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Multiphysik-Modellierung und -Simulation treiben Innovationen in Industrie und Wissenschaft voran – wie die zahlreichen Anwendungsbeispiele zeigen, die jedes Jahr in den Fachbeiträgen und Postern von Ingenieuren, Forschern und Wissenschaftlern auf der COMSOL Conference vorgestellt werden. Lassen Sie sich von den unten aufgeführten aktuellen Beiträgen inspirieren oder nutzen Sie die Schnellsuche, um eine bestimmte Präsentation zu finden oder nach Anwendungsbereich oder Konferenzjahr/-ort zu filtern.

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Suchbegriff:

Modeling and Simulation of Artificial Core-Shell Based Nanodielectrics for Electrostatic Capacitors Applications

D. Musuwathi Ekanath[1], N. Badi[1], and A. Bensaoula[2]
[1]Center for Advanced Materials, University of Houston, Houston, TX
[2]Dept. of Physics, University of Houston, Houston, TX

The need for high storage capacitors led to the development of polymer based capacitors. Polymers have high processability, mechanical flexibility, electrical breakdown strength and compatibility with printed circuit board (PCB) technologies; but usually have very low permittivity (K). ... Mehr lesen

Optimizing the Performance of MEMS Electrostatic Comb-Drive Actuator with different Flexure Springs

S. Gupta[1], T. Pahwa[1], R. Bansal[1], V. Bansal[1], B. Prasad[1], D. Kumar[1]
[1]Electronic Science Department Kurukshetra University, Kurukshetra, Haryana

A new design of electrostatic comb drive actuator is presented in this paper by using different spring designs and with different folded beam lengths. An increased displacement of lateral comb drive actuator will subsequently be accomplished with the same actuation voltage. Stress ... Mehr lesen

Thermal and Electrostatic Analyses of One Dimensional CFC Diagnostic Calorimeter for SPIDER Beam Characterisation

M. De Muri[1][2], M. Dalla Palma[1], P. Veltri[1], A. Rizzolo[1], N. Pomaro[1], and G. Serianni[1]
[1]Consorzio RFX, Euratom-ENEA Association, Padova, Italy
[2]Dipartimento di Ingegneria Elettrica, Padova University, Padova, Italy

The main purpose of SPIDER (Source for the Production of Ions of Deuterium Extracted from RF plasma) test facility is the investigation and optimization of a negative ion beam produced by the full size ion source for ITER NBIs (Neutral Beam Injectors). Thermal, transient, non-linear FE ... Mehr lesen

Computational Modeling of the Electrohydrodynamics Influencing Trace Mercury Adsorption within Electric Utility Electrostatic Precipitators

H. Clack[1]
[1]University of Michigan, Ann Arbor, MI, USA

Anthropogenic mercury (Hg) emissions increase the risk of neurological and neonatal health effects in humans through fish consumption. There are several technological approaches to controlling mercury emissions from coal combustion, including the injection of a powdered mercury sorbent ... Mehr lesen

Numerical Simulation of a Human Body Subjected to Electrostatic Fields for Study of the Turin Shroud Body Image

G. Fanti[1], L. Matordes[1], V. Amoruso[2], M. Bullo[1], F. Lattarulo[2], G. Pesavento[1]
[1]Dip. di Ingegneria Industriale, Università di Padova, Padova, Italy
[2]Politecnico di Bari, Bari, Italy

The TS (Turin Shroud) [1,2] is a fine linen fabric showing a not yet explainable [3] double body image of a scourged and crucified man stabbed on the side. Many hypotheses have been formulated without success [4] and perhaps the most reliable is one correlated to the Corona Discharge [5] ... Mehr lesen

MEMS Electrostatic Comb Actuator: A Comparison of Different Structure Designs and Materials using COMSOL 3.5a

S. Kapoor[1], D. Aggarwal[2], and A. Gujjar[1]
[1]University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra, Haryana, India.
[2]Electronics Science Department, University Institute of Engineering and Technology, Kurukshetra University, Haryana, India.

