Jason R. Picardo
Core Faculty
Assistant Prof.
Location
224, Chemical Engineering
Professional Appointments
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Associate,
International Centre for Theoretical Sciences, TIFR, Bangalore, India
https://www.icts.res.in/people/jason-picardo
Awards & Fellowships
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NASI-Platinum Jubilee Young Scientist Award (2022)
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Fulbright-Nehru Doctoral Research Fellowship (2015-2016)
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IIT Madras Institute Research Award (2015)
Multiscale fluid dynamics
My group studies nonlinear fluid-mechanical phenomena that span a wide range of scales. The multi-scale character may arise from the internal structure of the fluid, e.g. polymer solutions, or may be imposed through the system’s geometry (thin films), or may even be spontaneously generated, as in turbulent flows. We strive to understand the physics of these systems using asymptotic theories, reduced-order and/or data-driven models, and direct numerical simulations. For more information about our current work and open research positions, please visit our group's webpage: https://www.che.iitb.ac.in/group/multiscale-fluid-dynamics.
Publications
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Preserving large-scale features in simulations of elastic turbulence
S. R. Yerasi, Jason R. Picardo, A. Gupta, and D. Vincenzi
Journal of Fluid Mechanics, 1000, A37, 2024. -
In the chaos of turbulence, scientists chase glimpses of hidden order
S. Mukherjee and Jason R. Picardo
The Hindu (e-paper), 13 Dec 2023. -
Polymers in turbulence: stretching statistics and the role of extreme strain-rate fluctuations
Jason R. Picardo, E. L. C. VI M. Plan and D. Vincenzi
Journal of Fluid Mechanics, 969, A24, 2023. -
Small-scale intermittency of premixed turbulent flames
A. Roy, Jason R. Picardo, B. Emerson, T. C. Lieuwen and R. I. Sujith
Journal of Fluid Mechanics, 957, A21, 2023. -
Thin-gap averaging of variable-viscosity flows: application to thermoviscous fingering
D. S. Pillai, Jason R. Picardo and R. Narayanan
arXiv:2201.10045 -
Sedimenting elastic filaments in turbulent flows
R. K. Singh, Jason R. Picardo and S. S. Ray
Physical Review Fluids, 7, 084502, 2022 -
Polymer scission in turbulent flows
D. Vincenzi, T. Watanabe, S.S. Ray and Jason R. Picardo
Journal of Fluid Mechanics, 912, 2021, A18. -
Dynamics of a long chain in turbulent flows: Impact of vortices
Jason R. Picardo, R. Singh, S.S. Ray and D. Vincenzi,
Philosophical Transactions of the Royal Society A, 378, 20190405, 2020 -
Fluid dynamics in clouds: the sum of its parts
S. Ravichandran, Jason R. Picardo, S.S. Ray and R. Govindarajan,
Encyclopedia of Complexity and Systems Science, Springer, 2020 -
Lagrangian irreversibility and Eulerian dissipation in fully-developed turbulence
Jason R. Picardo, A. Bhatnagar and S.S. Ray,
Physical Review Fluids (Rapid), 5, 042601(R), 2020 -
Elasto-inertial chains in a two-dimensional turbulent flow
R. Singh, M. Gupta, Jason R. Picardo, D. Vincenzi and S.S. Ray,
Physical Review E, 101, 053105, 2020 -
Flow structures govern particle collisions in turbulence
Jason R. Picardo, L. Agasthya, R. Govindarajan and S. S. Ray,
Physical Review Fluids (Rapid), 4, 032601, 2019 -
Understanding droplet collisions through a model flow: Insights from a Burgers vortex
L. Agasthya, Jason R. Picardo, S. Ravichandran, R. Govindarajan and S. S. Ray,
Physical Review E, 99, 063107, 2019 -
