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.
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Finite Element Analysis of a Fiber Bragg Grating Accelerometer for Performance Optimization

N. Basumallick[1], A. Ghosh[1], P. Biswas[1], K. Dasgupta[1], S. Bandyopadhyay[1]
[1]Fiber Optics Laboratory, Central Glass and Ceramic Research Institute, Kolkata, West Bengal, India

Sensitivity of a cantilever-mass based fiber Bragg grating (FBG) accelerometer can efficiently be tailored by altering the distance between the axis of the FBG sensor to the neutral axis of the cantilever. To accomplish that in general, a backing patch is used to mount the FBG on the cantilever. Use of finite element analysis to quantify the influence of the material constant (Young’s modulus) ...

Calibration of MHD Flow Meter using COMSOL Multiphysics

S. Sahu[1], R. P .Bhattachryay[1], E. R. Kumar[1]
[1]Institute for Plasma Research, Bhat, Gandhinagar, Gujarat, India.

There is limited option for non-intrusive flow measurement of liquid metals at high temperature. Liquid metal flowing in a conduit along with the transverse magnetic field induces emf in the liquid metal. The emf developed; which has linear dependency on flow velocity; can be used for flow velocity estimation. In case of conducting conduit the emf can be measured at the conduit wall. The main ...

Design and Simulation of MEMS based Micro Pressure Sensor

P. Acharya[1]
[1]B.V.Bhoomaraddi College of Engineerring & Technology, Hubli, Karnataka, India

The world is getting digitalized, demands for new and emerging technologies have reached its peak, and customer demands have taken a U-turn. To cope with such unique requirements many systems and system devices are into the market and one of such enhancing technology is MEMS. MEMS are systems of small size, light weight, enhanced performance and reliability finding widest of applications in ...

Simulation of Magnetic Flux Distribution of Stator and Rotor Coil of Superconducting Air Cored Wind Turbine Generator using COMSOL Multiphysics

A. Hazra[1], G. Konar[1]
[1]Power Engineering Department, Jadavpur University, Kolkata, West Bengal, India

Wind energy is one of the fastest growing renewable energy sources for electricity generation over the past decade. The offshore installation of large-scale wind farms draws huge attention because of better wind profile. Direct drive synchronous wind turbine generators are now a global demand for light weight, compact, large scale wind turbine generators. Among various approaches in designing ...

Analysis & Design Optimization of Laterally Driven PolySilicon Electro-thermal Microgripper for Micro-objects Manipulation

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

Micro-grippers find applications in micro-robotics, microsurgery, micro-fluidics, micro-relays, assembling and miniature medical instrumentation. Actuation principle involved may be electrothermal, electrostatic, piezoelectric, shape memory and electromagnetic. It has been found that thermal actuation provides greater displacement at low voltages when compared to other mechanisms. A 3-D ...

Polymer Nanowire based Impedance Biosensor

N. Das[1], C. R. Chaudhuri[1]
[1]Department of Electronics and Telecommunication, BESUS, Howrah, West Bengal, India

In this paper, we have proposed an impedance biosensor based on polymer nanowire (made of polyaniline) for efficient electric field mediated capture of biomolecules. Existing polymer nanowire based biosensors fail to achieve high sensitivity for low surface to volume ratio as the whole length of the nanowire is exposed to the analyte .Also biosensors are dependent on diffusion mediated capture ...

Design and Simulation of MEMS based Thermally Actuated Positioning Systems

D. Mallick[1], P. K. Podder[1], A. Bhattacharyya[1]
[1]Institute of Radio Physics & Electronics, University of Calcutta, Kolkata, India

With continuous advancement in nanotechnology, requirement is rising for high precision motion controlled positioning system. Such system plays crucial role in the fabrication of micro and nano-sized objects and assemblies. They can be used for automated mask aligner, as biological sensors, in optical technology as deformable mirrors. Most significant requirements for the actuators in a ...

Design and Simulation of Valveless Piezoelectric Micropump

L. Nayana[1], P. Manohar[1], S. Babu[1]
[1]Department of Electrical Engineering, Visvesvaraya Technological University, Bangalore, Karnataka, India

In this paper some discrete parts of a valveless piezoelectric micropump for drug delivery system is designed and simulated. The core components of the micropump are actuator unit that converts the reciprocating movement of a diaphragm actuated by a piezoelectric actuator into a pumping effect and Nozzle/diffuser elements that are used to direct the flow from inlet to outlet. Simulations are ...

Analysis of Electroosmotic Flow of Power-law Fluids in a Microchannel(1D)

K. SriNithin[1]
[1]IIT Kharagpur, Kharagpur, West Bengal, India

Electroosmotic flow of power-law fluids in a slit channel(1D) is analyzed. The governing equations are the Poisson–Boltzmann equation, the Cauchy momentum equation, Generalized Smoluchowski equation and the continuity equation are used to get shear stress, dynamic viscosity, and velocity distribution. Simulations are performed to examine the effects of ?H, flow behavior index, double layer ...

Simulation of Flux Density in a Hybrid Coil SMES using COMSOL Multiphysics

S. Roy[1], G. Konar[1]
[1]Power Engineering Department, Jadavpur University, Kolkata, West Bengal, India

Energy storage is an essential component for hybrid power system using non-conventional energy resources. Batteries, compressed air energy storage, pumped hydro plants etc. have been developed for storage. However, these have demerits like losses involved in energy conversion and time delay. Superconducting Magnetic Energy Storage (SMES) can be a good alternative as it stores electrical energy ...