Sourabh Bhat
I am experienced in the development of software tools and application of computational models in the field of Mechanical and Aerospace Engineering.
I have expertise in the following subjects:
- Fluid mechanics and heat transfer
- Grid generation and numerical analysis
- Visualization of fluid flow and physical processes
- Parallel computing / HPC
- Software architecture and project management
- Computational Fluid Dynamics (CFD)
- Computed Aided Engineering (CAE)
- Geothermal energy modeling
- Customized engineering software UI/UX
- Mathematical model development
- Numerical solutions to complex mathematical models
- Non-Newtonian fluid modeling
- Oil, gas and geothermal industry
- Well integrity design and cement placement modeling
I have extensive experience in research and development in Oil & Gas, Geothermal and Automotive industry.
Experience
Scientific Computing & Mathematical Modeling Expert
I work on computational modeling of energy production in geothermal systems. I also work on development of engineering software in the field of oil & gas industry ranging from non-Newtonian fluid mechanics of cement placement to well integrity study over the lifetime of the production wells.
Post Doctoral Researcher
Worked on mesh adaptation and model order reduction for Digital twins in the manufacturing pillar at the European Union's Horizon 2020 eFlows4HPC project. The work is published in Computer Methods in Applied Mechanics and Engineering.[cmame-2025] (preprint)
Collaboration with researchers and engineers from Spain (CIMNE and BSC), Italy (SISSA), France (INRIA) etc. and our industrial partners from Siemens.
Project Scientist
Studied the dynamics of flow of SARS-Cov-2 virus through respiratory
droplets in a conference room during meetings.
As recognized by WHO, physical meetings
are a potential vector for spread of respiratory viruses. Using fluid dynamics studies we
numerically studied meeting scenarios in closed conference rooms
using large scale simulations. The research is published in
Physics of Fluids [pof-2022].
Integrated RRTM radiation modules in NICAM - a high resolution weather forecasting software.
The Non-hydrostatic Icosahedral Atmospheric Model (NICAM) software is written in modern
Fortran language, designed to run on
high-performance computing clusters, using MPI and OpenACC.
NICAM is a global forecasting system with a capability of sub-kilometer resolution.
I was a part of the organizing committee of Workshop on AI/ML techniques for the Weather and Climate applications. The lecture recordings of this workshop are available on: YouTube. I also delivered a lecture on Google Colab and Python programming in this workshop.
Teaching Assistant (During PhD)
Learned the process of effective teaching from the best teachers in the country. Assisted the professor by creating animations, simulations and other teaching aids for interactive teaching. For example, here is an interactive animation built using Processing to demonstrate sound wave coalesce to form shocks in stationary and flowing fluids. Learnt the art of question paper preparation and grading such that the paper provides a fair chance to students of different caliber.
Senior Assistant Professor
Taught many courses related to Aerospace engineering and CFD, to BTech and MTech students. Provided guidance to many groups of students for projects, seminars and MTech thesis. Conducted experimental practicals for student groups using wind tunnels. Worked in organizing of AeSI national conference.
Engineer
Worked on design and analysis of automobile and diesel generator engines using tools like ProE and Ansys Fluent. Worked on many individual and team projects. One of the projects went on for a patent, for which the team received an innovation award from the company.
Assistant Manager
Worked on design and development of heavy commercial vehicle chassis and tipper body. Worked on transfer of projects from Zahirabad to Pune. Worked on replication of older design drawings and CAD models.
Education
Doctorate of Philosophy (PhD)
The thesis makes two important contributions to the field of multiphase flow analysis. The first contribution is the Harten-Lax-van Leer contact preserving Riemann solver for two-phase flows. The second contribution is the development of an extremely accurate and efficient interface reconstruction technique which works with a Riemann solver. The two contributions together produce very efficient and accurate solutions to problems involving two-phase flows.
Publications: [caf-2022, jcp-2019–fmfp-2014
].
The CFDSolver code
was also initiated as a part of my PhD work.
Major courses studied: High Performance Scientific Computing, Turbulence and Combustion Modeling, Gas Dynamics, Computational Fluid Dynamics, Computational Heat Transfer.
Master of Technology (MTech)
The WENO class of methods are extremely successful in accurately solving PDEs with potential discontinuities, such as material discontinuities or shocks. In this thesis the method was studied and implemented for solving high-speed gas dynamics problems.
Major courses studied: Aerodynamics of Aerospace Vehicles, Optimization for Engineering Design, Computational Fluid Dynamics, Gas Dynamics, Hypersonic Flow Theory, Aircraft Design, Communication and Presentation Skills, Information Systems.
Bachelor of Engineering (BE)
Major courses studied: Finite Element Methods, Automobile Engineering, Manufacturing Technology, Refrigeration and Air Conditioning, Machine Design, Operations Management, Theory of Machines, Heat and Mass Transfer, Manufacturing Technology, Numerical Techniques and Computer Programming, Applied Thermodynamics, Engineering Drawing.
Skills
- I have contributed to areas of teaching, research and technology in:
-
- Computational Fluid Dynamics (CFD)
- Compressible Fluid Mechanics (Gas Dynamics)
- Computational methods for Multiphase Flows
- Heat and Mass Transfer
- Thermodynamics
- Non-Newtonian Fluid Mechanics
- Grid Generation for Numerical Analysis
- Computer Graphics and Flow Visualization
- Parallel Computing
- Numerical Methods and Computer Programming
- Optimization for Engineering Design
- I love creating tools and animations using Processing, Java, JavaFX, Python etc.
- I love interacting with people and guiding innovative projects.
- I love working on problems referring to real life situations and exploring new questions.
