Publications

1. Sarswati Shah, The Riemann Problem for the Flow Pattern in Deviated Pipes Carrying Isentropic Two‐Phase Flows, Studies in Applied Mathematics, 154, e70003, 2025. [link]
2. Sarswati Shah, and Gerardo Hernández Dueñas, Weakly Compressible Two-Layer Shallow-Water Flows Along Channels, Journal of Scientific Computing, 100, 61, 2024. [link]
3. Bipin Kumar Chaudhary, Randheer Singh, and Sarswati Shah, Delta shocks and vacuums in the Aw–Rascle model with anti van der Waals Chaplygin gas under the flux approximation, Physics of Fluids, 36, 016144, 2024. [link]
4. Sarswati Shah, Randheer Singh, Bipin Kumar Chaudhary, and Jasobanta Jena, The Riemann problem for real isothermal gases with dust particles, International Journal of Applied and Computational Mathematics, 9, 1-15, 2023. [link].
5. Sarswati Shah, Randheer Singh, and Jasobanta Jena, Interaction of acceleration wave with a blast wave in two-phase Chaplygin flow driven by source term, Acta Applicandae Mathematicae, 186, 2, 2023. [link]
6. Randheer Singh, Sarswati Shah, and Jasobanta Jena, On kinematics of one-dimensional radially symmetric shocks in non-ideal reacting gases, Mathematical Methods in the Applied Sciences, 47, 1735-1749, 2023. [link]
7. Sarswati Shah, Randheer Singh, and Bipin Kumar Chaudhary, Concentration and cavitation of Riemann solutions to two-phase Chaplygin flows under vanishing pressure and flux approximation, Communications in Nonlinear Science and Numerical Simulation, 118, 107065, 2023. [link]
8. Sarswati Shah, Randheer Singh, and Jasobanta Jena, Steepened wave in two-phase Chaplygin flows comprising a source term, Applied Mathematics and Computation, 413, 126656, 2022. [link]
9. Sarswati Shah, and Randheer Singh, Lie symmetries for analyzing interaction of a characteristic shock and a singular surface in a non-ideal reacting gas with dust particles, Mathematical Methods in the Applied Sciences, 44, 3804-3818 2020. [link]
10. Sarswati Shah, and Randheer Singh, Imploding shocks in real reacting gases with dust particles, Journal of Mathematical Physics, 61, 033506, 2020. [link]
11. Sarswati Shah, and Randheer Singh, Propagation of non-planar weak and strong shocks in a non-ideal relaxing gas, Ricerche di Matematica, 70, 371–393, 2019. [link]
12. Sarswati Shah, and Randheer Singh, Collision of a steepened wave with a blast wave in dusty real reacting gases, Physics of Fluids, 31, 076103, 2019. [link]
13. Sarswati Shah, and Randheer Singh, Evolution of singular surface and interaction with a strong shock in reacting polytropic gases using Lie group theory, International Journal of Non-Linear Mechanics, 116, 173-180, 2019. [link]

