Latest Update:

1. One of the collaborative research got published in the prestigeous Journal of Fluid Mechanics.
2. One of the publications emanating from the SIRE Fellowship and published in the prestigious journal Physics of Fluids got recognized as the Editor’s pick.
3. I have received the prestigious SERB International Research Experience (SIRE) Fellowship for the year 2023-2024 to visit the University of Newcastle (UoN), AUSTRALIA, for 6 months and carry out collaborative research work with Prof. Michael H. Meylan (School of Information and Physical Sciences, UoN).
4. One of our collaborative works was published in the Times of India. It is also highlighted on the DST website. The original paper was published in the Quarterly Journal of the Royal Meteorological Society.

Education

1. Ph.D. in Mathematics, IIT Guwahati, 2009-2014.
2. MSc in Mathematics and Computing, IIT Guwahati, 2007-2009.
3. BSc in Mathematics, University of Calcutta, 2004-2007.

Professional Life

1. Associate Professor I in Mathematical and Computational Sciences (Physical Sciences Division), IASST Guwahati, July 2024- till now.
2. Assistant Professor II in Mathematical and Computational Sciences (Physical Sciences Division), IASST Guwahati, July 2019-June 2024.
3. Assistant Professor in Mathematics, IIIT Bhagalpur, July 2018-June 2019.
4. Assistant Professor in Mathematics, SRM University AP – Amaravati, July 2017-May 2018.
5. Institute Postdoctoral Fellow, IIT Kharagpur, Feb 2015-July 2017.

Membership in Professional Bodies

1. Life member of ISTAM (2019-present).
2. Life member of the Indian Mathematical Society (2022- present).

Academic Visits

1. The University of Newcastle, Callaghan, NSW 2308, Australia, in Sept 2023 - March 2024.
2. Isaac Newton Institute for Mathematical Sciences, Cambridge CB3 0EH, United Kingdom, in January 2023.
3. The University of Newcastle, Callaghan, NSW 2308, Australia, in November 2022.
4. The University of Newcastle, Callaghan, NSW 2308, Australia, in April 2019.
5. International Workshop on Water Waves and Floating Bodies (IWWWFB), Guidel-Plage, France, in April 2018.
6. Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, United States, in October 2017.
7. Seoul National University, Seoul, South Korea, in June 2017.

Invited Talk:

1. Submarine earthquake-induced surface wave propagation over a step in a compressible ocean, National Conference on Theoretical and Numerical Approaches in Water Wave Mechanics, 16th and 17th, December 2024, VIT Vellore, Vellore 632014, India.
2. Introduction to wave blocking, 8 June 2023, International Workshop on MCMSE (02-13 June 2023), IIT Ropar, Rupnagar - 140001, India.
3. Ocean surface waves are influenced by slight water compressibility, 29 December 2022, Symposium on Water Wave Mechanics in the 88th Annual Conference of the Indian Mathematical Society (IMS), BIT Mesra, Ranchi, Jharkhand - 835215.
4. Introduction to water compressibility and its effect on hydroelastic wave, 16 December 2021, in the short-term course Non-linear problems in hydroelasticity (13-17 December 2021) organized by Dept. of Ocean Engineering and Naval Architecture, IIT Kharagpur, Kharagpur - 721302, India
5. Acoustic-gravity wave (AGW) propagation under sea-ice in an ocean having elastic floor, 14th October 2020, in minisymposium on Mathematical Aspects of Water Waves and Applications, Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati-781039, India.
6. The Genesis of Negative Energy Waves in Hydrodynamics, in Alumni Symposium on Mathematics and Computing (ASMC 2020), 19th September 2020, Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati-781039, India.
7. Very Large Floating Structure (VLFS) in Oceans - It's History, Present Status and Significance in Future, in ATAL Faculty Development Programme on Mathematical Modelling of Problems in Coastal and Offshore Engineering,16th September 2020, Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati-781039, India.
8. Blocking dynamics of flexural-gravity modes, workshop on Time domain analysis on hydroelasticity problems, 9-13 December 2019, Department of Ocean Engineering and Naval Architecture, IIT Kharagpur, Kharagpur – 721302, India
9. Few spectacular aspects of flexural-gravity waves: from sea-ice to analogue gravity, and deadwater, 18th June 2019, Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati-781039, India.
10. Some remarkable phenomena in flexural gravity waves, 22nd June 2017, Department of Naval Architecture and Ocean Engineering, Seoul National University, Seoul-08826, South Korea.
11. Flexural gravity waves in marine science and technology, Alumnus Reflection, 21st October 2016, Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati-781039, India.

