T. Merder , J. Jowsa , A. M. Hutny , J. Pieprzyca , M. Warzecha ,
 Silesian University of Technology, Katowice, Poland
 Czestochowa University of Technology, Czestochowa, Poland
Studies of the liquid metal movement (hydrodynamic) in a real object (tundish) are substantially precluded due to the objective difficulties (high temperature and the size of metallurgical equipment), compared to their execution by the use of physical and numerical modeling. In presented study, two test methods for analyzing the flow and mixing of the liquid steel in the tundish were used. The ...
A.W.M. van Schijndel and H.L. Schellen
Eindhoven University of Technology, Eindhoven, The Netherlands
This paper presents the use of the multiphysics package COMSOL for teaching heat and moisture transport modeling in the research area of building physics. It includes a description on how COMSOL works and six exercises with 2D, 3D, steady state and transient models. It is concluded that COMSOL is a very useful tool for this kind of engineering education. Especially, the abstraction level of ...
A. Zugliano, R. Artoni, A. Santomaso, and A. Primavera
Danieli & C. Officine Meccaniche S.p.a., Buttrio, UD, Italy
DIPIC, Università di Padova, Padova, Italy
In previous works a dissipative hydrodynamic model was used to simulate the behavior of a dense granular solid flowing through silos with simple geometries or with internal devices, showing good agreement with experimental results. That model has been upgraded taking into account the interaction between the solid itself and a nonreactive gaseous stream flowing countercurrent through it. This ...
Marc K. Smith
Professor of Mechanical Engineering, Georgia Institute of Technology
Simple, accurate CFD simulations using COMSOL Multiphysics are used in a senior-level undergraduate course as a means to explore a number of fluid flows with the intent of developing a deep understanding of the underlying fluid mechanical mechanisms involved in the flows. Students also learn about the finite element method, how to properly pose the underlying mathematical model for the fluid ...
S. Singer, W. H. Green
Massachusetts Institute of Technology, Cambridge, MA, USA
Transient, two-dimensional (axisymmetric) simulations of a cigarette subject to realistic static and forward smoldering cycles were performed. The computational domain consists of a porous packed bed of tobacco and a filter surrounded by a thin, porous paper and a region of surrounding air. The governing equations include overall mass conservation, momentum conservation, conservation equations ...
S. Mohammadighavam, B. Kløve
University of Oulu, Department of Process and Environmental Engineering ,Oulu, Finland
After rapid mixing of waste water and coagulant, an effective slow mixing during a reasonable retention time will cause to grow the size of flocs up which will settle out easily. Around-the-end hydraulic mixer with barriers is one of the efficient facilities that have been used in water treatment plants for this purpose. A uniform velocity gradient (G) is needed to achieve efficient mixing and ...
Effects of Flow and Diffusion on Blood Coagulation in Platelet Poor Plasma: a Two-way Coupling Between Hemodynamics and Biochemistry
D. Magnabosco[1,2], H. van Ooijen, B. Bakker, R. van den Ham
Politecnico di Milano, Milan, Italy
Philips Research, Eindhoven, The Netherlands
Enzyme reactions, blood flow and diffusion in human vasculature play interacting and fundamental roles in blood coagulation. In this complex mechanism, the balance between blood and clot is a delicate equilibrium, whose tight regulation is vital to avoid pathologies such as bleeding and thrombosis. The secondary hemostasis triggered by tissue factor in platelet poor plasma is studied up to ...
Investigating the Performance of Mechanically Ventilated Double-Skin Facades with Solar Control Devices in the Main Cavity - new
C. G. Galante
Newtecnic Ltd, London, England, UK
The use of ventilated facades may reduce the cooling and heating energy demands of the building. Double-skin facades (DSFs) belong to the wider group of ventilated facades and currently represent one of the most interesting and studied facade systems. The purpose of this study is to investigate the thermal behaviour and performance of a DSF being designed for a real project in the Middle East ...
M. Z. Saghir , A. Ahadi , A. A. Mohamad ,
 Department of Mechanical Engineering, Ryerson University, Toronto, ON, Canada
 Department of Mechanical Engineering, University of Calgary, Calgary, AB, Canada
Nanofluids is a new class of fluid consisting of particles in a liquid. Different base liquid has been proposed and the most common one is water. The concentration of these particles can range from 0.1% to 5% or greater. Different numerical models have been proposed to solve this interesting problem. Some scheme assumed the fluid as a single fluid and other assumed as a two phase system ...
D. Conchouso , A. Arevalo , D. Castro , Y. Ying , I. G. Foulds 
 King Abdullah University of Science and Technology, Thuwal, Makkah, Saudi Arabia
 School of Engineering, University of British Columbia - Okanagan, Vancouver, BC, Canada
To maintain same droplet size across parallel devices, new break-up strategies based on geometry are been studied. In this work, we model a geometrically-set droplet generator, in which the droplet break-up occurs by a block and break mechanism. In other words when the disperse phase blocks the path of the continuous phase, droplet formation occurs. The devices showed consistent droplet ...