Hydro-Mechanical Coupling in Saturated and Unsaturated Soils and its Consequences on the Electrical Behaviour
G. Della Vecchia, R. Cosentini, S. Foti, and G. Musso
DISTR, Politecnico di Torino, Torino, Italy
The consequences of hydromechanical coupling on the electrical conductivity of saturated and unsaturated soils are investigated experimentally and numerically. Simulations of the consolidation problem under vertical load for an elastic medium and of the coupled flow of two immiscible fluids have been performed in order to check the capability of electrical resistivity tomography to reconstruct ...
D. Baldissin and D. Lombardo
Compumat S.r.l., Torino, Italy
A two-dimensional mathematical model for the absorption and desorption of H2 in LaNi4.8Al0.2 was developed and experimentally validated. The model is composed of an energy balance, a mass balance and a momentum balance. These differential equations are numerically solved by means of the finite element method using the software COMSOL Multiphysics®. From a comparison between theoretical ...
S. Lazzari, A. Priarone, and E. Zanchini
DIENCA, University of Bologna, Bologna, Italy
A numerical investigation of the long-term performance of double U-tube borehole heat exchanger (BHE) fields, in the case of non-negligible effects of groundwater movement, is performed by means of COMSOL Multiphysics. Two time periodic heat loads, with a period of one year, are studied: Q1, with a partial compensation between winter heating (principal load) and summer cooling; Q2, with no ...
A. Bradji, E. Holzbecher, and M.S. Litz
Department of Mathematics, University of Annaba, Algeria
Georg-August Universität Göttingen, Germany
It is well known that the convergence rate of a numerical model is significantly reduced, when the genuine character of the setting with differential equation and boundary condition is not given anymore. Here we examine the decrease of convergence order for models using COMSOL in which the problem set-up includes a coupling between a 1D and a 2D subdomain. In terms of physics we are dealing with ...
J. Ma, A. Parker, and K. Kuan
Southeastern Louisiana University, Hammond, LA, USA
Torrey Hill Technology LLC, SanDiego, CA, USA
This study focuses on a low-cost composite material based on CuW with Cu via, which functions as a more efficient thermal path for heat conduction. A 50mm X 50mm X 1mm CuW(15/85) speciman consists an array of 30X30 uniformly distributed cylindrical Cu via attaching to a microprocessor generating 100 watts power was studied. By calculating the heat flux coming out of the top and the ...
G. Selembo, P. Selembo, J. Stanton, and G. Paulsen
University of North Carolina
Surface aeration systems are used in the wastewater treatment industry for the transfer of oxygen in the activated sludge process. These systems are capital intensive and also require a significant amount of energy to operate. Scale-up and design of these systems is largely empirical, and due to the size of these systems, modifications for experimental testing can be economically prohibitive. ...
F. Loos, and H.-D. Ließ
Universität der Bundeswehr München
The purpose of this work is to investigate the triggering behaviour of safety fuses for mobile on board supply systems. The influence of different materials and shapes of the fuses on the triggering behaviour are analyzed. Furthermore, the simulation results obtained by the use of COMSOL Multiphysics® are compared to experimentally achieved data. For the transient simulation of the heat ...
Multiphysics Modeling of Implantable Micro-Electrode for Diagnostic and Therapeutic Applications in Neural Disorders
H. W. Ferose, R. G. Prasath, M. Alagappan, and G. Anju .
PSG College of Technology
Tamil Nadu, India
Neural disorders like epilepsy, Parkinson’s disease and Alzheimer’s disease have become a major area of concern because of their complexity and the huge number of occurrences. At present, most of the treatments are based on drugs and external nerve stimulation demanding critical care. This study aims at the design and simulation of an implantable micro-electrode which can lead to better ...
R. C. Thiagarajan, and K. V. Chiranjeevi
ATOA Scientific Technologies Private Limited
The predictive engineering of materials is matured from predicting properties from known morphology or constituents to engineering novel morphology for superior properties. The focus of this paper is about implementation of computational material mechanics modeling method in COMSOL Multiphysics software for engineering the constituents for superior properties. A brief review of property ...
Material Selection and Computational Analysis on DOHC V16 Engine’s Mounting Bracket Using COMSOL Multiphysics
M. V. A. Nag
G.R.I.E.T., Hyderabad, AP, India
Reduction of the engine vibration and the dynamic forces transmitting from engine to the automotive body structure has always been an important part of automotive research. Automobile engineers face the task of creating a mechanism to absorb these vibrations and provide a smooth ride. The usage of Motor Mounts is the best solution for dampening the effects of vibrations and oscillations. This ...