Workshop/Seminar/Programs attended:

1. National Conference on Theoretical and Numerical Approaches in Water Wave Mechanics, 16th and 17th, December 2024, VIT Vellore, Vellore 632014, India.
2. NSW ANZIAM 2023 Annual Meeting, 30 November to 1 December 2023, University of Wollongong, New South Wales, Australia
3. Workshop  MWSW05 (Winter School), Isaac Newton Institute for Mathematical Sciences, Cambridge, UK (http://www.newton.ac.uk/event/MWSW05),
   09-13 January 2023.
4. 88th Annual Conference of the Indian Mathematical Society (IMS), BIT Mesra, Ranchi, Jharkhand - 835215, 27-30 December 2022.
5. 67th Congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM 2020), Indian Institute of Technology Mandi, Himachal Pradesh 175005, India, 9-13 December 2022.
6. 2nd International Workshop on Numerical and Analytical Techniques in Engineering Problems-2022, Department of Mathematics, SRM Institute of Science and Technology, Kattankulathur - 603203, India during 19-21 January 2022.
7. 2nd International Workshop in the Mathematics of Sea Ice and Ice Sheets, 10-12 November 2021, University of Southern Queensland, QLD 4350 Australia.
8. 36th International Workshop on Water Waves and Floating Bodies (IWWWFB-2021), Seoul National University (South Korea), April 25-28, 2021.
9. 65th Congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM 2020), GITAM Deemed to be University, Hyderabad campus, Telangana 502329, India, 9-12 December 2020.
10. Workshop on Mathematics of Sea Ice and Ice Sheets (MoSSI), CARMA - University of Newcastle, Newcastle, NSW - 2308, Australia, 9-12th November 2020 (online mode).
11. Minisymposium on Mathematical Aspects of Water Waves and Applications, Department of Mathematics, IIT Ropar (in association with IIT Guwahati), 12-15th October 2020 (online mode).
12. International Conference on Advances in Differential Equations and Numerical Analysis - 2020 (ADENA 2020), Department of mathematics, IIT Guwahati, India, 12-15th October 2020 (online mode).
13. Time domain analysis on hydroelasticity problems, 9-13 December 2019, Department of Ocean Engineering and Naval Architecture, IIT Kharagpur, Kharagpur – 721302, India,
14. Computational Methods in Hydroelasticity, GIAN course, IIT Kharagpur, India, 12-16th December 2016.
15. National Program on Differential Equations: Theory, Computation and Applications- Advance Level Training Programme, IIT Bombay, India, 10-30th June 2012.
16. Water Waves and Floating Bodies, OASTC, IIT Kharagpur, India, 25-26th November 2011.

Scholarships:

1. SERB International Research Experience (SIRE) Fellowship– Sept 2023 - March 2024.
2. CSIR-SRF: Jan 2012-Sept 2014
3. CSIR-JRF: Jan 2010-Dec 2011
4. Institute Scholarship: GATE (IITG)– July 2009-Dec 2009
5. Summer Research Fellow: Indian Academy of Sciences – May 2008-July 2008

Conference papers (contributory):

