In questa sezione troverete i lavori presentati alle Conferenze mondiali COMSOL. Le presentazioni descrivono ricerche e prodotti innovativi progettati con COMSOL Multiphysics da colleghi di tutto il mondo. I temi delle ricerche presentate abbracciano un'ampia gamma di settori produttivi e aree applicative, in ambito elettrico, meccanico, fluidodinamico e chimico. Lo strumento di Ricerca Rapida vi permetterà di trovare le presentazioni che si riferiscono all'area di vostro interesse.

Modeling of Supercapacitor

G. Madabattula[1], S. K. Gupta[1]
[1]Department of Chemical Engineering, Indian Institute of Science, Bangalore, Karnataka, India

Low cost high energy density batteries that can be charged and discharged rapidly are required in a number of applications. Tapping energy from renewal resources such as solar, wind and tide requires rapidly generated energy to be first stored and then used round the clock. Storing energy of a moving vehicle as it slows down and recovering it to accelerate the vehicle later can significantly ...

Simulation of Droplet Impingement on a Solid Surface by the Level Set Method - new

J. Hu[1], R. Jia[1], K. Wan[2], X. Xiong[3]
[1]Department of Mechanical Engineering, University of Bridgeport, Bridgeport, CT, USA
[2]Mechanical and Industrial Engineering, Northeastern University, Boston, MA, USA
[3]Department of Electrical Engineering, University of Bridgeport, Bridgeport, CT, USA

The dynamic behavior of droplet impingement on a solid surface is important to many engineering applications. This paper studied the dynamic behavior of a droplet impinging onto solid dry surfaces with different surface wettability using the COMSOL Multiphysics® software. The simulation results were validated against experimental results. It was found that the Level Set method can predict the ...

Novel Approach for Teaching Microchemical Systems Analysis to Chemical Engineering Students Using Interactive Graphical User Interfaces (GUIs)

A. Nagaraj [1], P. L. Mills [1],
[1] Department of Chemical and Natural Gas Engineering, Texas A&M University - Kingsville, Kingsville, TX, USA

Chemicals are an integrated part of our daily life. While chemicals are significant contributor to a nation’s economy, sound management of chemical production is essential for environmentally friendly operation without maximizing operational costs. Next generation technologies must be developed that potentially change the chemical plants and process engineering giving rise to safe, compact, ...

Charge-Discharge Studies of Lithium Iron Phosphate Batteries

A. K. R. Paul [1], R. D. Pal [2],
[1] CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, India
[2] Academy of Scientific and Innovative Research, Chennai, Tamil Nadu, India

A lithium-ion battery comprises of two intercalating electrodes separated by a membrane, sandwiched between aluminum and copper current collecting plates. The battery performance depends upon several parameters and its operating conditions. In this work we developed a model for a lithium iron phosphate battery and validated our results with experimental charge-discharge curves. We however note ...

Hydrodynamic Modeling of a Rotating Cone Pump Using COMSOL Multiphysics® Software

P. L. Mills [1], A. Uchagawkar [1], M. Vasilev [1],
[1] Texas A&M University - Kingsville, Kingsville, TX, USA

Introduction Velocity profiles in liquid films flowing over rotating conical surfaces are of considerable interest in industry. The efficiency of important process equipment, such as spinning cone columns, fluid degassers, centrifugal disc atomizers, centrifugal film evaporators, and rotating packed bed reactors, is greatly influenced by the nature of the fluid velocity distributions. Conical ...

Simulation of Supercritical Fluid Extraction Process

P. Katiyar [1], S. Khanam [1],
[1] Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India

This paper deals with the simulation of mathematical model for supercritical extraction. Reverchon, 1996 extracted sage oil using supercritical extraction method from sage leaves at 9 MPa and 50 ᵒC. Four mean size of sage leaves ranging from 0.25 to 3.10 mm were taken for extraction with other experimental conditions and process parameters. Experimental results were fitted in the model developed ...

Simulating the Electrical Double Layer Capacitance

G. Zhang
Clemson University, Clemson, SC, USA

When a solid surface makes contact with a liquid medium, an electrical double layer (EDL) structure forms spontaneously through thermodynamic interaction between electrons and ions. In this study, we developed a computational model using commercial finite element analysis package COMSOL Multiphysics to simulate the double layer structure and quantify the EDL capacitance for the first time. In ...

Modeling of Residual Stresses in a Butt-welded Joint with Experimental Validation

V. Srivastava [1],
[1] Naval Materials Research Laboratory (NMRL), Defence Research and Development Organization (DRDO), Ambernath, Thane, Maharashtra, India

2D-modeling of arc welding in butt-joint configuration was performed in this study considering thermal-structural interactions. Thermal behavior was modeled in COMSOL Multiphysics® using the Heat Transfer Module with weld heat input as a Gaussian pulse whereas structural behavior using Structural Mechanics Module. Thermal-elastic-plastic behavior model based on Von Mises yield criteria and ...

Numerical Model for Predicting Heat and Mass Transfer Phenomena during Cake Baking

P. Le Bideau [1], R. Cutté [1], P. Glouannec [1], J. F. Le Page [2]
[1] Univ. Bretagne Sud, FRE CNRS 3744, IRDL, F-56100 Lorient, France
[2] DPP, ADRIA Développement, Quimper, France

A transient two-dimensional axisymmetric model is implemented in COMSOL Multiphysics® software to simulate temperatures, moisture contents distributions and cake swelling during the baking of cake contained in mold. The medium is assumed to be a deformable porous medium containing three phases: solid (dough), liquid (water) and gas. Gas phase includes two species, water and carbon dioxide. The ...

Two-Dimensional Simulation of All-Solid-State Lithium-ion Batteries

L. Tong [1],
[1] Keisoku Engineering System Co., Ltd., Chiyoda-ku, Tokyo, Japan

There is great interest in developing all-solid-state lithium-ion batteries. They are ideal micro-power sources for many applications in portable electronic devices, electric vehicles and biomedical engineering. It is known that all-solid-state lithium-ion batteries are often fabricated by thin film methods, with thicknesses in the range of a few micrometers. Since porous electrodes are not ...