Research
One of the developer of DandeLiion:
DandeLiion is an ultra-fast solver for electrochemical models of planar lithium-ion cells and thermal-electrochemical models of three-dimensional composite pouch cells.
Research Interest
Computational solution of Models for Lithium-ion Batteries
Hamilton-Jacobi equations
Non-destructive testing of metals
Traffic flow models
Publications
Journal Articles
G. Wang, S. Sahu and Q. Liao. An Adaptive ANOVA Stochastic Galerkin Method for Partial Differential Equations with High-dimensional Random Inputs. Journal of Scientific Computing 98, 24 (2024). [DOI].
S. Sahu & J. M. Foster. A Continuum for lithium plating and dendrite formation in lithiumiIon batteries: formulation and validation against experiment, Journal of Energy Storage, volume 60, 2023, 106516 [DOI].
L. Daniels, S. Sahu, K. J. Sanders, G. R. Goward, J. M. Foster and B. Protas. Learning Optimal Forms of Constitutive Relations Characterizing Ion Intercalation from Data in Mathematical Models of Lithium-Ion Batteries. Journal of Physical Chemistry C 2023, 127, 35, 17508–17523 [DOI].
F. B. Planella, W. Ai, A. M. Boyce, A. Ghosh, I. Korotkin, S. Sahu, V. Sulzer, R. Timms, T. G. Tranter, M. Zyskin, S. J. Cooper, J. S. Edge, J. M. Foster, M. Marinescu, B. Wu, G. Richardson, A Continuum of Physics-Based Lithium-Ion Battery Models Reviewed, Progress in Energy, 4,4,45 p., 042003, 2022. [DOI] [arXiv].
J. M. Escalante, S. Sahu, J.M. Foster & B. Protas, On Uncertainty Quantification in the Parametrization of Newman-type Models of Lithium-ion Batteries. Journal of The Electrochemical Society, Volume 168, Number 11, 110519, 2021. [DOI] [arXiv]
I. Korotkin, S. Sahu, S. O’Kane, G. Richardson & J.M Foster, DandeLiion v1: An extremely fast solver for the Newman model of lithium-ion battery (dis)charge. Journal of The Electrochemical Society, Volume 168, Number 6, 060544, 2021. [DOI] [arXiv]
D.P. Bourne, A. J. Mulholland, S. Sahu & K.M.M. Tant. An inverse problem for Voronoi diagrams: A simplified model of non-destructive testing with ultrasonic arrays. Math Meth Appl Sci. 2020;1-19.
S. Sahu. High-order filtered schemes for first order time dependent linear and non-linear partial differential equations. Mathematics and Computers in Simulation Volume 147, 250-263, 2018.
E. Cristiani & S. Sahu. On the micro-to -macro limit for first-order traffic flow models on networks. Networks and Heterogeneous Media 11(3): 39 5-413, 2016.
S. Sahu. High-order filtered scheme for front propagation problems. Bulletin of the Brazilian Mathematical Society, New Series 47(2): 727-744, 2016.
O. Bokanowski, M. Falcone & S. Sahu. An Efficient Filtered Scheme for Some First Order Time-Dependent Hamilton-Jacobi Equations. SIAM Journal on Scientific Computing 38(1): A171-A195, 2016.
Conference proceedings
Sahu, S. (2018). Coupled scheme for linear and Hamilton-Jacobi-Bellman equations. 27 Jun 2018, Theory, Numerics and Applications of Hyperbolic Problems II: Aachen, Germany, August 2016. Klingenberg, C. & Westdickenberg, M. (eds.). Springer Nature, Vol. 237. p. 563-576 (Springer Proceedings in Mathematics & Statistics)
Chapter in Book
High order schemes for Hamilton-Jacobi-Bellman equations" Chapter in the volume Novel Directions in Optimization, Control and Games with Applications.", (M. S. Aronna, D. Kalise, D. Tonon) Lecture Notes in Mathematics, Springer.
Doctoral Thesis
Sahu, S. (2015). High-order and coupled schemes for Hamilton-Jacobi-Bellman equations.
PhD: Supervisor Prof. M. Falcone, Sapienza Universita di Roma Italy.
Selected video Talks
A continuum model for lithium-ion battery degradation (video), Faculty of Technology Research and Innovation June Conference 2023, University of Portsmouth
Mathematical models for Lithium-ion batteries (video) ,Faculty of Technology Research and Innovation Conference 2021, University of Portsmouth
DandeLiion: An extremely fast online solver for a thermally coupled electrochemical model of Li-ion battery (dis)charge (video) 19-30 April 2021 - Multiscale Modelling Showcase Workshop.
Invited talk on Filtered Scheme for Some First Order Time-Dependent Hamilton-Jacobi Equations 2018 (video) Center for Nonlinear Analysis, Department of Mathematical Sciences, MCS, Carnegie Mellon University, United States.
Teaching
Undergraduate courses (2023-2024)
Nonlinear Dynamics
Statistical learning
Project
BMaths : Equivalent circuit models for lithium-ion batteries
MMaths: Physics based models for lithium-ion batteries
Undergraduate courses
Lectures: Numerical Analysis II (Epiphany term and Easter term 2015-2016)
Programming Practical Lab ( 2015-2016, 2016-2017, 2017-2018)
Practicals for Numerical Analysis (2015-2016, 2016-2017, 2017-2018)
Tutorials and Practicals for Numerical Analysis (2015-2016, 2016-2017, 2017-2018)
Postgraduate Courses
Projects
Finite Difference method for hyperbolic conservation laws (2019)