Jason Ryan Picardo
Name: Jason Ryan Picardo
ID: CH11D026
Email id: picardo21@gmail.com
Contact: Room No 3046, Krishna Hostel, IIT Madras
Educational Background:
B.Tech. in Chemical Engineering (Gold Medalist), VIT University, Vellore - Class of 2011
Currently pursuing PhD in Chemical Engineering, Indian Institute of Technology Madras, Chennai
Awards and Honors:
1. Young Researcher Award at the 1st Environment Asia International Conference, Thailand, 2011. The award was for the paper entitled "Establishing the efficacy of the cleansing action of Tropical Evergreens: A modeling analysis of Asia's largest lignite based power plant", co-authored with Dr. S. Ghosh (Prof. at VIT University, Vellore Campus).
2. Institute Research Award in recognition of the quality and quantity of research work on 56th Institute Day, IIT Madras, 2015
3. Fulbright-Nehru Doctoral Research Fellowship to visit University of Florida from Sep 2015 to May 2016
USIEF Profile page
Research Interests:
Presently my research efforts are focused on the following areas:
1. Physics of Multiphase Layered flows : Phenomena that are well understood in case of a single fluid can manifest in an unexpected and intriguing fashion in multilayer configurations, due mainly to inter-fluid coupling that originates from interfacial stresses, capillary forces, and inter-fluid transport of heat and solutes. Apart from their relevance to applications such as process separations, micro-reactors and advanced coatings, these flows provide an opportunity to study a wide range of interfacial phenomena in a relatively simple setting wherein interacting physical mechanisms may be scrutinized without the additional burden of complex boundaries and background flows.
2. Hydrodynamic Stability and Pattern Formation : My work on spontaneous pattern formation and instabilities has proceeded in tandem with my research on multiphase layered flows. Typically, multiple instability mechanisms are at work in these flows, acting both in the domain and at the inter-fluid interface(s). Some progress through this morass of unstable perturbations and physical parameters has been made via systematic studies of special cases, using the tools of asymptotic analysis, energy budgets and directed computations. Currently, I am employing model order reduction techniques to allow a deeper scrutiny of these instabilities, particularly in configurations with multiple unstable interfaces.
3. Low-dimensional modelling or Averaging of multi-scale phenomena : Systematic order reduction or averaging techniques based on the mathematical theory of Dynamical Systems is a powerful tool for analyzing systems in which temporal and/or spatial variations occur over multiple disparate scales. Far more than simply churning out good approximations in quick time, these reduced models provide the opportunity for an in-depth analysis of multi-scale systems that would otherwise be neigh impregnable to probes from the toolkits of Stability and Bifurcation theory.
4. Continuum Mechanics of complex media : Application of the continuum idealization to complex systems like suspensions, granules and neural tissues poses many challenges, both in the development of the field equations and in their analysis. I hope to have the opportunity to work on these problems in the near future.
Peer Reviewed Journal Publications:
17. J.R. Picardo, Radhakrishna T.G., S. Pushpavanam, Solutal Marangoni instability in layered two-phase flows, JOURNAL OF FLUID MECHANICS, Feb 2016. DOI: 10.1017/jfm.2016.135
16. J.R. Picardo, S. Pushpavanam, Low Dimensional Modeling of Transport and Reactions in Two-Phase Stratified Flow, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, Volume: 54, Issue: 42, Pages: 10481–10496, 2015 DOI: 10.1021/acs.iecr.5b01432
