Santu Das

@iasst.gov.in

Associate Professor, Mathematical and Computational Sciences, Physical Sciences Division, Institute of Advanced Study in Science and Technnology Guwahati, India 781035
Associate Professor

Santu Das
He is working as an Assisociate Professor I in Mathematical and Computational Sciences under the Physical Sciences Division at the Institute of Advanced Study in Science and Technology, Guwahati, India. Prior to that, he worked as an Assistant Professor in Mathematics at the Indian Institute of Information Technology Bhagalpur (July 2018–June 2019) and at SRM University AP–Amaravati (July 2017–May 2018) and was an Institute Postdoctoral Fellow in the Department of Ocean Engineering and Naval Architecture, Indian Institute of Technology Kharagpur, during February 2015 to July 2017. He received his PhD (September 2014) in Mathematics and Master of Science (May 2009) in Mathematics and Computing from the Indian Institute of Technology, Guwahati. His research area includes tsunami modelling using acoustic-gravity waves, wave-structure interaction problems, flow through porous, poroelastic, and viscoelastic media, hydroelasticity, wave blocking, and analogue gravity. He is also involved in

EDUCATION

2024 - Present: Associate Professor, Institute of Advanced Study in Science and Technology,Kamrup
2019 - 2024: Assistant Professor. Institute of Advanced Study in Science and Technology,Kamrup
2018 - 2019: Assistant Professor, Indian Institute of Information Technology, Bhagalpur,Bhagalpur
2017 - 2018: Assistant Professor, SRM University-AP, Amaravati,Guntur
2015 - 2017: Post-Doctoral Fellow, Indian Institute of Technology Kharagpur, India
2009 - 2015: PhD (Mathematics), Department of Mathematics, Indian Institute of Technology Guwahati, India
2007 - 2009: MSc (Mathematics and Computing), Department of Mathematics, Indian Institute of Technology Guwahati, India
2004 - 2007: BSc (Mathematics hons), University of Calcutta, India

RESEARCH, TEACHING, or OTHER INTERESTS

Applied Mathematics, Ocean Engineering, Modeling and Simulation, Computational Theory and Mathematics
45

Scopus Publications

717

Scholar Citations

15

Scholar h-index

21

Scholar i10-index

Scopus Publications

RECENT SCHOLAR PUBLICATIONS

  • Scattering of internal pressure waves by an underwater step in a compressible ocean
    R Pethiyagoda, S Das, B Wilks, MH Meylan
    41st International Workshop on Water Waves and Floating Bodies , 2026
    2026
  • The evolution of CFD simulation models on Wave Energy Converter (WEC)
    S Goswami, S Das
    Advanced Computational and Mathematical Techniques for Wave Energy Converter … , 2026
    2026
  • A generalized inner product-based wave scattering from an underwater source in a compressible ocean
    R Pethiyagoda, S Das, B Wilks, MH Meylan
    Journal of Fluid Mechanics 1032, A28 , 2026
    2026
  • Time-domain acoustic-gravity wave propagation in a stratified ocean: Impact of elastic ocean floor
    IH Ahmed, S Das, MH Meylan
    European Journal of Mechanics-B/Fluids 119, 204525 , 2026
    2026
  • Time-dependent water wave scattering by a bottom-mounted porous compound cylinder fitted with an annular porous lid
    S Saha, SN Bora, S Das
    Waves in random and complex media 36 (2), 1989–2010 , 2026
    2026
    Citations: 7
  • Wave dissipation mechanism of viscous ocean water waves influenced by soft ocean bed
    G Gogoi, S Das
    Ocean Engineering 345, 123524 , 2026
    2026
  • Improving Indian Summer Monsoon Rainfall Prediction using Deep Learning up to two years in advance
    D Sharma, S Das, D Chakraborty, A Mitra, BN Goswami
    Quarterly Journal of the Royal Meteorological Society 152 (Part A), e70023 , 2026
    2026
    Citations: 3
  • Flexural Gravity Waves: The Mathematical Theory and Applications
    T Sahoo, MH Meylan, Y Stepanyants, S Boral, S Das
    CRC Press , 2025
    2025
    Citations: 1
  • Time-domain pressure and surface wave propagation over generic topography due to sea floor motion
    R Pethiyagoda, S Das, MH Meylan
    arXiv preprint arXiv:2509.23377 , 2025
    2025
    Citations: 1
  • A novel generalized inner product-based wave scattering from an underwater source in a compressible ocean
    R Pethiyagoda, S Das, B Wilks, MH Meylan
    arXiv preprint arXiv:2509.19196 , 2025
    2025
    Citations: 1
  • Correlation of Specific Addictions with Cancer Sites Identified among Patients in Northeast India
    D Deka, MP Sarma, S Das, M Baruah, I Longkumer, G Acharjee, ...
    Scientific Reports 15, 27598 , 2025
    2025
    Citations: 3
  • Nonlinear dynamical analysis of a fractional-order El Niño Southern Oscillation system
    AD Mahapatra, AJ Kashyap, G Choudhury, S Das, HK Sarmah
    The European Physical Journal Plus 140, 704 , 2025
    2025
  • Far-field surface wave and pressure in a compressible ocean induced by the ocean floor's sinusoidal vertical movement
    R Das, S Das
    Physics of Fluids 37 (7), 076651 , 2025
    2025
  • Damping of ocean waves by a porous disk submerged in a two-layer fluid
    S Saha, SN Bora, S Das
    European Journal of Mechanics-B/Fluids 113, 204263 , 2025
    2025
    Citations: 1
  • Viscoelastic ocean floor influences the surface wave dissipation: A new approach
    G Gogoi, S Das
    Applied Mathematical Modelling 146, 116168 , 2025
    2025
    Citations: 1
  • Time-domain acoustic-gravity wave propagation in a two-layer ocean
    IH Ahmed, S Das, MH Meylan
    Physics of Fluids 37 (6), 066613 , 2025
    2025
    Citations: 1
  • Seasonal prediction of Indian summer monsoon extreme rainfall frequency
    D Sahrma, S Das, BN Goswami
    npj Climate and Atmospheric Science 8, 141 , 2025
    2025
    Citations: 2
  • Flexural-gravity wave dissipation under strong compression and ocean current near blocking point
    S Das
    Waves in Random and Complex Media 35 (1), 1571-1595 , 2025
    2025
    Citations: 9
  • Atmospheric pressure-driven surface wave propagation in a compressible ocean including static compression
    R Pethiyagoda, S Das, MH Meylan
    Wave Motion 134, 103468 , 2025
    2025
    Citations: 8
  • Evolution of arbitrary temporal ocean floor motion-induced surface waves over a trench
    R Pethiyagoda, S Das, MH Meylan
    Physics of Fluids 36 (12), 126606 , 2024
    2024
    Citations: 4

