See How Multiphysics Simulation Is Used in Research and Development

Aqui você encontrará apresentações realizadas nas Conferências de Usuários COMSOL de todo o mundo. As apresentações englobam pesquisas e produtos inovadores feitas por engenheiros e cientistas usando o COMSOL Multiphysics. Os tópicos abrangem uma grande gama de indústrias e aplicações, como elétrica, mecânica, escoamento e química. Use a função de busca "Quick Search" para encontrar apresentações na sua área de interesse.
View the COMSOL Conference 2018 Collection

CFD Investigation of a Photocatalytic Multi-Tube Reactor for Indoor Air Purification

J. van Walsem [1], J. Roegiers [1], S. Lenaerts [1], S. Denys [1],
[1] Department of Bioscience Engineering, University of Antwerp, Antwerp, Belgium

In industrial countries, people spend most of their time indoors. Stringent heat-insulation measures in combination with deficient ventilation have a negative impact on indoor air quality [1]. Integration or retrofitting of a photocatalytic oxidation or PCO reactor into continuous flow ... Saiba Mais

Near-Field of Resonating Piezoelectric Membrane Used as Ultrasound Transducer

V. Tzanov [1], J. Munoz [1], F. Torres [1], N. Barniol [1],
[1] Universitat Autonoma de Barcelona, Bellaterra, Spain

Micro-machined ultrasound transducers have a wide range of applications. As a sensor or actuator they can be used for measuring fluid speed and direction, to mix and excite particles (sonication), for taking images (ultrasonography), for non-destructive testing and many other purposes in ... Saiba Mais

Mapping the Limitations of Breakthrough Analysis in Fixed-Bed Adsorption

J. Knox [1],
[1] NASA Marshall Space Flight Center, Huntsville, AL, USA

In a recent publication (Limitations of Breakthrough Curve Analysis in Fixed-Bed Adsorption, Ind. Eng. Chem. Res. 2016, 55, 4734-4748) the authors discussed the a priori prediction of the axial dispersion coefficient from available correlations versus obtaining it and also mass transfer ... Saiba Mais

Towards a Quantitative Prediction of Ice Forming at the Surface of Airport Runways

J. D. Wheeler [1], P. Namy [1], M. Rosa [1], L. Capobianco [1],
[1] SIMTEC, Grenoble, France

Anticipation of meteorological events such as ice forming is a key challenge to optimise the use of antifreeze on airport runways. To obtain a predictive numerical tool of ice forming on the runways, Groupe ADP and SIMTEC developed a COMSOL Multiphysics® model, in which several physical ... Saiba Mais

Radiofrequency Ablation and Its Effect on Heat Generation on Ground Pads

J. J. Barrett [1], M. Brown [1,][2],
[1] Halyard Health, Alpharetta, GA, USA
[2] Georgia Institute of Technology, Atlanta, GA, USA

Radiofrequency ablation (RFA) is a minimally invasive procedure that can be used to treat chronic pain. Radiofrequency (RF) energy is emitted through a probe that is placed near a sensory nerve in the region of pain. The RF energy excites the nearby ions in the tissue causing them to ... Saiba Mais

3D Modeling of Transformation Optics based Flattened Luneburg Lens Using the COMSOL Multiphysics® Software

S. Biswas [1], M. S. Mirotznik [1],
[1] University of Delaware, Newark, DE, USA

Three-dimensionally varying flattened Luneburg Lens structure whose axisymmetric invariance of material parameters is calculated by conformal mapping, presents a numerical challenge for three dimensional modelling. To address this problem, conventionally a two dimensional quasi-conformal ... Saiba Mais

Virtual Thermal Ablation in the Head and Neck using COMSOL Multiphysics

U. Topaloglu[1], Y. Yan[2], P. Novak[2], P. Spring[3], J. Suen[3], and G. Shafirstein[3]
[1] Department of Information Technology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
[2]Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
[3]Department of Otolaryngology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA

Thermal ablation in the head and neck requires accurate thermal dose delivery to target tissue while protecting the structure and function of nearby tissue and organs. In this study, we present a method that allows importing Computed Tomography (CT) scans to COMSOL, in order to model ... Saiba Mais

3D Dynamic Simulation of a Metal Hydride-Based Hydrogen  Storage Tank

A. Freni, and F. Cipiti
CNR- Institute for Advanced Energy Technologies “Nicola Giordano”, Messina, Italy

In this paper, a 3D dynamic simulation for a portion of a metal hydride-based (LaNi5) hydrogen storage tank is presented. The model is based on heat and mass balances and considers coupled heat and mass transfer resistance through a non-uniform pressure and temperature sorbent bed. The ... Saiba Mais

Finite-Element Evaluation of Thermal Response Tests Performed on U-Tube Borehole Heat Exchangers

E. Zanchini, and T. Terlizzese
[1]Dipartimento di Ingegneria Energetica, Nucleare e del Controllo Ambientale, Università di Bologna, Bologna, Italy

The results of two thermal response tests recently performed on two vertical borehole heat exchangers (BHEs) are presented. The BHEs have the same cross section and a depth of 100 m and 120 m respectively. The evaluation of the thermal properties of the ground and grout are ... Saiba Mais

Modeling a 3D Eddy Current Problem Using the Weak Formulation of the Convective A-phi Steady State Method

J. Bird[1]

[1]University of North Carolina, Charlotte, North Carolina, USA

A 3D model of a magnetic rotor both rotating and translationally moving at high-speed over a conductive guideway is modeled in steady-state using the convective A*-Φ formulation. The presence of the magnetic rotor (source field) is incorporated into the formulation via the boundary ... Saiba Mais