Department of Chemical Engineering, Cairo University, Giza, Egypt
Mixing is a typical unit operation that occurs almost in all chemical industries. Static – alternatively termed motionless – mixers are being widely used due to their low power consumption, low capital investment, minimal maintenance costs and versatility. The traditional helical mixing element is mainly used for in-line blending under laminar and transitional flow conditions. The ...
Minhee Jun, and Jason V. Clark
Departments of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA
Large deflection actuators are becoming increasingly important for microsystems. Since actuation forces are usually small, large deflection actuators usually require flexures with low stiffness. Rectangular serpentine flexures are often used for such actuators due to their low stiffness and large linear deflection range. In this paper we investigate the performance of curved serpentine flexures ...
G. Megali, D. Pellicanò, M. Cacciola, F. Calarco, D. De Carlo, F. Laganà, and F.C. Morabito
DIMET Department, Faculty of Engineering, University “Mediterranea” of Reggio Calabria, Reggio Calabria, Italy
Constitutive properties of living cells are able to withstand physiological environment as well as mechanical stimuli occurring within and outside the body. We examined fluid flow and Neo-Hookean deformation related to the rolling effect. A mechanical model to describe the cellular adhesion with detachment is here proposed. We developed a finite element analysis, simulating blood cells attached ...
R. Cagliero and G. Maizza
Dipartimento di Scienza dei Materiali ed Ingegneria Chimica, Politecnico di Torino, Torino, Italy
The increasing demand for improved metallurgical products strongly motivates the optimization of manufacturing processes and design of γ-TiAl products. Among the large variety of available forming processes, cold closed-die forging is particularly suitable for producing net shape bulk products having good surface finish with better mechanical properties. Pressing punches of suitable ...
B. Balannec[1,2], T. Renouard[1,2], and F.Cortès-Juan
Université de Rennes 1-ENSCR-CNRS, France
Université européenne de Bretagne, France
Universidad Politécnica de Valencia, Spain
Feasibility studies in the field of membrane processes are generally first carried out with bench-scale membrane filtration cells. These small laboratory cells also allow evaluating the influence of operational parameters and the membrane performances. Smart design of the cell geometry may improve the flow distribution and consequently the membrane filtration performances by increasing shear ...
R. Firoozabadi, and E.L. Miller
Airvana Inc., Chelmsford, MA, USA
Tufts University, Medford, MA, USA
In this paper, COMSOL Multiphysics software is utilized as a finite element forward solver to obtain the electromagnetic fields at the receiving antennas while the breast is illuminated by one antenna in the array. Geometry consists of coronal slices of the 3-D breast. Simulations are done by a MATLAB code which runs COMSOL finite element solver and collects the data at the receiving antennas at ...
E. Bianchi, F. Boschetti, G. Dubini, and C. Guiducci
Politecnico di Milano, LABS, Laboratory of Biological Structure Mechanics, Structural Engineering Department, MI, Italy
CLSE - Swiss Up Chair -Laboratory of Life Science Electronics, EPFL, Losanna, Swissland
Microfabricated planar interdigitated electrodes can detect and analyze cells or particles giving an impedance-based characterization. This method presents several advantages: real-time detection, label-free analysis, non-invasive sensing, easiness of integration and high-throughput screening. A numerical model of an interdigitated planar micro sensor was realized in order to optimize and pre ...
C. Romao, and M. White
Dept. of Chemistry and Institute for Research in Materials
A series of 2-D finite element models of a ZrO2-ZrW2O8 composite system were created in COMSOL Multiphysics to study the effect of pores between the matrix (ZrO2) and filler (ZrW2O8) materials. Pores were modeled as ellipses concentric with the filler particles. Seventeen model geometries of varying microstructure were studied in order to determine correlations between microstructural ...
D. Krizaj, I. Iskra, Z. Topcagic, and M. Remskar
University of Ljubljana, Faculty of Electrical Engineering, Ljubljana, Slovenia
Institut Jozef Stefan, Ljubljana, Slovenia
We are developing nanoparticle detector for airborn particles. The detection principle is based on condensation of nanoparticles forming micron sized water droplets and detection of the droplets by a capacitive type nanodetector. We have successfully performed some experimental evaluations of the detection principle and are in the stage of optimization of several parts of the system. As ...
Numerical Analysis of the Effect of the Electrode Distance During the Determination of the Flammability Limits of Gases
F. Ferrero, M. Beckmann-Kluge, and V. Schröder
BAM Federal Institute for Materials Research and Testing
Simulations with COMSOL Multiphysics were performed, in order to analyze the gas flow patterns during the induced ignition of gases. Simplified calculations were performed. The ignition spark was assumed to have a temperature of 2000 K and a laminar flow was selected. 2D calculations were performed, as to reduce computing times. The distance between the electrodes was considered as parameter ...