1. Atmospheric pressure-driven surface wave propagation in the compressible ocean including static compression, NSW ANZIAM 2023 Annual Meeting, 30 Nov-1 Dec 2023, University of Wollongong, New South Wales 2500, Australia.
2. Surface wave profile due to oscillatory motion of an asymmetric block of ocean floor, 67th Congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM 2022), Indian Institute of Technology Mandi, 14-16 December 2022, Himachal Pradesh 175005, India.
3. Time-domain simulation of flexural-gravity waves in a compressed sea-ice subject to 2D current over a stratified ocean, 67th Congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM 2022), 14-16 December 2022, Indian Institute of Technology Mandi,  Himachal Pradesh 175005, India.
4. Sea ice and interfacial deflection within the frequency band of blocking in a stratified ocean, 2nd International Workshop in the Mathematics of Sea Ice and Ice Sheets, 10-12 November 2021, University of Southern Queensland, QLD 4350 Australia.
5. Root finding method for the dispersion relation of waves in compressed and viscous sea ice, 65th Congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM 2020), GITAM Deemed to be University, Hyderabad campus, Telangana 502329, India.
6. The effect of compressed ice-shelves on acoustic-gravity wave (AGW) propagation in an ocean having elastic floor, Workshop on Mathematics of Sea Ice and Ice Sheets (MoSSI), 9-12th November 2020, CARMA - University of Newcastle, Newcastle, NSW - 2308, Australia (Online mode).
7. Blocking dynamics of Capillary gravity waves in two-layer fluid, ANZIAM 2020, 2-6 Feb 2020, The Crowne Plaza, Hunter Valley, organised by Macquarie University, Sydney, NSW 2109, Australia.
8. Effect of a submerged plate on flexural-gravity wave blocking, 34th International Workshop on Water Waves and Floating Bodies (IWWWFB-2019), 7-10th April 2019, Noah’s on the Beach, Newcastle, NSW 2300, Australia.
9. Flexural gravity wave blocking in submerged and floating plate system, 63rd Congress of the Indian Society of Theoretical and Applied Mechanics, 20-23rd December 2018, School of Engineering, Dayananda Sagar University, Bangalore, India.
10. Flexural gravity waves in a two-layer fluid, 33rd International Workshop on Water Waves and Floating Bodies (IWWWFB – 2018), 4-7th April 2018, Ensta-Bretagne, Guidel-Plages 56520, France.
11. Flexural gravity wave motion in two-layer fluid: blocking and dead water analogue, 12th SIAM: East Asian Section Conference 2017 (EASIAM 2017), 22-25th June 2017, Department of Mathematical Sciences, Seoul National University, Seoul-08826, South Korea.
12. Flexural gravity wave motion over viscoelastic bed, National Conference on Emerging Trends in Physics of Fluids and Solids (NCETPFS2016), 3-4th March 2016, Department of Mathematics, Jadavpur University, Kolkata-700032, India.
13. Scattering of water waves by a vertical porous structure placed against a rigid vertical wall, 58th Congress of the Indian Society of Theoretical and Applied Mechanics, 18-21st December 2013, Bengal Engineering and Science University, Shibpur, Howrah- 711103, West Bengal, India.
14. Wave damping by a vertical porous structure placed away from a rigid vertical wall, Recent Trends in Mathematics and its Applications (RTMA-2013), 7-8th October 2013, Digboi College, Digboi, Tinsukia, Assam- 786171, India.
15. Reflection of ocean water waves by a vertical rectangular porous structure over an elevated horizontal bottom, 57th Congress of the Indian Society of Theoretical and Applied Mechanics, 17-20th December 2012, Defence Institute of Advanced Technology (DIAT), Girinagar, Pune- 411025, India.
16. Propagation of small amplitude waves over beds with linear and quadratic slopes, Recent Trends in Mathematical Modelling and Simulation, 18-20th March 2010, Department of Applied Mathematics, Institute of Technology, Banaras Hindu University, Varanasi – 221005, India.

(BOOK)

1. Sahoo, T., Meylan, M., Stepanyants, Y., Boral, S., & Das, S. (2025). Flexural Gravity Waves: The Mathematical Theory and Applications (1st ed.). CRC Press. https://doi.org/10.1201/9781003596103.

(BOOK CHAPTER)

1. S. Goswami* & S. Das (2026), The evolution of CFD simulation models on Wave Energy Converter (WEC). In: P. Borah, T. A. Tran, S. Tavakoli (eds), Advanced Computational and Mathematical Techniques for Wave Energy Converter Systems. STEAM-H: Science, Technology, Engineering, Agriculture, Mathematics & Health. Springer Cham.
2. R. Das* & S. Das, (2024), Surface Wave Profile Due to Oscillatory Motion of an Asymmetric Block of Ocean Floor. In: Ray, R.K., Bora, S.N., Maiti, D.K. (eds) Advances in Theoretical and Applied Mechanics. ISTAM 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore.

