Personal profile
Research
I am a curiosity-driven researcher working on a wide range of fluid dynamics problems, specifically those related to environmental and geophysical flows. My overarching research goal is to formulate reduced-order/minimal models of complex flow problems. My current research work focuses on:
a) Density stratified flows (specifically, oceans): Stratified shear instabilities, internal gravity waves, submarine topography's role in internal wave propagation, and ocean mixing.
b) Surface waves: Wave-current-topography interactions in coastal oceans and how these influence cross-shelf tracer transport, fluid analog of black/white holes and Hawking radiation.
c) Vortex dynamics for problems ranging from vortices in planetary atmospheres to vortices shed by fishes and flapping foils.
d) Collective behavior: fish-school patterns and their energetic benefits.
e) Inverse problems in oceanography: Mapping sea-floor topography from information available at the ocean surface.
While theoretical analysis is my key focus, my group has developed multiple, process-oriented in-house codes (e.g. vortex methods, high-order spectral, finite-difference Boussinesq NSE solver in terrain-following coordinates) for conducting numerical experiments. My work has applications in ocean mixing, wave energy harvesting, off-shore structure protection, ocean pollution mitigation, and turbulence control.
Biography
- Nov 2023 - Present: Senior Lecturer of Fluid Mechanics, School of Science and Engineering, University of Dundee, UK.
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Sep 2019 - Oct 2023: Lecturer of Environmental Fluid Mechanics, School of Science and Engineering, University of Dundee, UK.
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Feb 2019 - July 2019: Alexander von Humboldt Fellow, Institute of Coastal Research, Helmholtz-Zentrum Geesthacht, Germany.
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Dec 2014 - Jan 2019: Assistant Professor, Dept. of Mechanical Engineering, IIT Kanpur, India.
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Nov 2013 - Dec 2014: Postdoc, Dept. of Atmospheric and Oceanic Sciences, UCLA, USA.
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July 2013 - Oct 2013: David Crighton Fellow, Dept. of Applied Mathematics and Theoretical Physics, University of Cambridge, UK.
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June 2013: PhD, The University of British Columbia, Vancouver.
Education/Academic qualification
Doctor of Philosophy, University of British Columbia
Award Date: 27 Nov 2013
External positions
Humboldt Fellow, Helmholtz-Zentrum Hereon
1 Feb 2019 → 31 Jul 2019
Assistant Professor, Indian Institute of Technology Kanpur
22 Dec 2014 → 31 Jan 2019
Keywords
- QC Physics
- TC Hydraulic engineering. Ocean engineering
- GC Oceanography
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 6 Clean Water and Sanitation
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SDG 7 Affordable and Clean Energy
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SDG 11 Sustainable Cities and Communities
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SDG 13 Climate Action
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SDG 14 Life Below Water
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Collaborations and top research areas from the last five years
Research output
- 37 Article
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Topographic Scattering of Internal Waves in the Presence of a Steady Surface Current
Gururaj, S. (Lead / Corresponding author) & Guha, A., Mar 2026, In: Journal of Geophysical Research: Oceans . 131, 3, 23 p., e2025JC023177.Research output: Contribution to journal › Article › peer-review
Open AccessFile4 Downloads (Pure) -
Five-wave interactions in inertia-gravity waves
Gururaj, S. (Lead / Corresponding author) & Guha, A., 28 Mar 2025, In: Physical Review Fluids. 10, 3, 034803.Research output: Contribution to journal › Article › peer-review
Open AccessFile74 Downloads (Pure) -
Stability analysis of time-periodic shear flow generated by an oscillating density interface
Biswas, L. & Guha, A. (Lead / Corresponding author), 25 Jul 2025, In: Journal of Fluid Mechanics. 1015, 23 p., A27.Research output: Contribution to journal › Article › peer-review
Open AccessFile52 Downloads (Pure) -
Blocking effects on mean ocean currents by offshore wind farm foundations
Carpenter, J. R. (Lead / Corresponding author) & Guha, A., 11 Oct 2024, In: Physical Review Fluids. 9, 10, 103802.Research output: Contribution to journal › Article › peer-review
Open AccessFile3 Link opens in a new tab Citations (Scopus)77 Downloads (Pure) -
Relating interfacial Rossby wave interaction in shear flows with Feynman's two-state coupled quantum system model for the Josephson junction
Heifetz, E. (Lead / Corresponding author), Bratspiess, N., Guha, A. & Maas, L., 10 May 2024, In: Physical Review Fluids. 9, 5, 19 p., 054802.Research output: Contribution to journal › Article › peer-review
Open AccessFile59 Downloads (Pure)
Datasets
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Topographic scattering of internal waves in the presence of a steady surface current
Gururaj, S. (Creator) & Guha, A. (Creator), Zenodo, 16 Jul 2025
Dataset
Activities
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39th Scottish Fluid Mechanics Meeting
Eaves, T. (Organiser), Cuthbertson, A. (Organiser) & Guha, A. (Organiser)
27 May 2026Activity: Other activity types › Other
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Journal of Fluid Mechanics (Journal)
Guha, A. (Peer reviewer)
1 Jan 2024 → 31 Dec 2024Activity: Publication peer-review and editorial work types › Publication peer-review
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Journal of Atmospheric and Oceanic Technology (Journal)
Guha, A. (Peer reviewer)
1 Feb 2024 → 28 Feb 2024Activity: Publication peer-review and editorial work types › Publication peer-review
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Reconstructing ocean’s density stratification from surface data
Guha, A. (Speaker)
29 May 2024Activity: Talk or presentation types › Oral presentation
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Interfacial Rossby wave interaction equivalent to coupled quantum 2SS
Guha, A. (Contributor)
24 Jul 2024 → 2 Aug 2024Activity: Talk or presentation types › Oral presentation
Press/Media
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Blocking effects on mean ocean currents by offshore wind farm foundations
11/10/24
1 item of Media coverage
Press/Media: Research