RESEARCH EXPERIENCE: 

TITLE: High speed imaging of sprays using a low-cost illumination source (Sept’ 2018 to April 2019) 

(As a Project Engineer at IIT Kanpur under Prof. Vaibhav Arghode PhD, University of Maryland, College Park)

Sponsoring Agency: Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Govt. of India

• Use of pulsed light-emitting diodes (LEDs) for illumination to obtain high contrast and high resolution images of dilute sprays.

• Developing statistical and time-spectral image processing algorithms to extract droplet size distribution and other spray properties. 

TITLE: Experimental investigation of liquid jet atomization in non-uniform gaseous cross-flow (Sept’ 2017 to July 2018) 

(As a Project Engineer at IIT Kanpur under Prof. Vaibhav Arghode at IIT Kanpur, India)

Sponsoring Agency: SERB, DST, Govt. of India

• • Impact of varying liquid-to-air momentum-flux ratio was studied on the breakup characteristics of a liquid ethanol jet injected into a non-uniform cross-flow of air relevant to a reverse cross-flow combustor investigated earlier.

  •  High-speed imaging was used to obtain primary breakup characteristics, spray centreline and outer edge trajectories to estimate penetration and dispersion.  

TITLE: Experimental investigation of a liquid fuelled reverse cross-flow colorless combustor (Dec’ 2015 to Jun’ 2017)  

(Master’s thesis at IIT Kanpur under Prof. Vaibhav Arghode) 

• • A reverse cross-flow colorless combustor facility was designed and developed and operated with ethanol, both in non-premixed and premixed-prevaporized for gas turbine applications.

  • OH* chemiluminescence, global flame imaging and emission measurements were performed to study the effect of varying thermal loading conditions using different injection diameters on the combustor performance. 

TITLE: Open loop active control of combustion noise in gas turbine combustor (Jan’ 2016 to April 2016)

(Academic project at IIT Kanpur under Prof. Kamal Poddar, PhD, UC San Diego)

• • A comprehensive LabVIEW code was developed to modulate the fuel flow to reduce direct combustion noise inside a laboratory scale gas turbine combustor.

  • Calibration of different sensors, data acquisition using NI DAQ cards and subsequent processing were thoroughly performed.

TITLE: Numerical simulation of low Reynolds number flow past two circular cylinders in Tandem (Nov’ 2014 to April 2015)

(Bachelor’s Degree project (Senior Year) at Anna University – Chennai, India under Dr. Supradeepan K., PhD, IIT-Kharagpur) 

• 2-D incompressible finite volume Navier-Stokes solver based on Consistent Flux Reconstruction for Unstructured Grids (CFRUNS) developed by Supradeepan et al., was comprehensively studied and applied to study the 2-D flow problem past two tandem cylinders.

• Vorticity contours were plotted to identify vortex shedding phenomenon.

• Drag and lift coefficients were estimated and analysed for different axial spacing between the two cylinders. 

DESIGN PROJECTS: 

TITLE: Aircraft Design Project-I: Design of Subsonic Jet Trainer Aircraft (Aerodynamic Design- Theory approach) (Jan’ 2014 to April 2014)

(Undergraduate Academic Project, Team of four members)

• • Performed weight estimation and selection of main parameters for a subsonic jet trainer aircraft.

  • Selected power plant, aerofoil, wing, tail and control surfaces 

  • Prepared balance and three-view diagrams

  • Performed detailed performance and stability analysis.

TITLE: Aircraft Design Project-II: Design of Subsonic Jet Trainer Aircraft (Structural Design- Theory approach) (July 2014 to Nov’ 2014)

(Undergraduate Academic Project, Team of four members)

• •  Prepared gust and manoeuvrability envelopes 

  • Performed load estimation of wings.

  • Performed wings and fuselage shear flow calculations.

  • Developed detailed structural layouts.

If you're interested in reading the work that I've done in my  Master's thesis, please mail me at preetam.iitk@gmail.com for a copy of the same.

For publications, you can visit my Google Scholar page. 

Pictures and videos of some of the experiments mentioned above will be updated soon.