15. J.R. Picardo, P. Garg, S. Pushpavanam, Centrifugal instability of stratified two-phase flow in a curved channel, PHYSICS OF FLUIDS, Volume: 27, Article Number: 054106, 2015 DOI: 10.1063/1.4921631
14. J.R. Picardo, S. Pushpavanam, Laterally stratified flow in a curved microchannel, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, Volume: 75, Pages: 39–53, 2015 DOI: 10.1016/j.ijmultiphaseflow.2015.04.017
13. J.R. Picardo, Radhakrishna T.G., Anil B. Vir, Sundari Ramji, S. Pushpavanam,, Modeling Extraction in Microchannels with Stratified Flow: Channel Geometry, Flow Configuration and Marangoni Stresses, INDIAN CHEMICAL ENGINEER, Volume: 57, Issue: 3-4, Pages: 322-358, 2015 DOI: 10.1080/00194506.2015.1044027
12. J.R. Picardo, S. Pushpavanam, Understanding the Shape of Ant Craters: A Continuum Model, BULLETIN OF MATHEMATICAL BIOLOGY, Volume: 77, Issue: 3, Pages: 470–487, 2015 DOI: 10.1007/s11538-015-0063-y
11. P. Garg, J.R. Picardo, S. Pushpavanam, Chaotic mixing in a planar, curved channel using periodic slip, PHYSICS OF FLUIDS, Volume: 27, Article Number: 032004, 2015 DOI: 10.1016/10.1063/1.4915902
10. D. S. Pillai, J.R. Picardo, S. Pushpavanam, Shifting and breakup instabilities of squeezed elliptic jets, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, Volume: 67, Pages: 189–199, 2014 DOI: 10.1016/j.ijmultiphaseflow.2014.09.004
9. P. Garg, J.R. Picardo and S. Pushpavanam, Vertically stratified two-phase flow in a curved channel: Insights from a domain perturbation analysis, PHYSICS OF FLUIDS, Volume: 26, Article Numner: 073604, 2014 DOI: 10.1063/1.4889738
8. Anil B. Vir, A.S. Fabiyan, J.R. Picardo and S. Pushpavanam, Performance Comparison of Liquid-Liquid Extraction in Parallel Microflows, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, Volume: 53, Issue: 19, Pages: 8171–8181, 2014 DOI: 10.1021/ie4041803
7. J.R. Picardo, S. Pushpavanam, Core-annular two-phase flow in a gently curved circular channel, AIChE, Volume: 59, Issue: 12, Pages: 4871–4886, 2013 DOI: 10.1002/aic.14247
6. J.R. Picardo, S. Pushpavanam, On the conditional superiority of counter-current over co-current extraction in microchannels, MICROFLUIDICS AND NANOFLUIDICS, Volume: 15, Issue: 5, Pages: 701-713, 2013; DOI: 10.1007/s10404-013-1173-1
5. Anil B. Vir, Shekhar R. Kulkarni, J. R. Picardo, Avinash Sahu, S. Pushpavanam, Holdup characteristics of two-phase parallel microflows, MICROFLUIDICS AND NANOFLUIDICS, Volume: 16, Issue: 6, Pages: 1057–1067, 2013; DOI: 10.1007/s10404-013-1269-7
4. J.R. Picardo and J.E. Variyar, The Merkel equation revisited: A novel method to compute the packed height of a cooling tower. ENERGY CONVERSION AND MANAGEMENT, Volume: 57, 167–172, 2012; DOI: 10.1016/j.enconman.2011.12.016
3. J.R. Picardo and S. Ghosh. Establishing the efficacy of the cleansing action of Tropical Evergreens: A modeling analysis of Asia's largest lignite based power plant. ENVIRONMENT ASIA, 2011; 4(2): 1-8.
2. J.R. Picardo and S. Ghosh. Removal Mechanisms in a Tropical Boundary Layer: Quantification of Air Pollutant Removal Rates Around a Heavily Afforested Power Plant, AIR POLLUTION - NEW DEVELOPMENTS, ANCA MARIA MOLDOVEANU (Ed.), ISBN: 978-953-307-527-3, InTech, 2011.
1. J.R. Picardo and A.V.P.G. Gurumoorthy. Evaluation of MATCONT of MATLAB for constructing Bifurcation Diagrams of Chemical Process Systems. IUP JOURNAL OF CHEMICAL ENGINEERING, 2011; 3(3): 19-29.
Conference Papers/Posters:
11. J.R. Picardo, T.G. Radhakrishna, S. Pushpavanam, Solutal Marangoni Instability in Stratified Two-Phase Flows, 68th Annual Meeting of the APS DFD, Boston, Nov 22-24, 2015
10. J.R. Picardo, S. Pushpavanam, Low-Dimensional Modeling of Reactions and Transport in Stratified Microflows, 2015 AIChE Annual Meeting, Salt Lake, Utah, Nov 8-13, 2015.
9. J.R. Picardo, S. Pushpavanam, Slow-Manifold Order Reduction of Reaction-Diffusion Equations with Dirichlet Boundary Conditions, 2015 AIChE Annual Meeting, Salt Lake, Utah, Nov 8-13, 2015.
