Technical Papers and Presentations

Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquet des phénomènes électriques, mécaniques, fluidiques et chimiques. utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.

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 of ...

Numerical Study of Navier-Stokes Equations in Supersonic Flow over a Double Wedge Airfoil using Adaptive Grids

V. Gopal[1], R. Kolluru[1]
[1]BMS College of Engineering, Bangalore, Karnataka, India.

Numerical study of aerodynamic characteristics in steady laminar supersonic flow over a double wedge airfoil is carried out using commercially available finite element based CFD tool COMSOL Multiphysics. The aerodynamic characteristics of double wedge airfoil like lift and drag are analyzed by solving Navier-Stokes equations in the flow field for various thickness to chord ratios (t_c) and angle ...

Thermal Analysis of Induction Furnace

A. A. Bhat[1], S. Agarwal [1], D. Sujish[1], B. Muralidharan[1], B. P. Reddy[1], G. Padmakumar[1], K. K. Rajan[1]
[1]Indira Gandhi Center for Atomic Research, Kalpakkam, Tamilnadu, India

Induction furnaces are employed for vacuum distillation process to recover heavy metals after electro-refining operation. Induction furnace of suitable heating rate and cooled by passive means are required to be developed for this purpose. It is planned to set up a mock up induction furnace which will simulate the conditions to be realized in actual vacuum distillation furnace for this purpose. ...

VLSI Layout Based Design Optimization of a Piezoresistive MEMS Pressure Sensors using COMSOL Multiphysics

R. Komaragiri[1], Sarath. S.[1], N. Kattabomman[1]
[1]NIT Calicut, Kozhikode, Kerala

This paper focuses on the diaphragm design and optimization of a piezoresistive Micro Electro Mechanical System (MEMS) pressure sensor by considering Very Large Scale Integration (VLSI) layout schemes. The aim of these studies is to find an optimal diaphragm shape by Finite Element Method (FEM) using COMSOL®, which is most suitable for VLSI layout. Optimal diaphragm shape is a diaphragm shape ...

A study on Spray Drying in Food Industry

S. Singh[1], N. Baheti[1], A. Tiwari[1]
[1]Institute of Engineering & Science, IPS Academy, Indore, Madhya Pradesh, India

Spray drying is a common drying technique in food industries to convert liquid to powder form. A good understanding on the dynamic behavior of the process is important to ensure proper control. The aim of this study is to develop empirical models for spray drying of whole milk powder and orange juice powder. A preliminary study on the effect of several inputs such as inlet air temperature, feed ...

The Spiral RF MEMS Switch in COMSOL Multiphysics

K. M. V. Swamy[1], B. G. Sheeparamatti[1], G. R. Prakash[1]
[1]Basaveshwara Engineering Collage, Bagalkot, Karnataka, India

This work presents the study of spiral RF MEMS switch which has low actuation voltage due to spiral structure. This work is inspired by the superior performance of electrostatic RF MEMS switches over the conventional state-of-the-art solid-state devices and the potential applications in communication field. The customary high actuation voltage limits the reliability and applications especially in ...

Studies of Lead Free Piezo-Electric Materials Based Ultrasonic MEMS Model for Bio sensor

P. Pattanaik[1], S. K. Kamilla[1], D. P. Das[2], S. K. Pradhan[3]
[1]MEMS Design Center, Institute of Technical Education & Research (ITER), Sikhya ‘O’ Anushandhan University, Bhubaneswar, Odisha, India
[2]Process Engineering and Instrumentation Lab, Institute of Minerals and Materials Technology (IMMT), Bhubaneswar, Odisha, India
[3]Dept of ECE, Hi-Tech Institute of Technology, Khurda, Odisha, India

This paper describes the design of an ultrasonic transducer using different lead free piezo-electric materials and evaluates their performance with different glucose levels in the human blood. COMSOL Multiphysics 4.2a was used for the simulation study using 2D axis symmetric model of piezoelectric transducer which was designed with lead free piezoelectric materials such as Barium Sodium Niobate ...

Effects of Fluid and Structural Forces on the Dynamic Performance of High Speed Rotating Impellers.

C. Thiagarajan[1], G. Shenoy[2], B. S. Shenoy[3]
[1]ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, India.
[2]Department of Mechanical & Manufacturing Engineering, Manipal Institute of technology, Manipal, India
[3]Department of Aeronautical & Automobile Engineering, Manipal Institute of Technology, Manipal, India

Vibration and Dynamic performances of the rotating machinery are conventionally evaluated based on the dominant structural forces such as the centrifugal forces. The increase in rotational speed, miniaturization and performance, demands for improved and accurate evaluation of the vibration performance. The inclusion of coupled effects of fluid and centrifugal forces can contribute significantly ...

Two-Phase Flow and Multiphysics Simulations in COMSOL

Dr. Singh has been working at the Chemical Engineering Division, Bhabha Atomic Research Centre, Mumbai since 2000. He has a Ph.D. from the Department of Chemical Engineering, IIT Bombay. He is a recipient of the Homi Bhabha Medal of Bhabha Atomic Research Centre in year 2000, Young Engineer Award of the Department of Atomic Energy in year 2008 and Award for Excellence in Thesis Work at IIT ...

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 ...

Quick Search

1 - 10 of 83 First | < Previous | Next > | Last