Curriculum Vitae

Subhajit Biswas, Ph.D.

Objectives

Immediate: Obtain a faculty position to teach passionately and conduct high-quality fluid mechanics research.
Long-term: Address fluid mechanics problems with societal and industrial relevance, advancing fundamental understanding and transferring knowledge to future generations.

Employment History

• UKRI Post-doctoral Research Fellow, Aerodynamics and Astronautics, University of Southampton, UK (Mar 2023 – present)
• Post-doctoral Researcher, Flow Physics Lab, Mechanical Engineering, IISc Bangalore, India (Apr 2022 – Feb 2023)

Education

• Ph.D. Mechanical Engineering, IISc Bangalore (2015 – 2022)
  Thesis: Interaction of bubble(s) and buoyant rigid particles with vortical structures
  Link

• M.E. Mechanical Engineering, IISc Bangalore (2013 – 2015)
  Thesis: Experimental investigation of thrust generation using rigid and flexible foils

• B.Tech. Mechanical Engineering, West Bengal University of Technology (2008 – 2012)
  Thesis: Particle emission control by using theoretical electro-cyclone model

Research Expertise

• Experimental fluid mechanics, turbulence, aerodynamics
• Environmental flows (pollutant dispersion, ventilation)
• Multi-phase turbulent flows (bubble/particle-laden flows)
• Drag reduction, vorticity dynamics, fluid-structure interactions

Selected Publications

(See Publications page for full list.)

1. Subhajit Biswas, R.N. Govardhan. Interaction of a vortex ring with a rigid particle. Accepted, JFM.
2. Subhajit Biswas, C. Vanderwel. Flow through a hollow cube in turbulent boundary layer. Flow (2024). doi:10.1017/flo.2024.14
3. Subhajit Biswas, R.N. Govardhan. Effects of salt concentration on bubble injection drag reduction. Exp Fluids (2024). doi:10.1007/s00348-024-03770-8

Skills

• Experimental: Wind tunnel, water tunnel, LDA, PLIF, PIV (2D/3D, time-resolved, 2-phase), PTV, FFID, drag force and load cell measurements, high-speed imaging, flow visualization (dye, hydrogen bubbles, shadowgraphy).
• Programming: MATLAB for data processing and analysis.
• Software: LabVIEW, Solidworks, ImageJ, Dantec Dynamics, DAVIS, PIVLab.

Fellowships and Awards

• MHRD SRF & JRF, Government of India (2015–2020) during PhD.
• MHRD Fellowship, Government of India (2013–2015) for M.E.
• Best Poster Award, Aeronautics & Astronautics Research Symposium, Southampton (2024).
• Best Oral Presentation, FMFP, IIT Bombay (2018).
• Best Poster Presentation, IISc Research Symposium (2018).

Grants

• Drag reduction in turbulent boundary layer using air bubble injection (2018–2021), SERB India, PI: Prof. R.N. Govardhan.

Teaching and Mentoring

• Teaching assistant for Fluid Mechanics at IISc (2018).
• Teaching assistant for CAD-CAM Lab, WBUT (2011–2012).
• Supervised undergraduate, masters interns, project assistants, and one PhD student at IISc and University of Southampton.

Reviewing

Reviewer for Physics of Fluids, Experiments in Fluids.

Invited Talks

• Vortex ring and bubble interaction: An idealization of bubbly turbulence, Remote Colloquium on Vortex Dominated Flows, Dec 8th, 2023. Link

Projects

Postdoctoral (University of Southampton)

• Pollutant transport in cross-ventilating flow through a hollow cube.
• Flow characterization over isolated tall building (experiments + LES).
• Scalar transport by coherent structures in flow over bluff bodies.
• Wind tunnel studies of scalar transport around hollow building (with University of Surrey).

Doctoral (IISc Bangalore)

• Interaction of deforming air bubbles/rigid particles with vortex rings.
• Drag reduction via bubble injection in turbulent channel flows.

Masters (IISc Bangalore)

• Thrust generation by pitching rigid and flexible foils.

Undergraduate

• Theoretical electro-cyclone model for diesel soot particle emission control.

References

• Prof. Raghuraman N. Govardhan – Profile – rng@iisc.ac.in
• Prof. Christina Vanderwel – Profile – c.m.vanderwel@soton.ac.uk
• Prof. Bharath Ganapathisubramani – Profile – G.Bharath@soton.ac.uk
• Dr. Matteo Carpentieri – Profile – m.carpentieri@surrey.ac.uk
• Prof. Zheng-Tong Xie – Profile – z.xie@soton.ac.uk