R. Coker , J. Knox , B. O'Connor ,
 Marshall Space Flight Center - NASA, Huntsville, AL, USA
Introduction: Ongoing work to improve water and carbon dioxide separation systems to be used on crewed space vehicles combines sub-scale systems testing and multi-physics simulations. Thus, as part of NASA’s Advanced Exploration Systems (AES) program and the Life Support Systems Project (LSSP), fully predictive COMSOL Multiphysics® software models of the Four Bed Molecular Sieve (4BMS) of the ...
Electromagnetic(EM) and Thermal Characterization of a Microwave Oven in COMSOL Multiphysics® Software
S. Fujii , E. Suzuki ,
 National Institute of Technology, Okinawa College, Nago, Okinawa, Japan
 Tokyo Institute of Technology, Meguro, Tokyo, Japan
Chemical reactions performed under microwave irradiation often have high reaction rates and high selectivities, which enable reactor sizes to be compact and processes to be energy-conserving. A microwave oven is widely used for microwave chemical processing and chemical synthesis. The COMSOL Multiphysics® software was used to obtain the the distribution of the electromagnetic (EM) field in the ...
A. Ferreira , J. Ochoa , R. Siskey ,
 Drexel University, Philadelphia, PA, USA
 Exponent Failure Analysis Associates, Philadelphia, PA, USA
Introduction: Medical devices undergo a series of evaluations in order to determine their performance and level of safety in a magnetic resonance (MR) environment. The standard of focus for this work is ASTM F2052-15 which measures the induced displacement of a device due to the spatial gradient fields present in the MRI scanner bore . This test entails suspending the device from a string ...
A. Kumar , S. Pramanik , M. Mishra ,
 Indian Institute of Technology Ropar, Rupnagar, Punjab, India
 Indian Institute of Technology Ropar, Rupnagar, Punjab, India; Nordita, SE-10691, Stockholm, Sweden
Darcian and non-Darcian porous media are characterized by the porosity of medium. To capture miscible viscous fingering in both types of porous media, a new model built with COMSOL® software is presented by coupling of two different physics interfaces (hydrodynamics and transport of solute). For modeling in non-Darcian porous media, Brinkman equation is used. In our simulations, perturbations ...
A. Donaldson , A. Thimmaiah ,
 Dalhousie University, Halifax, Nova Scotia, Canada
 National Institute of Technology Karnataka, Mangalore, Karnataka, India.
COMSOL Multiphysics® software is used to explore the impact of distributor width on the film thickness, and the resulting sensitivity of overall thermal efficiency in a plate and frame triple-effect evaporator. A stable film is crucial to maintain a minimum wetting rate, to circumvent the “dry-out condition”. The hydrodynamics of stable film development as a function of distributor width was ...
H. Sinha , A. Mukherjee, N. Chattoraj,
Birla Institute of Technology Mesra, Ranchi, Jharkhand, India
Bolometer is a thermal infrared sensor used for measuring the intensity of radiation via the heating of a material due to the radiations. A bolometer consists of an absorptive element, a thin layered material, connected to a thermal reservoir. The result is that any radiation received on the absorptive element raises its temperature above that of the reservoir: the greater the absorbed ...
J. Thanikachalam, P. Nagaraj ,
 Mepco Schlenk Engineering College, Sivakasi , India.
The present work deals with dynamic simulation of magnetic particles present in the carrier fluid when subjected to external magnetic field. Magneto rheological fluid comes under classification of smart materials, which contain pure CI iron particles, silicon oil as carrier fluid and additives. The yield stress of the magneto rheological fluid can be controlled by varying the external magnetic ...
Direction of Arrival (DoA) Performance of Several Acoustic Vector-Sensor Configurations in the Reverberant Environment
M. Wajid , A. Kumar , R. Bahl ,
 Indian Institute of Technology Delhi, Delhi, India.
Several acoustic vector-sensor (AVS) configurations have been tested for direction of arrival (DoA) estimation in a diffused reverberant environment using pressure gradient method. The discrete pressure sensors have been arranged with different geometrical placement and pressure gradients have been estimated for finding DoA of an acoustic source. The received signals at the pressure sensor for ...
R. Kapuganti , S. Anbazhagan,
 HCL Technologies, Chennai, India.
Drop test simulation is one of the important tool used for the impact behaviour study of electronic components. It identifies the flaws in design. The reliability and performance of electronic consoles after the drop is a major concern. Devices are expected to continue functioning after suffering a drop. The model is allowed to fall freely due to gravity load application. Drop test standard ...
V. Gnanaraj, V. Mohan, and B. Vellaikannan
Thiagarajar College of Engineering, Madurai, Tamilnadu, India
A fundamental understanding of the transport phenomena in microfluidic channels is critical for systematic design and precise control of such miniaturized devices towards the integration and automation of Lab-on- a-chip devices. Electroosmotic flow is widely used to transport and mix fluids in microfluidic systems. Electroosmotic transport in convergent divergent micronozzle is significant in ...