J. Bouhattate, E. Legrand, A. Oudriss, S. Frappart, J. Creus, and X. Feaugas
Laboratoire d’Etude des Matériaux en Milieu Agressif, LEMMA, Bat. Marie Curie, La Rochelle, France
To understand a metal susceptibility to Hydrogen Embrittlement (HE), it is important to quantify the diffusion of hydrogen through a metallic membrane. Electrochemical permeation tests are the most common methods for experimentally determining the diffusion coefficient of a metal. However the parameters directly accessible from experiments are the time required for a stream to be observed and the ...
A. Georgescu, and A. Damian
Technical University of Civil Engineering Bucharest, Bucharest, Romania
The objective of the paper is the assessment of the wind load applied to a real photovoltaic (PV) platform installed on a site situated in Brasov, which belongs to the Transilvania University. The platform has a double-tracking axis mechanism which allows the rotation of the platform disk depending on the sun position, in order to gather the maximum solar yield to produce electricity. The study ...
L. Martinelli, A. Spiandorello, P. Ruol, and A. Lamberti
DICAM, Università di Bologna, Italy
Civil Engineer, Italy
IMAGE, Università di Padova, Italy
This paper will present a numerical model based on COMSOL Multiphysics suited to simulate the dynamic response of a catenary mooring (or a submarine cable). In general, mooring lines are subject to a direct wave load (e.g. drag, inertia) in addition to the movement of the vessel to which they are linked. Tests were carried out at the wave flume of the Maritime Laboratory of IMAGE Department, ...
M. Richter, S. Moenickes, O. Richter, T. Schröder
BASF SE, Agricultural Center, Limburgerhof, Germany
Institute of Geoecology, TU Braunschweig, Braunschweig, Germany
In a soil pore, water flows through the biofilm, where the density of the latter was assumed to represent a flow resistance. This mechanism was implemented as a local change of fluid viscosity proportional to local biofilm density. It was assumed that diffusive substrate transport is possible through the biofilm region such that the biofilm was able to degrade the substance. Maximum flow ...
A. Talic, S. Cerimovic, M. Mutapcic, R. Beigelbeck, and F. Keplinger
Institute for Integrated Sensor Systems, Austrian Academy of Sciences, Wiener Neustadt, Austria
Institute of Sensor and Actuator Systems, Vienna University of Technology, Vienna, Austria
We present COMSOL-based analyses and design optimizations of a micromachined wind sensor. The sensor relies on eight germanium thermistors embedded in a thin silicon nitride membrane, where two orthogonally arranged ensembles, each consisting of four thermistors, are connected to form a double Wheatstone-bridge. In operation, each bridge is supplied by a constant current and the self-heating of ...
ABB Corporate Research, Power Technologies, Electrical Apparatus and Diagnostics group, Västerås, Sweden
Glow corona discharges are generated from tall objects during thunderstorms previous to a lightning strike. These discharges generate space charge which can hinder the development of subsequent discharges. In order to quantify the shielding effect of positive glow corona, a transient, two dimensional model of the drift of the space charge generated on the tip of tall objects under the ...
J. van Schijndel, S. Uittenbosch, and T. Thomassen
Eindhoven University of Technology
The paper presents the development of a method that determines building material and surface properties using relative simple and low-budget experiments, The method comprehends an optimal design of an experimental set up for smart determination of heat and moisture properties using both normal and inverse modeling techniques. It is concluded that the suggested methodology of the inverse ...
L. Teresi, and A. DeSimone
LaMS - Modeling & Simulation Lab, University Roma Tre, Roma, Italy
SISSA - International School for Advanced Studies, Trieste, Italy
We deal with Liquid Crystal Elastomers (LCEs) having hybrid alignment (HNEs), that is, fabricated with a given non-homogeneous nematic orientation. For such a materials, permanent distortions induced by deswelling can be compensated by those resulting from cooling below the transition temperature, thus yielding the possibility of producing temperature-driven actuators. Here, we simulate the ...
J. Ma and X. Wei
Southeastern Louisiana University
Using COMSOL® 3.5a, models were created to simulate the heat transfer between the working fluid and the selective coating as well as the natural convection of the working fluid itself. In these models, a constant heat input on half of the selective coating facing the sun was considered as energy input from the sun, and the open end of the tube, where the working fluid can flow in and out of the ...
S. Musa, M. Sadiku, and A. Emam
Roy G. Perry College of Engineering, Prairie View A&M University, Prairie View, TX
Information Systems Department, King Saud University, Riyadh, Saudi Arabia
The silicon substrate has a significant effect on the inductance parameter of a lossy interconnect line on an integrated circuit. It is essential to take this into account in determining the transmission line electrical parameters. In this paper, a new quasi-TEM capacitance and inductance analysis of multiconductor multilayer interconnects is successfully demonstrated using the finite element ...