Preferential sampling of elastic chains in turbulent flows
Jason R. Picardo, D. Vincenzi, N. Pal and S. S. Ray,
Physical Review Letters, 121, 244501, 2018 -
Sliding instability of draining fluid films
G. Dietze, Jason R. Picardo and R. Narayanan,
Journal of Fluid Mechanics, 857, 111-141, 2018 -
Layered two-phase flows in microchannels with arbitrary interface-wall contact angles
R. Dandekar, Jason R. Picardo and S. Pushpavanam,
Chemical Engineering Science, 192, 1058-1070, 2018 -
Interfacial pattern selection in defiance of linear growth
Jason R. Picardo and R. Narayanan,
Journal of Fluid Mechanics, 829, 345-363, 2017 -
Numerical study of enhanced mixing in pressure-driven flows in microchannels using a spatially periodic electric field
T. Krishnaveni, T. Renganathan, Jason R. Picardo and S. Pushpavanam,
Physical Review E, 96(3), 033117, 2017 -
Solutal Marangoni instability in layered two-phase flows
Jason R. Picardo, Radhakrishna T.G. and S. Pushpavanam,
Journal of Fluid Mechanics, 793, 280-315, 2016 -
Centrifugal instability of stratified two-phase flow in a curved channel
Jason R. Picardo, P. Garg and S. Pushpavanam,
Physics of Fluids, 27, 054106, 2015 -
Low Dimensional Modeling of Transport and Reactions in Two-Phase Stratified Flow
Jason R. Picardo and S. Pushpavanam,
Industrial and Engineering Chemistry Research, 54 (42), 10481–10496, 2015 -
Laterally stratified flow in a curved microchannel
Jason R. Picardo and S. Pushpavanam,
International Journal of Multiphase Flow, 75, 39–53, 2015 -
Understanding the Shape of Ant Craters: A Continuum Model
Jason R. Picardo and S. Pushpavanam,
Bulletin of Mathematical Biology, 77 (3) 470–487, 2015 -
Chaotic mixing in a planar, curved channel using periodic slip
P. Garg, Jason R. Picardo and S. Pushpavanam,
Physics of Fluids, 27, 032004, 2015 -
Modeling Extraction in Microchannels with Stratified Flow: Channel Geometry, Flow Configuration and Marangoni Stresses
Jason R. Picardo, Radhakrishna T.G., A. B. Vir, S. Ramji and S. Pushpavanam,
Indian Chemical Engineer, 57 (3-4), 322-358, 2015 -
Vertically stratified two-phase flow in a curved channel: Insights from a domain perturbation analysis
P. Garg, Jason R. Picardo and S. Pushpavanam,
Physics of Fluids, 26, 073604, 2014 -
Shifting and breakup instabilities of squeezed elliptic jets
D. S. Pillai, Jason R. Picardo and S. Pushpavanam,
International Journal of Multiphase Flow, 67, 189–199, 2014 -
Performance Comparison of Liquid-Liquid Extraction in Parallel Microflows
A. B. Vir, A. S. Fabiyan,, Jason R. Picardo and S. Pushpavanam,
Industrial and Engineering Chemistry Research, 53(19), 8171-8181, 2014 -
Holdup characteristics of two-phase parallel microflows
A. B. Vir, S. R. Kulkarni,, Jason R. Picardo, A. Sahu and S. Pushpavanam,
Microfludics and Nanofluidics, 16, 1057-1067, 2014 -
Core-annular two-phase flow in a gently curved circular channel
Jason R. Picardo and S. Pushpavanam,
AIChE Journal, 59, 12: 4871-4886, 2013 -
On the conditional superiority of counter-current over co-current extraction in microchannels
Jason R. Picardo and S. Pushpavanam,
Microfludics and Nanofluidics, 15, 5: 701-713, 2013 -
The Merkel equation revisited: A novel method to compute the packed height of a cooling tower
Jason R. Picardo and J. E. Variyar,
Energy Conversion and Management, 57: 167-172, 2012 -
Establishing the efficacy of the cleansing action of Tropical Evergreens: A modeling analysis of Asia’s largest lignite based power plant,
Jason R. Picardo and S. Ghosh,
Environment Asia, 4(2): 1-8, 2011