M. Dickinson, N. Renevier, W. Ahmed
Racing to Research team, School of Computing, Engineering and Physical Sciences, University of Central Lancashire, Preston, United Kingdom
The Jost Institute, School of Computing, Engineering and Physical Sciences, University of Central Lancashire, Preston, United Kingdom
Institute of Nanotechnology and Bioengineering, School of Computing, Engineering and Physical Sciences, University of Central Lancashire, Preston, United Kingdom
Use of COMSOL Multiphysics: In operation, the piston ring is surrounded by gas acting on it, using effect of chamfer design has been considered using Love’s equation in conjunction with Stone’s equation for force ad Miler’s equation for gas pressure modelling. The chamfer geometry was controlled through variable inputs such as coating thickness, ring thickness, distance from the ring angle ring ...
A. Giusti, A. Andreini, B. Facchini, F. Turrini, Ignazio Vitale
Department of Energy Engineering, University of Florence, Florence, Italy
Avio, Turin, Italy
In this work a thermoacoustic analysis of a tubular combustor with an advanced lean injection system is presented. The performed analysis is based on the resolution of the eigenvalue problem related to an inhomogeneous wave equation which includes a source term representing heat release fluctuations (the so called Flame-Transfer-Function, FTF) in the flame region. The effect of the mean flow is ...
University of Applied Sciences, Sankt Augustin, Germany
Multigrid methods (MG) belong to the fastest solvers for partial differential equations. The key for this is an appropriate composition of the algorithmic components [1,2,4]. The multigrid solver implemented in COMSOL Multiphysics® is analyzed with respect to components and with respect to its numerical properties. Of special interest is the question whether solving selected model problems shows ...
Simulation of a New PZT Energy Harvester with a Lower Resonance Frequency Using COMSOL Multiphysics® - new
H. Elbahr, T. Ali[1,2], A. Badawi, S. Sedky
Zewail City of Science and Technology - Cairo, Cairo, Egypt
Cairo University, Cairo, Egypt
Energy harvesting from environmental vibration nowadays is feasible because of natural oscillations like that caused by air or liquid flow and by exhalation or the heartbeat of a human body. This vibration frequency is typically low (in order of less than 1 kHz). Accordingly, low-frequency vibration based energy harvesting systems are an important research topic; these systems can be used for ...
Geometric Modeling and Numerical Simulation of Airfoil Shapes Using Integrated MATLAB® and COMSOL Multiphysics
A. Safari, H. Lemu G., H. Severson
University of Stavanger, Stavanger, Norway
This paper proposes a framework for an efficient integration between geometric modeling program and analysis tool for a coming automated aerodynamic design optimization mission. This demand can be addressed by using both in-house codes and commercial software which have the good ability of live-link and efficient integration. In this study, the mathematical modeling of a turbomachinery airfoil ...
D. Iber, D. Menshykau, P. Germann, L. Lermuzeaux[2,3]
D-BSSE, ETH Zurich, Switzerland, SIB, Basel, Switzerland
D-BSSE, ETH Zurich, Basel, Switzerland
Department of Bioengineering, University of Nice-Sophia Antipolis, Nice, France
Morphogenesis is a tightly regulated process that has been studied for decades. Previously we developed data-based mechanistic models for a range of developmental processes with a view to integrate the available knowledge and to better understand the underlying regulatory logic. In our previous papers on simulating organogenesis in COMSOL Multiphysics® we discussed methods to efficiently solve ...
M. Gobbert , K. M. Kalayeh , J. S. Graf ,
 Department of Mathematics and Statistics, University of Maryland - Baltimore County, Baltimore, MD, USA
 Department of Mechanical Engineering, University of Maryland - Baltimore County, Baltimore, MD, USA
Numerical theory provides the basis for quantification of the accuracy and reliability of a FEM solution by error estimates on the FEM error vs. the mesh spacing of the FEM mesh. This paper presents techniques needed in COMSOL Multiphysics® software to perform computational studies for elliptic test problems in two and three space dimensions that demonstrate this theory by computing the ...
Y. Lu, E. Garboczi, D. Bentz
National Institute of Standards and Technology, Gaithersburg, MD, USA
The prediction of concrete materials service life is not easy, because the complex heterogeneous microstructure and the random nature of concrete materials. Study the presence of cracks in concrete and their effect on coupled reaction and transport are of great interest in civil engineering. Cracks with different widths and depths will reduce the cover thickness and accelerate the migration of ...
S. Sandoval Torres
Instituto Politécnico Nacional, CIIDIR, Oaxaca, Mexico
Drying of porous materials is characterized by the invasion of a gaseous phase replacing the evaporating liquid phase. Vacuum drying is an advanced method applied to oakwood to diminish discoloration, so understand its physics is a very important task. In this work, a two-scale model is solved to simulate vacuum drying of oakwood. A two scale model describes the physics of wood-water relations ...
U. Vogel , M. Spindler , S. Wege , T. Gemming 
 Leibniz Institute for Solid State and Materials, Dresden, Germany
In this work, we seek to simulate SAWs for a better understanding and to benchmark the currently available cloud computing possibilities of COMSOL Multiphysics® software. By using the MEMS module we demonstrate 3D models with reduced geometry to achieve principle information about the wavefield. For a benchmark, a high-speed workstation with limited memory (RAM) is compared to the most potent ...