(JOURNALS)

2026

1. Ritika Das and Santu Das*, Far-field compressible ocean response from two opposite moving rectangular seafloor blocks, Studies in Applied Mathematics (2026), (accepted on 02/07/2026). IF: 2.4.
2. Ravindra Pethiyagoda, Santu Das* and Michael H. Meylan, Time-domain pressure and surface wave propagation over generic topography due to sea floor motion, Journal of Fluid Mechanics (2026) (accepted on 18/06/2026). IF: 3.9.
3. Injamamul Haque Ahmed, Santu Das* and Michael H. Meylan, Time-domain acoustic-gravity wave propagation in a stratified ocean: Impact of elastic ocean floor, European Journal of Mechanics - B/Fluids (2026), 119, 204525, IF: 2.4.
4. Ravindra Pethiyagoda, Santu Das*, Ben Wilks and Michael H. Meylan, A generalized inner product-based wave scattering from an underwater source in a compressible ocean, Journal of Fluid Mechanics (2026), 1032, A28, IF: 3.9.
5. Sunanda Saha, Swaroop N. Bora* and Santu Das, Time-dependent water wave scattering by a bottom-mounted porous compound cylinder fitted with an annular porous lid, Waves in Complex and Random Media (2026), 36 (2), 1989–2010. IF: 4.051.
6. Gautam Gogoi and Santu Das*, Wave dissipation mechanism of viscous ocean water waves influenced by soft ocean bed. Ocean Engineering (2026), 345, 123524, IF: 6.3.
7. D. Sharma*, S. Das*, D. Chakraborty, A. Mitra and B. N. Goswami, Improving Indian Summer Monsoon Rainfall Prediction using Deep Learning up to two years in advance, Quarterly Journal of the Royal Meteorological Society (2026), 152 (774), e70023, IF: 3.3.

2025

1. D. Deka, M. P. Sarma, S. Das, M. Baruah, I Longkumer, G. Acharjee, D. Chakraborty, D. Dey, S. Chakraborty, N. C Talukdar and S. K. Samanta*, Correlation of Specific Addictions with Cancer Sites Identified among Patients in Northeast India, Scientific Reports (2025), 15, 27598. IF: 3.9.
2. A. D. Mahapatra, A. J. Kashyap*, G. Choudhury, S. Das* and H. K. Sarmah, Nonlinear dynamical analysis of a fractional-order El Niño Southern Oscillation system, The European Physical Journal Plus (2025), 140, 704, IF: 2.9.
3. Ritika Das and Santu Das*, Far-field surface wave and pressure in a compressible ocean induced by the ocean floor's sinusoidal vertical movement, Physics of Fluids (2025), 37 (7), 066651. IF: 4.3.
4. Gautam Gogoi and Santu Das*, Viscoelastic ocean floor influences the surface wave dissipation: A new approach. Applied Mathematical Modelling (2025), 146, 116168, IF: 5.1.
5. Injamamul Haque Ahmed, Santu Das* and Michael H. Meylan, Time-domain acoustic-gravity wave propagation in a two-layer ocean. Physics of Fluids (2025), 37 (6), 066613. IF: 4.3.
6. Devabrat Sharma*, Santu Das* and B N Goswami, Seasonal Prediction of Indian Summer Monsoon Extreme Rainfall Frequency, npj Climate and Atmospheric Science (2025), 8, 141. IF: 8.5.
7. Sunanda Saha, Swaroop Nandan Bora* and Santu Das, Damping of ocean waves by a porous disk submerged in a two-layer fluid. European Journal of Mechanics - B/Fluids (2025), 113, 204263. IF: 2.5.
8. Ravindra Pethiyagoda, Santu Das* and Michael H. Meylan, Atmospheric pressure-driven surface wave propagation in a compressible ocean including static compression. Wave Motion (2025), 134, 103468. IF: 2.5.
9. Santu Das*, Flexural-gravity wave dissipation under strong compression and ocean current near blocking point, Waves in Random and Complex Media (2025), 35(1), 1571-1595. IF: 4.051.

