Haschke, T.1, Lautenschlager, D.1, Wiechert, W.1, Bonaccurso, E.2, Butt, H.J.2
1 University of Siegen, Faculty 11, Department of Simulation, Siegen, Germany
2 Max-Planck-Institute for Polymer Research, Polymer Physics Group, Mainz, Germany
The design of micro and nanoscale systems is a great challenge for modelling and simulation. In particular Lab-on-a-Chip-technology offers a wide spectrum of possible applications. Recently Bonaccurso and Butt (Bonaccurso & Butt 2005) presented a new approach to investigate droplet evaporation: They placed water droplets on rectangular, silicon atomic force microscope (AFM) cantilevers so that ...
Hoang, V.N., Kaigala, G.V., Backhouse, C.J.
ECERF, University of Alberta, Edmonton, Alberta, Canada
Localized heating is poised to become an integral part of microfluidic devices in various life-science applications. This is catalyzed by the scale of economics, the advantageous fluidic behavior at small volumes, and the ever increasing need for rapid and high throughput assays for pharmaceutical industry and other combinatorialbased studies. For precision confined heating, thin film resistive ...
Gamborg Andersen, G., Petrunin, V.V., Baurichter, A.
University of Southern Denmark, Physics Department, Odense, Denmark
We used FEMLAB (Finite Element Modelling LABoratory) for modelling heat propagation in 4 dimensions (time and the 3 spatial dimensions) after pulsed laser heating of non-isotropic materials during surface science experiments. As an example, the spatial and temporal evolution of a laser induced temperature jump in highly oriented pyrolytically grown graphite (HOPG) was calculated on a ns time ...
Schonfeld, F.1, Hardt, S.2
1 Institut für Mikrotechnik Mainz GmbH
2 Darmstadt University of Technology
The fluidic motion driven by Coulomb forces on charge clouds in the vicinity of charged walls immersed into an electrolyte is termed electroosmotic flow (EOF). Since the generated EOF pressure increases with decreasing hydrodynamic diameter, such actuation mechanisms are ideally suited for microfluidic applications and are widely discussed in the literature (see e.g. Li 2004). In addition to ...
Carin, M.1, Favre, E.2
1 Laboratoire d’Etudes Thermiques Energétique et Environnement, Université de Bretagne Sud, Lorient, France
2 Comsol France, Grenoble, France
A 2D axisymmetric model of a melt pool created by an arc type heat source has been developed using FEMLAB. The model solves the coupled equations of laminar fluid flow and heat transfer to demonstrate the flow behaviour in the pool. The coupled effects of buoyancy and capillary forces are taken into account. The presence of the liquid – solid interface is modelled by two different ways: a ...
Nearwell Bore Pressure Transient Simulation with Geomechanical Deformation for Formation Evaluation in Weak Reservoirs
Lee, H.J., Torres-Verdín, C., Sepehrnoori, K.
The University of Texas at Austin
Geomechanics is valuable to account the rock deformations due to pore pressure and temperature changes resulting from production and fluid injection. We have used the FEMLAB 3.1 earth science module’s coupled geomechanical-fluid flow model to test its application to near wellbore pressure transient analysis. The new feature in FEMLAB 3.1 enables to couple geomechanical and fluid flow models ...
Bentz, D.N., Zhang, J., Bloomfield, M., Lu, J-Q., Gutmann, R.J., Cale, T.S.
Rensselaer Polytechnic Institute
One of the key issues in developing higher density microelectronics devices is the impact of the stresses induced by thermal expansion mismatches of the materials used. We have examined, using FEMLAB, the stresses due to interwafer copper interconnects embedded in multilayer structures created by bonding two wafers using an organic low-k dielectric glue, benzocylcobutene (BCB). This work ...
Nool, M., Lahaye, D.
Centrum voor Wiskunde en Informatica (CWI), Amsterdam, The Netherlands
The eggshell method was introduced by F. Henrotte as a novel magnetic force computation method. It allows computation of the force by integrating the magnetic stress tensor over a shell surrounding the body of interest. We investigate the numerical properties of this method for current carrying wires, and permanent magnets immersed in two-dimensional stationary magnetic fields, discretized by ...
Confinement Loss Computations in Photonic Crystal Fibres using a Novel Perfectly Matched Layer Design
Viale, P., Février, S., Gérôme, F., Vilard, H.
IRCOM, CNRS UMR 6615, Limoges, France
To modelize infinite photonic crystal fibre (PCF) with 2D-finite-geometry mode solver, it is necessary to use a perfectly matched layer (PML). We have performed a new type of PML design to simulate propagation in PCFs. The results obtained with index-guiding PCFs are in very good agreement with previous theoretical published results. Our PML is quickly optimized. The link between MATLAB and ...
Bernard, T., Herrero Blanco, I., Peters, M.
Fraunhofer Institute for Information and Data Processing IITB, Business Unit Systems for Measurement, Control, and Diagnosis (MRD), Karlsruhe
Rheological forming processes of glass and plastics, where heat conduction, radiation and fluid dynamics are the main physical effects, are strongly nonlinear. The aim of this paper is to investigate a control design with the use of the spatially distributed model. As control methodology we investigate linear and nonlinear model predictive control (MPC, NMPC) schemes. These approaches are ...