Veröffentlichungen und Präsentationen

Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Lab on Chip for Detection of E.coli Cell Using Capacitance Modulation

S. Gupta
Visvesvaraya National Institute of Technology
Nagpur
Maharashtra, India

In this paper , lab on chip (LoC) is proposed to detect an E.coli bacteria in water. LoC is a chip of size ranges from millimeter to few centimeter in which we can combine laboratory functions. The main components in lab on chip are micro fluidic structure, functionalized sensing block , measurements (interface)system. The microfluidic structure and sensing block is to be simulated in COMSOL ...

Effect of Channel Width on Fuel Cell Performance Using 3D Modelling

R. Pushpangadan, S. S. Dimble, and S. P. Duttagupta
IIT Bombay
Mumbai
Maharasthra, India

A three Dimensional model of the PEM Fuel cell is implemented using COMSOL Multiphysics and the channel width is varied to study the performance.Effect of channel width on the performance of the cell is studied by varying the width of the channel and keeping channel width to rib ratio constant at 1. Rib width is the width of the GDL area which is not covered by the channel. All other parameters ...

A MEMS Condenser Microphone for Consumer Applications

S. L. Pinjare, V. S. Nagaraj, S. N. Savitha, S. Kesari, M. S. Sagar, and K. R. Roshan
Nitte Meenakshi Institute of Technology

The MEMS microphone is also called microphone chip or silicon microphone. The pressure sensitive diaphragm is etched directly into a silicon chip by MEMS techniques and is usually accompanied with integrated preamplifier. Most MEMS microphones are variants of the condenser microphone design. The MEMS microphone has been successfully fabricated and tested in an anechoic chamber. The microphone ...

Current Density, Electric Field and AC Loss Simulation of Mono Block and Single Layer Polygonal HTS Cable Using COMSOL Multiphysics

G. Konar[2], R. K. Mandal[1], and N. Chakraborty[2]
[1]Electrical Engineering Department, Seacom Engineering College, Dhulagar,West Bengal, India
[2]Power Engineering Department, Jadavpur University, Kolkata, West Bengal, India

High temperature super conducting (HTS) cables are gaining attentions for their ability to transmit more power compared to their convention counterparts with essentially no resistance and electromagnetic emissions. They are also appropriate for solving the grid congestion problem in the power corridors with their reduced size and weight. But the AC loss that occurs in the HTS cables reduces the ...

Modeling of Dehydration of Mushroom Using Finite Element Method

C. Anandharamakrishnan[1], A. Choudhary[2], and R. Gopirajah [1]
[1]Human Resource Development,CSIR-Central Food Technological Research Institute, Mysore, India
[2]Manipal Institute of Technology, Manipal, Karnataka, India

Dehydration is one of the methods that would extend the shelf life of mushrooms. Dried mushrooms can be used in many different types of products. Furthermore, elevated temperatures during drying enhance enzymatic reactions that can result in improved flavor of dehydrated mushrooms. This study aims to model the dehydration of mushroom using finite element modeling (FEM) taking into account of ...

Study of Subwavelength Gratings to Understand Their Polarization Behaviour

M. G. Sridharan[1], A. Prabhakar[2], and S. Bhattacharya[2]
[1]Photonics Group, Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India
[2]Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India

Phase gratings are used in many applications owing to their high transmission and thus higher diffraction efficiencies. COMSOL is based on finite element modeling and is chosen for 2 reasons; firstly, because it can handle complex 2-D and 3-D geometries and secondly, it can handle the vector nature of these structures. The objective of the design is to compare the results of a commonly used ...

CFD Analysis of Argon Cell for Pyrochemical Processing

S. Agarwal[1], S. P. Ruhela[1], B. Muralidharan[1], B. P. Reddy[2], B. K. Sharma[1], K. Nagarajan[2], C. A. Babu[3], and K. K. Rajan[1]
[1]Fast Reactor Technology Group, Indira Gandhi Centre for Atomic Research
[2]Chemistry Group, Indira Gandhi Centre for Atomic Research
[3]HBNI & CDG, Indira Gandhi Centre for Atomic Research

An inactive Demonstration facility for the integrated pyroprocess, named High temperature Electrorefining (HTER) facility is in developing stage. This facility is equipped with several types of pyroprocess equipment such as electro-refiner, salt and cadmium distillation equipment, scraping equipment and tilting equipment inside an Argon cell. To operate the argon cell safely, all generated ...

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
Coimbatore
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 ...

Voltage and Capacitance analysis of EWOD system using COMSOL

D. Das[1], S. Sohail[1], S. Das[2], and K. Biswas[1]
[1]Electrical Engineering Department, IIT Kharagpur, India
[2]School of Medical Science and Technology, IIT Kharagpur, India

Electrowetting on Dielectrics (EWOD)systems is widely practiced digital microfluidic technique, used in Lab-on-a-Chip (LoC) system for biomedical application. In EWOD, with applied potential, the droplet minimizes its surface energy by transiting towards the actuated electrode. The problems with EWOD device for biological sample are that it will damage the cells if applied voltage across it ...

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 are piezoelectric, magnetic, thermal, SMA, electrochemical, electrostatic actuation. Electrostatic actuation ...

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