2024

1. Ritika Das and Santu Das*, Surface wave generation from a constant-slope-inducing asymmetric ocean floor motion: influence of compressible ocean, Meccanica (2024), 59 (9), 1607-1623. IF: 1.9.
2. Santu Das* and Michael H Meylan, Effect of Static Compression on Near-Field Tsunami Waves: Three-Dimensional Solution, European Journal of Mechanics-B/Fluids (2024), 106, 197-213. IF: 2.6.
3. Saniya Suhail, Santu Das and Sunanda Saha*, Oblique wave trapping in a two-layer fluid: Effect of wave blocking, Ocean Engineering (2024), 295, 116982. IF: 5.
4. Ravindra Pethiyagoda, Santu Das*, Mitchell Bonham and Michael H. Meylan. Atmospheric pressure-induced three-dimensional surface wave propagation in the compressible ocean: Effect of static compression. Physics of Fluids (2024), 36(9), 096618. IF: 4.1 [EDITOR'S PICK].
5. Santu Das*, Ravindra Pethiyagoda and Michael H. Meylan. Compressible ocean waves generated by sudden seabed rise near a step-type topography. Physics of Fluids (2024), 36 (10) 106619. IF: 4.1.
6. Ravindra Pethiyagoda, Santu Das* and Michael H. Meylan. Evolution of arbitrary temporal ocean floor motion-induced surface waves over a trench. Physics of Fluids (2024), 36 (12), 126606. IF: 4.1.

2023

1. Swaroop Nandan Bora, Santu Das, Michael H. Meylan, Sunanda Saha and Siming Zheng, Time-dependent water wave scattering by a marine structure consisting of an array of compound porous cylinders, Physics of Fluids (2023), 35 (7), 077103. IF: 4.6.
2. Santu Das* and Michael H. Meylan, Effect of static compression on tsunami waves: two-dimensional solution, Physics of Fluids (2023), 35(6), 066603. IF: 4.6.
3. Devabrat Sharma, Santu Das, B N Goswami, Variability and Predictability of the Northeast India Summer Monsoon Rainfall (NEIR), International Journal of Climatology (2023), 43 (11), 5248-5268. IF: 3.9.
4. Santu Das* and Michael H. Meylan, Time-domain wave response of a compressible ocean due to an arbitrary ocean bottom motion, Applied Mathematical Modelling (2023), 118, 832-852. IF: 5.336.
5. Sunanda Saha, Santu Das* and Swaroop N. Bora, Trapped waves within the blocking frequency under compressed sea ice and two-dimensional current, Marine Structures (2023), 87,103336. IF: 4.5.

2022

1. Devabrat Sharma*, Santu Das, Subodh K. Saha and B N Goswami, Mechanism for high ‘potential skill’ of Indian Summer Monsoon Rainfall Prediction up to two years in advance, Quarterly Journal of the Royal Meteorological Society (2022), 148 (749), 3591-3601. IF: 8.9.
2. Sunil C. Barman, Santu Das, Trilochan Sahoo* and Michael H. Meylan, 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, Physics of Fluids (2022), 34(5), 056602. IF: 4.98.
3. Susam Boral, Santu Das, Trilochan Sahoo* and Michael H. Meylan, Blocking dynamics of capillary-gravity waves in a two-layer fluid in the presence of surface and interfacial tensions, Meccanica (2022), 57, 1307–1335. IF: 2.7.
4. Santu Das* and Michael H. Meylan, The effect of compressed ice-shelf on acoustic-gravity wave propagation in a compressible ocean having elastic bottom, Wave Motion (2022), 110, 102897. IF: 2.4.

2021

1. Santu Das and Sunanda Saha*, A transit through the trapping and blocking of flexural-gravity wave: Impact of two-dimensional current and in-plane compression, Physics of Fluids (2021), 33 (11), 116603. IF: 3.521.
2. Subhadra Mishra, Sunanda Saha, Santu Das and Swaroop Nandan Bora*, Reflection and damping of linear water waves by a multi-porosity vertical porous structure placed on a step-type raised seabed, Marine Systems & Ocean Technology (2021), 16, 142-156. (IS: 1.26).
3. Sunil C. Barman, Santu Das*, Trilochan Sahoo and Michael H. Meylan, Scattering of flexural-gravity waves by a crack in a floating ice sheet due to mode conversion during blocking, Journal of Fluid Mechanics (2021), 916, A11. IF: 3.354.

