Research Experiences Senior Research Fellow, Microfluidics Research Laboratory, Indian Institute of Technology, Guwahati, (Jan. 2018 - Present) Junior Research Fellow, Microfluidics Research Laboratory, Indian Institute of Technology, Guwahati, (Jan. 2016 - Dec. 2017)
Electrowetting on liquid dielectric (EWOL): Experimentally observed and characterized the dynamics of electrowetting on a liquid dielectric surface, instead of conventional solid dielectric surface.
Electric discharge induced atomization of sessile liquid drops: Experimentally explored the effect of confinement of electric discharge inside a liquid droplet, finally leading to droplet atomization. With tunable experimental parameters, we can control the size of the secondary droplets generated.
Magnetowetting of sessile ferrofluid droplets: The wetting behavior of paramagnetic droplets on surfaces with differential wettability is studied experimentally. Additionally, specific stress has been given to analyze the effect of the elastic nature of the underlying surface on magnetowetting.
Droplet generation in a porous network: The study elucidates the critical aspects of droplet generation from a porous network such as yarn engendered by capillary flow. The dynamics of the contact line and scaling laws have been proposed.
Electrocoalesence of sessile liquid droplets on superhydrophobic surface: The effect of adhesive behavior and surface microstructure of a superhydrophobic surface on the electric field mediated merging and mixing of a pair of liquid droplet is studied extensively. The study has been extended to the in-situ preparation of gold nanoparticles in a Lab-on-chip device.
Role of surface wettability on droplet impact: The various regimes of droplet impact on a superamphiphobic surface has been explored extensively with the help of experiments. A few new regimes have been unfurled in case of the impact of viscous liquid droplets with enhanced mass transfer and atomization.
Vortex wings induced enhanced mixing of two immiscible fluids in a microchannel: The role of vortex wings of different shapes (triangular, airfoil, rectangular) and aspect ratios in the enhancement of mixing efficiency of two immiscible liquids in a microchannel is studied with the help of 3D numerical simulations.
Junior Research Fellow, Indian Institute of Technology Guwahati, (Aug. - Dec. 2015)
P. I. – Dr. Amaresh Dalal
Development of a general purpose CFD solver over a hybrid unstructured grid -“Anupravaha”.
Validation of test cases with the results obtained from “OpenFOAM”.
Undergraduate Honors Thesis, NIT Silchar, Assam, Advisor: Dr. P.K. Patowary, (2012-2013) Project title: Design and Analysis of Piezoelectric Driven Synthetic Jet Actuator for Mems Applications.
Modeling and analysis of Synthetic Jet Actuator in the MEMS module of COMSOL Multiphysics Version 3.4.
Lumped Element Analysis of the proposed model and validation with results from COMSOL.
Optimization of the design parameters by fluid mechanical analysis in FLUENT.
Development of CFD pre-processor and postprocessor of an in-house solver using CGNS for various aerodynamic applications.
Summer Research Fellow, Indian Institute of Technology Guwahati, (May – July 2011)
P. I. – Dr. Uday Shankar Dixit (IIT Guwahati
Designed and fabricated the prototype of the alternate form of traditional assamese rice pounding tool, “DHAKEI”, using the principle of four-stroke engine.
Experimental study of friction stir welding of thin sheet of aluminum alloys using vertical milling machine.
Teaching Experiences Graduate Teaching Assistant, Indian Institute of Technology, Guwahati, (Spring 2016-Fall 2019)
Courses:
Fluid Mechanics (Instructor: Dr. D. N. Basu), class strength: 45, undergrad
Basic Thermodynamics (Instructor: Dr. D. N. Basu), class strength: 45, undergrad
Conduction and Radiation (Instructor: Dr. D. N. Basu), class strength: 60, undergrad
CNC milling and CNC lathe machine (Non-conventional Machining Workshop, IIT Guwahati, Superintendent: Dr. P. S. Robi), class strength: 30, undergrad
Online Teaching Assistant, MOOC online course by Indian Institute of Technology, Madras, (Fall 2018-Spring 2020)
Courses:
Design and development of fuel system components of both 800 CC and 1600 CC diesel engines and to study their performance at the component level, different stages of vehicle development, and demographic conditions, accompanied by a robust feedback loop.
Design and development of turbocharging components of 800 CC diesel engine and to study their performance at different stages of vehicle development and implementation of countermeasures whenever required.
Design of Experiments (DOE) for all the fuel components at component level.
Designing of process flow for the defect free production of all the sheet metal components, and to study the durability during each vehicle level durability test.
Study and analyze the performance of existing rubber and metal tube components of the fuel system and improvisation of the performing testing methods for them.
Analysis and design the layout of the components in the engine and its periphery.
Analysis of failure of existing fitting components (screws, bolts and nuts) and propose best design parameters for the improvement of performance.
Worked in a team comprising of various departments, including engineering, quality testing, manufacturing, and supply chain management, along with the Japanese experts, and took full responsibility for the components concerned from the design stage to the vehicle launch stage.
Implementation of value analysis and value engineering (VA/VE) method for cost optimization.
Machine Operator, Non-conventional Machining Workshop, Indian Institute of Technology, Guwahati, (Jan. 2016 – Dec. 2017)
Modelling and product development on Wire EDM machine for various student and research projects of IIT Guwahati.
Modelling and product development on 3D printing machine.