8. Anil B. Vir, J.R. Picardo, S. Pushpavanam, Influence of Marangoni Flow on Extraction and Reaction in Microchannels, ASME International Conference on Nanochannels, Microchannels and Minichannels (ICNMM-2014), Chicago, Illinois, USA, Aug. 3-7, 2014.
7. J.R. Picardo, P. Garg, S. Pushpavanam. Instability and Vortex Patterns in layered flow around a Bend. Dynamics Days Asia Pacific - 08 (DDAP 08), IIT Madras-IMSc, Chennai India. Jul 21-24, 2014.
6. P. Garg, J.R. Picardo, S. Pushpavanam. Chaotic Mixing in a Curved Channel with Slip surfaces. Dynamics Days Asia Pacific - 08 (DDAP 08), IIT Madras-IMSc, Chennai India. Jul 21-24, 2014.
5. J.R. Picardo, P. Garg, S. Pushpavanam. Stability of two phase Poiseuille flow between infinite cylinders. Bifurcations and Instabilities in Fluid Dynamics (BIFD 2013), Technion, Haifa, Israel. July 8-11, 2013
4. S.R. Kulkarni, A.B. Vir, J.R. Picardo, A. Sahu, S. Pushpavanam. Holdup characteristics of Parallel Multiphase flows in microchannels. Advances in Microfluidics and Nanofluidics (AMN-2013), University of Notre Dame, South Bend. May 23-26, 2013
3. J.R. Picardo, S. Pushpavanam. On the unobvious choice between co-current and counter-current extraction in microchannels. Mathematics in Chemical Kinetics and Engineering (MaCKiE 2013), IIT Madras, India.
2. C. R. S. Kumar, S. Ghosh, K. Sethia and J.R. Picardo. Bio-particle emission and distribution over slums in a tropical Indian metropolis. European Aerosol Conference 2011, U.K.
1. J.R. Picardo and S. Ghosh. Establishing the efficacy of the cleansing action of Tropical Evergreens: A modeling analysis of Asia's largest lignite based power plant. 1st Environment Asia International Conference, Thailand, 2011.
Workshops / Lectures Delivered:
1. Lecture on Confrontation with Chaos at the 135th Meeting of the Science Club, Chennai; held at IIT Madras on 14th July 2012.
2. Workshop on Fascinating Patterns in Nonlinear Dynamics conducted at VIT University (2010) in association with Prof. Anand V. P. Gurumoorthy, VIT University (Vellore) and Ms. Babita Verma, then BTech Student, VIT University.
3. Workshop on Application of MATLAB in Chemical Engineering Problem Solving conducted at VIT University (2010) in association with Prof. Jayasankar E. Variyar, VIT University (Chennai Campus) and Ms. Neha Jha, (then Final Year BTECH VIT University, now with British Oxygen Company).
Academic Work Experience:
I have had the opportunity to assist in the following courses as a part of my Assistantship duties:
1. Computational Lab for undergraduate chemical engineering students in second year. The lab included MATLAB and ASPEN (process simulator). The faculty in charge was Prof. Kannan.
2. Course on Singularity and Bifurcation Theory under the formal name of Steady State and Dynamic Modeling of Physico-chemical Systems. The lectures were delivered by Prof. S. Pushpavanam.
3. Course on Hydrodynamic Instabilities and Pattern Formation under the formal name of Multiphase Flow. The course instructor was Prof. S. Pushpavanam and my fellow TAs were Dipin S. Pillai and Anil B. Vir. I gave about eight of the lectures in the course, which are available online as part of NPTEL program as well as on YouTube.
About Me:
General Interests
Books were my first windows to worlds I shall never physically experience. Yet they remain as real to me as the bedroom in which I spent so many hours with my head between sheaves of old brown paper. Middle Earth and the War of the Ring is the greatest journey I have made as a reader. Aragon, son of Arathorn, Isildur's heir, wielder of Anduin, the King Returned is a Tolkien character very close to my heart. Anyone who has not read the Lord of the Rings by J.R.R. Tolkien- please read it for you are yet to experience one of the best results of the human Mind and Spirit.
Of course, I would never say no to a good movie and there is nothing like a session with an Age of Empires Campaign. I also enjoy writing, which you may have inferred if you have reached this far along my profile. I like to keep fit- this usually means regular runs and gyming sessions. While I can stomach almost anything, I have a fancy for Italian and naturally Goan fish curry ( I am a native of that popular small state).