2020

1. Santu Das*, Trilochan Sahoo and Michael H. Meylan, An investigation of the properties of flexural-gravity wave propagation in a coupled submerged and floating plate system, European Journal of Mechanics-B/Fluids, (2020), 82,123-134. IF: 2.131.

2018

1. Santu Das*, Prakash Kar, Trilochan Sahoo and Michael H. Meylan, Flexural-gravity wave motion in the presence of shear current: wave blocking and negative energy waves, Physics of Fluids (2018), 30(10): 106606. IF: 2.279.
2. Santu Das*, Trilochan Sahoo and Michael H. Meylan, Flexural-gravity wave dynamics in two-layer fluid: blocking and dead water analogue, Journal of Fluid Mechanics, (2018), 854: 121-145. IF: 2.893.
3. Harekrushna Behera, Santu Das and Trilochan Sahoo*, Wave propagation through mangrove forests in the presence of a viscoelastic bed, Wave Motion (2018), 78: 162-175. IF: 1.723.
4. Santu Das, Trilochan Sahoo and Michael H. Meylan*, Dynamics of flexural gravity waves: from sea ice to Hawking radiation and analogue gravity,  Proceedings of the Royal Society of London A, (2018), 474 (2209), 20170223. IF: 2.410.
5. Santu Das and Swaroop Nandan Bora*, Oblique Water Wave Damping by Two Submerged Thin Vertical Porous Plates of Different Heights, Computational and Applied Mathematics (2018), 37 (3), 3759-3779. IF: 0.863.

2017

1. Santu Das and Trilochan Sahoo*, Hydroelastic analysis of very large floating structure over viscoelastic bed, Meccanica (2017), 52(8):1871-1887. IF: 2.211.

2016

1. Santu Das, Harekrushna Behera and Trilochan Sahoo*, Flexural gravity wave motion over poroelastic bed, Wave Motion (2016), 63:135-148. IF: 1.723.

2014

1. Santu Das and Swaroop Nandan Bora*, Damping of oblique ocean water waves by a vertical porous structure placed on a multi-step bottom, Journal of Marine Science and Application (2014), 13(4), 362-376. SNIP: 0.808.
2. Santu Das and Swaroop Nandan Bora*, Reflection of oblique ocean water waves by a vertical porous structure placed on a multi-step impermeable bottom, Applied Ocean Research, (2014), 47: 373-385. IF: 1.950.
3. Santu Das and Swaroop Nandan Bora*, Reflection of oblique ocean water waves by a vertical rectangular porous structure placed on an elevated horizontal bottom, Ocean Engineering, (2014), 82: 135-143. IF: 2.214.
4. Santu Das and Swaroop Nandan Bora*, Wave damping by a vertical porous structure placed near and away from a rigid vertical wall, Geophysical and Astrophysical Fluid Dynamics, (2014), 108 (2): 147-167. IF: 1.417.

(CONFERENCES)