Conferences & Talks

Conferences & Workshops

• SIAM NWCS24: SIAM Conference on Nonlinear Waves and Coherent Structures, Lord Baltimore Hotel, Baltimore, MD, United States, June 24-27, 2024. (Talk: Path-Conservative Central Upwind Schemes for Weakly Compressible Two-Layer Shallow Water Flow)
• Workshop on Theoretical and Practical Perspectives in Geophysical Fluid Dynamics, International Center for Theoretical Sciences, Bengaluru, India, May 20-31, 2024. (Poster: Path-conservative central-upwind schemes for weakly compressible two-layer shallow water flow)
• Hot Topics: Recent Progress in Deterministic and Stochastic Fluid-Structure Interaction, Simons Laufer Mathematical Sciences Institute (MSRI), University of California, Berkeley, United States, Dec 04-08, 2023. (Attended)
• Workshop on Modern Applied and Computational Analysis, Institute for Computational & Experimental Research in Mathematics (ICERM), Brown University, United States, Jun 26-30, 2023. (Poster: Central-Upwind Schemes for Weakly Compressible Two-layer Shallow-Water Flows)
• ENOAN XXXI: Escuela Nacional de Optimización y Análisis Numérico, Instituto de Matemáticas UNAM Cuernavaca & Universidad Autónoma del Estado de Morelos, Morelos, México,(online) Jun 26-30, 2023. (Talk: Delta shock wave solution to the Riemann problem for two-phase generalized Chaplygin flows)
• FoCM 2023: Foundations of Computational Mathematics, Sorbonne University, Paris, France Jun 12-21, 2023. (Poster: Central-Upwind Schemes for Weakly Compressible Two-layer Shallow-Water Flows)
• Summer School: Horizons in Non-Linear PDEs, Ulm University, Ulm, Germany, Sep 26-30, 2022. (Talk: Weakly compressible two-layer shallow-water flows)
• MultiMat 2022: 10^th International Conference on Numerical Methods for Multi-Material Fluid Flow, Universität Zürich (Irchel Campus), Zürich, Switzerland, Aug 22-26, 2022. (Poster: Weakly compressible two-layer shallow-water flows in general channels)
• HYP 2022: XVIII International Conference on Hyperbolic Problems; Theory, Numerics, Applications, University of Málaga, Málaga, Spain Jun 20-24, 2022. (Talk: Weakly compressible two-layer shallow-water flows with friction and entrainment along channels)
• Annual meeting of the SIAM Mexico section, Universidad Autonoma de Coahuila, Saltillo, Coahuila, Mexico Jun 08-10, 2022. (Talk: Weakly compressible two-layer shallow-water flows in general channels)
• Workshop on Advances and Challenges in Hyperbolic Conservation Laws, Institute for Computational & Experimental Research in Mathematics (ICERM), Brown University, United States (online) May 17-21, 2021. (Attended)
• 48^th Annual Conference of Odisha Mathematical Society, Institute of Mathematics and Applications, Bhubaneswar, Odisha, India, Apr 10-11, 2021. (Talk: Evolution of singular surface in the drift flux equations of two-phase flows)
• Online Webinar on An Introductory Course on Fluid Dynamics, Department of Mathematics, CHRIST(Deemed to be University), Bangalore, India, Aug 17-20 & Aug 24-28, 2020. (Attended)
• 64^th Congress of ISTAM, Indian Institute of Technology Bhubaneswar, Odisha, India, Dec 09-12, 2019 (Talk: Propagation of shock wave in a non-ideal reacting gas)
• National Conference on Recent Trends in Mathematical Sciences, Department of Mathematics & Statistics, DDU Gorakhpur University, Gorakhpur, U.P., India, Nov 24-25, 2018. (Talk: Converging shocks on non-planar flow of reacting gas)
• 'Advanced Instructional School’ on “Differential Equations", School of Mathematics, University of Hyderabad, Hyderabad, India, Jun 04-23, 2018. (Attended)
• 'Science Academics Lecture Workshop’ on “Essence of Partial Differential Equation”, School of Basic Science, Indian Institute of Technology Mandi, H.P., India, Apr 02-04, 2018. (Attended)
• Research Scholar Seminar & Annual Conference of the Society of Mathematical Sciences, Department of Mathematics, University of Delhi, Delhi, India, May 01-02, 2017. (Attended)

Invited Talks

• Seminar Talk, TIFR - Centre for Applicable Mathematics, Bengaluru, India, June 06, 2024. (Talk: Theoretical modelling and numerical simulation of hyperbolic balance laws)
• Minisymposium, in the conference '56^th National Congress of the Mexican Mathematical Society', Universidad Autónoma de San Luis Potosí (UASLP), México, Oct 23-27, 2023. (Talk: Central-Upwind Schemes for Weakly Compressible Two-layer Shallow-Water Flows)
• Colloquium, Instituto de Matemáticas, Universidad Nacional Autónoma de México (UNAM), México, May 26, 2023. (Talk: Theoretical modelling and numerical simulation of hyperbolic balance laws)
• Colloquium, Facultad de Ingeniería, Universidad Autónoma de Querétaro (UAQ), México, Mar 09, 2023. (Talk: Models and methods for two-layer compressible fluid flows; gas-gas flows and liquid-liquid flows)
• Two lectures, in the workshop 'Numerical Analysis of Ordinary & Fractional Partial Differential Equations (NAOFPDE-2022)' sponsored by MPHEQIP Bhopal at the Department of Mathematics, Govt. Tilak P.G. College, Katni, India, Dec 27-31, 2022. (Talk: Introduction of Hyperbolic Partial Differential Equations and some of its example to real world application)

Research Visits

• One-week research visit
• Invited by: Prof. Jim Thomas
• TIFR - Centre for Applicable Mathematics, Bengaluru, Karnataka, India, June 03-07, 2024.

• Two-week research visit
• Invited by: Prof. M. Pascale Lelong
• NorthWest Research Associates (NWRA), Seattle, Washington, USA, Nov 07-19, 2022.

Skills