- Java, Python, C, C++, Fortran
- HTML, Javascript, CSS, Bootstrap
- Intellij IDEA, VS Code, Eclipse, NetBeans
- LaTeX, BibTeX, LyX
- Ansys Fluent
- Paraview, Tecplot
- Maple, Maxima
- Catia, ProE, Solidworks
- Blender, Inkscape, Gimp, Kdenlive
- Stage handling and presentation (Anchoring at various occasions at IITB, handled large number of students during teaching)
- Managing and organizing events (Part of organizing team for AeSI conference at UPES)
- Team work (Worked in Yogastha IITB, worked in various team project groups at M&M and Cummins)
- Design and innovation (Worked on design of automotive products at M&M and Cummins, worked on website design and management of Yogastha's website, developed a web based app for daily fitness)
- Task automation (Live telecast of IDY with multiple automated cameras switching)
-
Reading and writing skills:
- Referred to enormous amount of technical papers and wrote many conference and journal papers during PhD
- In process of writing a book on programming CFD available online
Publications
- Bhat S. P., Barral N. and Ricchiuto M., "Error-based efficient parameter space partitioning for mesh adaptation and local reduced order models", Computer Methods in Applied Mechanics and Engineering, 435, 117649, (2025). https://doi.org/10.1016/j.cma.2024.117649
- Bhat S. P. and Mandal J. C., "An improved HLLC-type solver for incompressible two-phase fluid flows", Computers & Fluids, 244, 105570, (2022). https://doi.org/10.1016/j.compfluid.2022.105570
- Bhat S. P., Kumar B. V. R., et.al., "Modeling and simulation of the potential indoor airborne transmission of SARS-CoV-2 virus through respiratory droplets", Physics of Fluids, 34(3), 031909, (2022). https://doi.org/10.1063/5.0085495
- Bhat, Sourabh and Mandal, J.C., "Modified HLLC-VOF solver for incompressible two-phase fluid flows", arXiv:1911.11234 [physics.comp-ph]
- Bhat, Sourabh and Mandal, J.C., "Contact preserving Riemann solver for incompressible two-phase flows", Journal of Computational Physics 379 (2019), pp. 173-191, doi.org/10.1016/j.jcp.2018.10.039
- Bhat S P, Parameswaran S, Mandal J C, "On the order of accuracy analysis of SDWLS method", ICTACEM 2017, December 2017, IIT Kharagpur, India.
- Bhat S P, Mandal J C, "Artificial Compressibility Based Method for Two-phase Surface Tension Dominated Flows", Annual CFD Symposium 2017, August 2017, NAL Bangalore, India.
- Bhat S P, Mandal J C, "A Novel HLLC-Type Riemann Solver for Two-Phase Incompressible Flows", Proceedings of 6th International & 43rd National Conference on Fluid Mechanics and Fluid Power, December 2016, Allahabad, India.
- Bhat S P, Mandal J C, "A novel reinitialization technique to conserve mass and enhance accuracy in VOF method", Proceedings of 4th International Conference on Computational Methods for Thermal Problems, Issue 217349, July 6-8, 2016, Georgia Tech, Atlanta, USA.
- Mandal J C, Parsai A, Parameswaran S, Bhat S P, "A novel volume of fluid method for interface tracking", 5th International and 41st National Conference on Fluid Mechanics and Fluid Power, December 12-14, 2014, Kanpur, India.
- Bhat S., Guven U., Yadav R., Sundarraj K., Sebastian L., Velidi G., "Effect of nose cavity on heat transfer rates to the surface of an aeroshell descending through the Martian atmosphere", Proceedings of the International Astronautical Congress, Naples, Italy, October 2012, IAC, 2, pp. 1430-1435.
- Sundarraj K., Sebastian L., Yadav R., Bhat S., Guven U., Velidi G., "Effect of nose cavity on the heat fluxes to reentry vehicle in titan's atmosphere", Proceedings of the International Astronautical Congress, Naples, Italy, October 2012, IAC, 3, pp. 1782-1789.
- Bhat S P, Sullerey R K, "An Assessment of Turbulence Models for S-Duct Diffusers With Flow Control", ASME 2013 Gas Turbine India Conference, Bangalore, India :V001T01A005. doi:10.1115/GTINDIA2013-3566.
- Sullerey R K, Bhat S P, "Numerical Analysis of Flow in S-Duct Diffusers With and Without Flow Control", ASME 2012 Gas Turbine India Conference, Mumbai, India :79-84. doi:10.1115/GTINDIA2012-9541.
Interests
- When I am not doing research, I involve myself in many outdoor activities such as inline-skating, swimming and hiking.
- Yoga, Pranayama and Meditation are my go to activities to rejuvenate myself and when I am in need of an inspiration or new ideas.
- When confined to indoors, I love reading books for personal development and spiritual growth.
- I spend a lot of my free time in developing open source resources available at my github page. I simply love programming tools and sharing them with others. GitHub is such a wonderful medium for that!
- Currently, I am working on solving the interesting problems from the book Compressible Fluid Flow by Patrick H. Oosthuizen and William E. Carscallen, which are published here. Currently I am giving out the solutions only to students and teachers after filling a form at the link.
- I have also started writing blogs. I will be writing about CFD tools, Compressible fluid flows and Numerical methods.
Awards & Certifications
- Online certified User Experience Design course for software application interfaces.
- Online certified Computational Neuroscience course.
- Top 10 (third rank) out of thousands of participants in national level High-Performance Computing (HPC) course under National Super-computing Mission.
- Innovation award at Cummins for a project (patent filed by Cummins US9470177B2)
- Won Boeing award for best academic performance at IIT Bombay during MTech
- Won junkyard wars competition twice at college level during BE
- Won 1st place in programming competition at a college level during BE
- Won 2nd place in debugging competition at a college level during BE
