效应，边缘处厚度显著高于衬底表面其它区域。
S. K. Nayaka,, S. Roya ,, K. Ghosha ,, S. Aroshb ,, S. Prakashb,, S. P. Duttaguptaa 
 Center for Research in Nanotechnology and Science, IIT Bombay, Mumbai, Maharashtra, India.
 Dept. of Electrical Engineering, IIT Bombay, Mumbai, Maharashtra, India.
Methane detection and quantification is of great importance due to its natural abundance, potential to cause explosions and known greenhouse effect. Leak detection and concentration monitoring at source is highly challenging as CH4 is odorless and colorless. This can be performed mounting sensor network over a potential diffusion area. It requires optimal positioning of those sensor nodes to ...
Coupled Palaehydrogeological Microbial and Geochemical Reactive Transport Model of the Olkiluoto Site (Finland)
P. Trinchero, M. Luna, J. Molinero, G. Román-Ross, F. Maia, A. Nardi, J. Löfman, P. Pitkänen, L. Koskinen
Amphos 21 Consulting, Barcelona, Spain
VTT Energy, Finland
Posiva Oy, Olkiluoto, Finland
Olkiluoto at Eurajoki has been selected as the final repository site for spent nuclear waste in Finland. This area has been affected, at regional scale, by land-uplift processes related to the ice withdrawal. These events have resulted in a complex and stratified heterogeneous hydrochemical system. The objective of this work was to develop a robust paleohydrogeological reactive transport (PRT) ...
R. Kreczkiuski, I. Neitzel
Faculdade de Telêmaco Borba - FATEB, Telêmaco Borba, Paraná, Brasil
No processo Kraft a madeira é reduzida a uma massa fibrosa. Neste processo são rompidas as ligações entre as estruturas da madeira separando as fibras. Esta operação, denominada de polpação, é realizada em um equipamento denominado de digestor. Este trabalho analisa o comportamento fluidodinâmico interno a um digestor contínuo do tipo Kamyr.
朱铧丞 , 张春 , 叶菁华 ,
微波作为信息和能量的载体具有同等重要的应用价值，利用微波对物质产生的物理化学效应进行能量传递及转换已经在化学领域有了积极的应用。从 1986 年 R.N. Gedye 等人首次使用微波促进化学反应使其反应速率提高 1240 倍以来，有越来越多的微波和化学领域的科学家对相关问题进行了研究，并出现了一门新兴学科“微波化学”。微波化学作为研究微波能的一个方面是研究微波与化学反应体系相互作用的一个新兴学科。由于当前人们对微波加快化学反应的研究还非常肤浅，微波在大规模应用中并未发挥出其应有的巨大优势，微波化学进一步发展面临着巨大的挑战和机遇。目前微波化学的研究可以分为宏观和微观两个层面：（1）在宏观层面人们并不关心微波对分子之间行为的影响，其研究要用多物理场数值计算方法获得反应体系中电磁场、温度等物理量的分布和变化；（2）微观层面的研究，重点关注微波对反应分子之间相互作用的影响 ...
R&D Process Design Principal Engineer, Procter & Gamble, Italy
Outline of presentation: Comsol is a very flexible platform, ideal to model rheology modification under flow Analogy with reactive flows allows modeling of both thixotropy and gelation with decent level of accuracy and predictability It is possible, to a certain extent, to use 1D rheology to extrapolate 3D behavior ---------------------------------- Keynote speaker's biography:Vincenzo ...
J. Podichetty Thribhuvan, S.V. Madihally
Oklahoma State University, Stillwater, OK, USA
Utilization of bioreactors to regenerate tissues outside the body has been intensely investigated in functional tissue engineering. Various studies have been performed using computational fluid dynamics (CFD) to understand fluid flow within bioreactors while assuming porous scaffold as a rigid structure. However, the physical and mechanical properties of most tissue engineering scaffolds suggest ...