See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.
View the COMSOL Conference 2019 Collection
RF and Microwave Engineeringx

Multiphysics Modeling of High Power Magnetron

A. Jadhav[1], K. Tuckley[1], H. Dixit[2], J. John[1]
[1]IIT Bombay, India
[2]BITS Pilani, Hyderabad Campus, India

The magnetron is one of the oldest and the most popular of the vacuum tubes. As they are very robust, low cost and highly efficient source of high-power microwaves, they have been a common choice for defence, medical, industrial and commercial applications. This work presents the ... Read More

Simulation Studies of Fast Wave Launchers for Current Drive in TOKOMAK using COMSOL Multiphysics®

J. Ganji[1], H. Dixit[1], P. Sharma[2]
[1]BITS Pilani, Hyderabad Campus, India
[2]INSTITUTE FOR PLASMA RESEARCH, India

Helicon current drive is gaining the attention of plasma community to achieve off-axis study state plasma operation for longer duration for high electron density conditions. RF launchers are used to launch the helicon waves to the desired region of the current drive inside the plasma. A ... Read More

Multiphysics Analysis of a High Power RF Window using COMSOL Multiphysics®

Y. Jain[1], P. Sharma[2], H. Dixit[3], P. Parmar[4], K. Ambulkar[1]
[1]Institute for Plasma Research, PO: Bhat, Gandhinagar, INDIA, India
[2]INSTITUTE FOR PLASMA RESEARCH, India
[3]BITS Pilani, Hyderabad Campus, India
[4]Institute for, India

The design and analysis of a multidimensional system involving multiphysics considerations requires solving of complex equations. A high power continuous wave RF component is one such system. The poster reports the design, multiphysics analysis, low and high power experimental results of ... Read More

Study of Scattering Distribution for Spherical Particles

D. Garg[1], A. Bandyopadhyay[2], A. Sengupta[3]
[1]Department of Physics, Indian Institute of Technology Delhi, New Delhi, India, India
[2]Joint Advanced Technology Center, Indian Institute of Technology Delhi, New Delhi, India., India
[3]Department of Physics, Indian Institute of Technology Delhi, New Delhi, India., India

Terahertz (THz) radiation lies in between the microwaves and the infrared region of electromagnetic wave spectrum corresponding to the wavelength 30 µm to 3,000 µm. This EM range has found widespread applications in several industrial ... Read More

Estimation of Variablities due to Stochastic Variation in Geometric Parameters in Microwave Applications

A. B. N.[1], K. Vinoy[1]
[1]Indian Institute of Science, Bangalore, India

Predicting the stochastic behaviour of electromagnetic systems is important in microwave circuit in applications such as terahertz, millimetre wave circuits, resonating structures, substrate integrated waveguides etc. Computational cost in predicting the variations due to the stochastic ... Read More

EM Design and Analysis of Antenna Enclosed Ground-Based Radome

R. N.[1], S. Durgesh[1], B. Choudhury[1], R. Nair[1]
[1]CSIR-NATIONAL AEROSPACE LABORATORIES, India

Radome is a dielectric Electromagnetic (EM) transparent structure that encloses antenna and protects from various environmental conditions. The advancements in the field of high performance antennas increase the challenges in EM design and analysis of radome. The presence of radome ... Read More

Effect of Meshing in Radar Cross Section Estimation of Complex Surfaces

M. S.[1], V. R.[1], B. E. V.[1], B. Choudhury[1]
[1]CSIR-NATIONAL AEROSPACE LABORATORIES, India

Radar cross section (RCS) estimation of electrically large structures has been always an important research area. RCS approximation of a military platform is very crucial, for electronic warfare applications. Therefore, the need for simulating the RCS of complex shapes is essential since ... Read More

Investigation of Geometry and Positioning Influence on Optical and Thermal Properties of Gold Nanoparticles.

R. Deska[1], J. Olesiak-Bańska[1], K. Matczyszyn[1]
[1]Wroclaw University of Technology, Poland

In COMSOL Multiphysics® RF Module we investigate optical properties of various shapes of gold nanoparticles suspended in water and deposited on a glass substrate. Further, using the Microwave Heating Multiphysics coupling we want to evaluate heating effects related to electromagnetic ... Read More

High-Order Harmonic Radiation of a Single Helium Atom Driven by a Strong Laser Pulse

A. Czirják[1], S. Majorosi[2]
[1]University of Szeged, Hungary
[2]Univesity of Szeged, Hungary

Attosecond light pulses have revolutionized our view of fundamental atomic, molecular and solid state processes in the attosecond - femtosecond time domain [1]. The availability of such pulses is based on high-order harmonic generation (HHG) in noble gas samples by a femtosecond laser ... Read More

Lightning-Fast Simulation of Open System: an Effortless Modal Approach

P. Chen[1], Y. Sivan[1]
[1]Ben Gurion University, Israel

A key goal of nanoscale quantum optics is enhancing the weak interaction of light with matter, enabling applications such as spectroscopy on individual molecules, generating single photons for quantum computing, solar energy harvesting, passive radiative cooling, and nanoscale optical ... Read More

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