MOST CITED SCHOLAR PUBLICATIONS

  • Dynamics of flexural gravity waves: from sea ice to Hawking radiation and analogue gravity
    S Das, T Sahoo, MH Meylan
    Proceedings of the Royal Society A: Mathematical, Physical and Engineering … , 2018
    2018
    Citations: 109
  • Flexural-gravity wave motion in the presence of shear current: Wave blocking and negative energy waves
    S Das, P Kar, T Sahoo, MH Meylan
    Physics of Fluids 30 (10), 106606 , 2018
    2018
    Citations: 70
  • Flexural-gravity wave dynamics in two-layer fluid: blocking and dead water analogue
    S Das, T Sahoo, MH Meylan
    Journal of Fluid Mechanics 854, 121-145 , 2018
    2018
    Citations: 61
  • Oblique water wave damping by two submerged thin vertical porous plates of different heights
    S Das, SN Bora
    Computational and Applied Mathematics 37 (3), 3759-3779 , 2018
    2018
    Citations: 41
  • Reflection of oblique ocean water waves by a vertical rectangular porous structure placed on an elevated horizontal bottom
    S Das, SN Bora
    Ocean Engineering 82, 135-143 , 2014
    2014
    Citations: 41
  • Scattering of flexural-gravity waves by a crack in a floating ice sheet due to mode conversion during blocking
    SC Barman, S Das, T Sahoo, MH Meylan
    Journal of Fluid Mechanics 916, A11 , 2021
    2021
    Citations: 39
  • Reflection of oblique ocean water waves by a vertical porous structure placed on a multi-step impermeable bottom
    S Das, SN Bora
    Applied Ocean Research 47, 373-385 , 2014
    2014
    Citations: 36
  • Variability and predictability of the Northeast India summer monsoon rainfall
    D Sharma, S Das, BN Goswami
    International Journal of Climatology 43 (11), 5248-5268 , 2023
    2023
    Citations: 23
  • Time-dependent water wave scattering by a marine structure consisting of an array of compound porous cylinders
    SN Bora, S Das, MH Meylan, S Saha, S Zheng
    Physics of Fluids 35 (7), 077103 , 2023
    2023
    Citations: 22
  • Time-domain wave response of a compressible ocean due to an arbitrary ocean bottom motion
    S Das, MH Meylan
    Applied Mathematical Modelling 118, 832-852 , 2023
    2023
    Citations: 21
  • Damping of oblique ocean waves by a vertical porous structure placed on a multi-step bottom
    S Das, SN Bora
    Journal of Marine Science and Application 13 (4), 362-376 , 2014
    2014
    Citations: 21
  • Effect of static compression on tsunami waves: Two-dimensional solution
    S Das, MH Meylan
    Physics of Fluids 35 (6), 066603 , 2023
    2023
    Citations: 17
  • Hydroelastic analysis of very large floating structure over viscoelastic bed
    S Das, T Sahoo
    Meccanica 52 (8), 1871-1887 , 2017
    2017
    Citations: 17
  • Wave damping by a vertical porous structure placed near and away from a rigid vertical wall
    S Das, SN Bora
    Geophysical & Astrophysical Fluid Dynamics 108 (2), 147-167 , 2014
    2014
    Citations: 17
  • Flexural gravity wave motion over poroelastic bed
    S Das, H Behera, T Sahoo
    Wave Motion 63, 135-148 , 2016
    2016
    Citations: 16
  • Wave propagation through mangrove forests in the presence of a viscoelastic bed
    H Behera, S Das, T Sahoo
    Wave motion 78, 162-175 , 2018
    2018
    Citations: 15
  • Blocking dynamics of capillary-gravity waves in a two-layer fluid in the presence of surface and interfacial tensions
    S Boral, S Das, T Sahoo, MH Meylan
    Meccanica 57 (6), 1307-1335 , 2022
    2022
    Citations: 13
  • Scattering of flexural-gravity waves due to a crack in a floating ice sheet in a two-layer fluid in the context of blocking dynamics
    SC Barman, S Das, T Sahoo, MH Meylan
    Physics of Fluids 34 (5) , 2022
    2022
    Citations: 13
  • An investigation of the properties of flexural-gravity wave propagation in a coupled submerged and floating plate system
    S Das, T Sahoo, MH Meylan
    European Journal of Mechanics-B/Fluids 82, 123-134 , 2020
    2020
    Citations: 13
  • Mechanism for high “potential skill” of Indian summer monsoon rainfall prediction up to two years in advance
    D Sharma, S Das, SK Saha, BN Goswami
    Quarterly Journal of the Royal Meteorological Society 148 (749), 3591-3603 , 2022
    2022
    Citations: 11