The micro machining technology that emerged in the late 1980’s can provide micron sized sensors and actuators. Actuators are used for the transformation of non- mechanical input energy into mechanical output energy. There are many types of micro- actuation mechanisms, most commonly used ... Mehr lesen

用于高温空气过滤的热稳定梯度结构多级纳米纤维膜

郑元生，徐渊强¹, 王凤英¹, 朱蓓婕¹, 孙早冬¹, 臧磊¹, 侯晨阳¹
¹上海工程技术大学

本研究成功开发出一种多级梯度结构的OMI纤维膜，其特点包括由外至内纤维直径逐层递减、每层具有双峰纤维直径分布、以及有机-无机复合功能化策略。这种独特结构实现了低压阻下的高效空气过滤，并确保了长期热稳定性。该OMI纤维膜对PM0.3、PM1.0和PM2.5的过滤效率分别达到99.98%、99.99%和100%，且压阻仅为65 Pa。此外，针对压力场和颗粒过滤行为的CFD模拟结果与实验趋势一致。在250 °C热处理12小时后，该OMI纤维膜仍保持94.68%的PM0.3过滤效率和62 Pa的压阻。本研究证明了OMI纳米纤维膜在250 °C下的基础热稳定性与过滤潜力 ... Mehr lesen

PIC simulation of a 2.45 GHz ECR ion source using Comsol tensorial permittivity RF capability

L. Neri¹, G. Castro¹, O. Leonardi¹, L. Celona¹, A. Miraglia¹, S. Gammino¹, G. Colonna², A. Laricchiuta², F. Grespan³, M. Comunian³, G. Russo⁴, A. Coco⁴, S. Boscarino⁴, G. Bilotta⁵
¹INFN – Laboratori Nazionali del Sud, 95123, Catania, Italy
²CNR – Istituto per la Scienza e Tecnologia dei Plasmi, Sezione di Bari, 70126, Italy
³INFN – Laboratori Nazionali di Legnaro, 35020, Padova, Italy
⁴UNICT – Dipartimento di Matematica e Informatica, Catania, 95131, Italy
⁵INGV – Osservatorio Etneo, Sezione di Catania, 95125, Italy

Particle In Cell (PIC) simulation tool for the simulation of 2.45GHz ECR ion source was developed tanks to Comsol Multiphysics RF module capability to compute electromagnetic field propagation imposing a tensorial permittivity with real and complex parts. A tensorial description is ... Mehr lesen

Ionic Neuromodulation and Neurosensing Platform for In Vitro Studies

Jacopo Nicolini¹, Federico Leva¹, Claudio Verardo², Pierpaolo Palestri³, Luca Selmi¹
¹Unimore - Università degli studi di Modena e Reggio Emilia
²Scuola Superiore Sant'Anna
³Università degli studi di Udine

Overview We successfully simulated a template iontronic system for closed-loop neuromodulation and neurosensing. The model’s goal is to support the careful design of novel platforms for in-vitro micro-electrode-array sensors coupled to conductive polymer-based (CP) ionic actuators used ... Mehr lesen

Modeling of a Hybrid-Integrated Moving Magnet Drive for a Quasi-Static 2D-MEMS Vector Scanner

Klemens Birnbaum¹, Martin Blasl², Benjamin Mustin², Thilo Sandner²
¹Institute of Automation, Faculty of Electrical and Computer Engineering, TUD Dresden University of Technology, 01062 Dresden, Germany
²Fraunhofer Institute for Photonic Microsystems, Maria-Reiche-Str. 2, 01109 Dresden, Germany

Quasi-static 2D-MEMS vector scanners are micro-opto-electro-mechanical systems (MOEMS) made of monocrystalline silicon. The primary application for these controllable micromirrors is the high dynamic and precise deflection of laser beams, for example in light detection and ranging ... Mehr lesen

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