Alam, P., Toivakka, M.
Laboratory of Paper Coating and Converting, Åbo Akademi University, Turku, Finland
Multiphysics phenomena that occur when metering coating colours between paper and a composite polymeric-steel blade are simulated in this paper. The paper discusses modelling requirements for coating process technologies that have been fulfilled using the FEMLAB software, as well as requirements that still need to be modelled in order to accurately simulate the complex interdependent ...
Barletta, A., Lazzari, S.
University of Bologna – D.I.E.N.C.A. – Lab. of Montecuccolino, Bologna, Italy
Free convection in a vertical square cavity filled with a fluid saturated porous medium is investigated numerically by means of the software package FEMLAB 3.1i. The cavity has isothermal walls and is heated by an internal concentric circular boundary subjected to a uniform heat flux. The porous medium satisfies the Darcy law and the validity of the Boussinesq approximation is ...
FEMLAB is used to provide a benchmark simulation for a classical problem in high-intensity discharge lighting: the pure mercury-filled quartz HID (high-intensity discharge) lamp. A steady 2-dimensional axi-symmetric formulation estimates the operating temperatures, electrical potential, and gas velocities for an HID lamp running in vertical orientation. Governing equations and their ...
P. Takhar, and S. Zhang
Texas Tech University, Lubbock, Texas, USA
Visualization Sciences Group Inc., Burlington Massachusetts, USA
This work demonstrated the importance and feasibility of experimental image to simulation workflow. The workflow is successfully applied to a food processing study, where multiphysics and multiscale modeling based on 3D experimental image reconstruction contributes to the preservation of corn, one of the major food sources for the world population.
D. Song, R. Gupta, and Chhabra
West Virginia University, Morgantown, West Virginia, USA
Indian Institute of Technology, Kanpur, India
Heat transfer from a sphere having a uniform temperature and falling axially in a cylindrical tube filled with an incompressible power-law liquid is numerically investigated. The governing equations for simultaneous flow around a confined sphere and heat transfer to power-law fluids were solved numerically using COMSOL Multiphysics. It was found that the wall effects on the mean Nusselt number ...
Humusoft was founded in 1990 and has been a representative for COMSOL since 1999, for several countries in Eastern Europe. In this presentation we begin with a short overview of the and historical milestones for Humusoft. The essence of this presentation concerns the wide ranging branches in which COMSOL Multiphysics is used from the Automotive industry to the Medical. From the corporate ...
K. Büler, and J. W. Louw
University of Applied Sciences, Offenburg, Germany
The structure of the secondary meridional separation bubble generated by two coaxially rotating spheres in viscous fluid flow and a special situation with two spheres on a vertical axis are considered. The flow pattern development around the two rotating spheres is simulated using COMSOL Multiphysics. The flow structure depends on the geometry and the Reynolds number. The influence of the finite ...
ZINK Imaging, Bedford, MA, USA
Slot coating is a widely used commercial process for applying one or more thin layers to a substrate such as paper, fabric, film or other material. In many cases, a highly uniform thickness is required, where a coating head that has been corrected for use with a Newtonian fluid may not produce a uniform coating when used with non-Newtonian fluids. With a multiphysics calculation involving the ...
J. Hrdlicka, P. Cervenka, and D. Snita
Institute of Chemical Technology Prague, Prague, Czech Republic
This contribution is devoted to the mathematical modeling of the AC electroosmotic micropumps in COMSOL Multiphysics and Matlab. The mathematical model involves the microchannel surroundings and several AC-voltage driving modes. The weak form has been used for handling singularities and other problems. The system dynamic behavior and conditions at the phase interfaces will be discussed.
Research Center for Power Engineering Problems, KSC, RAS, Russia
Non-Newtonian laminar flows in curved circular tubes with inserts are investigated by computer simulations. 0.65% solution of NaCMC is considered. Three-dimensional incompressible Navier-Stokes equations are solved using COMSOL Multiphysics. Placements of inserts inside the curved tubes and their effects on the hydrodynamics of the flow are studied. Computations are carried out with various ...