You are invited to join us at COMSOL Day Ahmedabad for a day of multiphysics modeling training, talks by invited speakers, and the opportunity to exchange ideas with other simulation specialists in the COMSOL community.
View the schedule for minicourse topics and presentation details. Register for free today.
This introductory demonstration will show you the fundamental workflow of the COMSOL Multiphysics® modeling environment. We will cover all of the key modeling steps, including geometry creation, setting up physics, meshing, solving, and postprocessing.
Learn how to convert a model into a custom app using the Application Builder, which is included in the COMSOL Multiphysics® software. You can upload your apps to a COMSOL Server™ installation to access and run the apps from anywhere within your organization.
**Simulation of Leaky SAW Resonators on Lithium Tantalate Substrate Using COMSOL Multiphysics®
This talk deals with the design and simulation of leaky surface acoustic wave (LSAW) resonators on a 42° YX lithium tantalate (LT) substrate. LSAW resonators are the building blocks of resonator-type low-loss acoustic filters that are extensively used in today’s wireless communication systems. For the first time, the use of COMSOL Multiphysics® for the analysis of such LSAW structures is demonstrated. The one-port LSAW resonator is taken up as a test case and the effect of bulk wave modes, particularly the surface-skimming bulk wave, on resonator performance is simulated and discussed. Simulations are carried out for different thicknesses of aluminum thin film to find out the most suitable electrode height from a spurious-free passband performance as well as from a fabrication feasibility standpoint.
Modeling Lunar/Planetary Heat Flow — Opportunities and Challenges
Systematic measurements of heat loss from lunar/planetary interiors and their spatial variations are needed to estimate the net heat flow on the planetary body. This aspect in turn has several geophysical implications. Lunar surface and subsurface temperatures of moons are dictated by a complex interplay of a number of parameters. These surface and subsurface temperatures also manifest significant latitudinal, stratigraphic, and topographical variability. One way of understanding these aspects before any future in situ measurements are available is to conduct laboratory experiments on an analogous sample under a simulated lunar environment. However, laboratory experiments have certain limitations in terms of simulating parametric variation and long-term variability. At this point, the only way we can improve our current understanding of these aspects is through comprehensive numerical simulations. Keeping this in mind, a comprehensive three-dimensional finite element thermal model has been developed using the COMSOL Multiphysics® software to address some of these aspects. The model is designed to account for a complex geometry, different sizes, irregular meshing, and parametric-based variation in physics and boundary conditions. The model results have been validated through laboratory experiments. Some of the aspects and challenges in developing such a model for planetary surfaces will be discussed.
Heat Transfer Simulations Using COMSOL® for Industrial Challenges: IIT Gandhinagar Case Studies
This talk showcases some industry challenges that can be addressed through heat transfer analysis and the role of the COMSOL Multiphysics® software in those analyses at the Energy Systems Research Laboratory in IIT Gandhinagar. In order to understand the temperatures and thermal loads on an integrated detector Dewar cooling assembly of space-based optical spectrometers, we employed a combination of radiative heat transfer and ray tracing capabilities of COMSOL Multiphysics®. This model examines the temperature and heat flux on the spectrometer’s focal plane array in order to maintain its low temperature (~ 90 K) for maintaining image resolution. In the second application, a catalytic heat exchanger is modeled by coupling heat transfer and endothermic chemistry for methanol steam-reforming applications. Within the heat exchanger (reactor), methanol is converted to hydrogen through steam reforming; the thermal requirements for this endothermic chemistry are provided by heat transfer from hot combustion gases on adjacent layers. Fluid flow, heat transfer, and complex elementary surface chemistry are all simulated using COMSOL Multiphysics® modules. In the third application, a vanadium redox flow battery (VRFB) for electronics cooling applications and power delivery is studied using COMSOL Multiphysics®. In this model, heat transfer, fluid dynamics, and electrochemistry are coupled and this helps in investigating the influence of flow field geometry, flow rate, and porous electrode properties on the performance of a miniaturized VRFB.
Get a quick overview of using the CFD Module and Heat Transfer Module within the COMSOL® software environment.
Explore the capabilities of COMSOL Multiphysics® for electromagnetics in the static and low-frequency regime with a focus on the AC/DC Module.
Get a brief overview of using the Structural Mechanics Module and its add-on modules within the COMSOL® software environment.
Learn about modeling high-frequency electromagnetic waves using the RF Module, Wave Optics Module, and Ray Optics Module.
Indian Space Research Organization Santanu Sinha is the head of the LTCC and Microelectronics Devices Division at the Space Applications Centre of Indian Space Research Organization (ISRO). He graduated in electronics and communication engineering from NIT Patna. He has over a decade’s experience in the design, development, and qualification of surface acoustic wave devices for various communication, navigation, and remote sensing payloads. He helped design and realize SiGe-BiCMOS-based front-end circuits for NAVIC user receivers. Santanu is leading a program to set up an indigenous RF high-power gallium nitride foundry as well as a team responsible for the design of low-temperature cofired ceramic (LTCC) circuits and subsystems up to 100 GHz. He has over a dozen papers in national and international journals and conferences, a patent to his credit, and a number of awards recognizing his work.
Physical Research Laboratory, Ahmedabad Karanam Durga Prasad is a scientist with the Planetary Sciences and Exploration Group at Physical Research Laboratory, Ahmedabad. He has extensive experience in the fields of space science and planetary sciences and exploration. His research involves understanding the thermal behavior of the Moon via experimental studies and numerical modeling as well as the design and development of instruments/payloads for planetary exploration missions. Karanam is the coinvestigator for an instrument to be flown on ISRO's Chandrayaan-2 mission. He has proposed a new technique of using a wireless sensor network for spatiotemporal exploration of planetary surfaces. He is now working on the design and optimization of wireless sensor networks for future lunar surface exploration.
IIT Gandhinagar Dr. Atul Bhargav is an associate professor of mechanical engineering at IIT Gandhinagar. He is passionate about building fuel cell systems for specific engineering applications. Through sponsored projects, he has been involved in research, development, and demonstration efforts in the area of hydrocarbon-based fuel cell systems. His other research interests include 3D-printed redox flow batteries for electronic cooling applications, data-driven modeling for electronic data center thermal management, and heat and mass transfer in cooking processes. He has a BTech degree from IIT Madras and a PhD degree from the University of Maryland, College Park. Dr. Bhargav previously worked as a product development engineer at Ballard Power Systems. He also has prior work in the automotive industry as an engineer and manager at Maruti Udyog Limited and AVL Technical Center India.