1. R. Pethiyagoda*, S. Das, B. Wilks, M. H. Meylan, Scattering of internal pressure waves by an underwater step in a compressible ocean, 41st International Workshop on Water Waves and Floating Bodies (IWWWFB-2026), Plitvice, Croatia, 26-29 April 2026.
2. S. Das* and M. H. Meylan, Time-domain simulation of surface waves in a compressible ocean due to the motion of a circular portion of the ocean floor, 38th International Workshop on Water Waves and Floating Bodies (IWWWFB-2021), University of Michigan, Ann Arbor, MI 48104, USA, 07-10 May 2023.
3. S. Saha*, S. Das and S. N. Bora, Time-dependent water-wave scattering by a bottom-mounted porous compound cylinder, 14th International Conference on Hydrodynamics (ICHD-2022), Wuxi (China), 21-25 October, 2022.
4. S. Das* and M. H. Meylan, Time dependent motion due to sinusoidal ocean bottom oscillation, 37th International Workshop on Water Waves and Floating Bodies (IWWWFB-2022), Giardini Naxos (Italy), April 10-13, 2022.
5. S. Saha*, S. Das and S. N. Bora, Trapped waves within the blocking frequency under compressed sea ice and two-dimensional current, 37th International Workshop on Water Waves and Floating Bodies (IWWWFB-2021), Giardini Naxos (Italy), April 10-13, 2022.
6. S. Das* and M. H. Meylan, Acoustic-gravity wave generation as a result of bottom oscillation of compressible ocean, 36th International Workshop on Water Waves and Floating Bodies (IWWWFB-2021), Seoul National University (South Korea), April 25-28, 2021.
7. S. C. Barman*, S. Das and T. Sahoo, Energy identity for flexural-gravity wave scattering due to a crack in a floating ice sheet in two-layer fluid in the context of blocking dynamics, 36th International Workshop on Water Waves and Floating Bodies (IWWWFB-2021), Seoul National University (South Korea), April 25-28, 2021.
8. M. H. Meylan*, T. Sahoo and S. Das, Flexural gravity wave scattering for compressed ice, 35th International Workshop on Water Waves and Floating Bodies (IWWWFB-2020), Seoul National University (South Korea), August 24-28, 2020.
9. S. Das*, T. Sahoo and M. H. Meylan, Effect of a submerged plate on flexural-gravity wave blocking, 34th International Workshop on Water Waves and Floating Bodies (IWWWFB-2019), Newcastle (Australia), April 7-10, 2019.
10. S. Das*, T. Sahoo and M. H. Meylan, Flexural gravity wave blocking in a two-layer fluid, 33rd International Workshop on Water Waves and Floating Bodies (IWWWFB-2018), Guidel-Plages (France), April 4-7, 2018.

(ArXiv)

1. Ravindra Pethiyagoda, Santu Das*, Ben Wilks and Michael H. Meylan, A novel generalized inner product-based wave scattering from an underwater source in a compressible ocean (2025).
2. Ravindra Pethiyagoda, Santu Das* and Michael H. Meylan, Time-domain pressure and surface wave propagation over generic topography due to sea floor motion (2025).
3. Devabrat Sharma, Santu Das and B. N. Goswami*,  High ENSO-based 18-month lead potential predictability of Indian summer monsoon rainfall, (2021).

(Research Square)

1. Devabrat Sharma*, Santu Das, Deepayan Chakraborty et al. Physics-based 18-month lead forecast of Indian Summer Monsoon Rainfall, (2023).

*Corresponding Author

ONGOING

1. Impact of porous seabed on tsunami wave propagation in a stratified ocean, Role – PI, Duration – 2 years (April 2025- March 2027), Amount – INR 6,00,000, Funding Agency - IASST in-house.

COMPLETED

1. Non-rigid ocean floor motion generates acoustic-gravity wave (AGW) in stratified ocean, Role – PI, Duration – 2 years (April 2024- March 2026), Amount – INR 2,70,000, Funding Agency - IASST in-house.
2. Mathematical Modelling of acoustic-gravity wave (AGW) propagation in the ocean: impact of ocean floor movement and ocean water density stratification, Role – PI, Duration – 2 years (April 2023- March 2025), Amount – INR 1,90,000, Funding Agency - IASST in-house.
3. 3D time-domain simulation of near-field ocean surface wave induced by sudden ocean floor disturbance or sudden pressure change in the atmosphere, Role - PI, Duration - 6 months (Sept 2023 - March 2024), Amount - INR 16,76,293, Funding Agency - SERB, GoI.
4. A comparative study of AI-assisted automated diagnosis of colposcopy and visual inspection (VIA/VILI) images aimed at early screening of cervical cancer for accuracy and feasibility. Role – Co-PI, Duration – 2 years (April 2021- March 2023), Amount – INR 12,14,000, Funding Agency - IASST in-house.
5. Flexural-Gravity Waves: A Complete Theoretical Development, Role – Co-PI, Duration – 2 years (extended up to 30 September 2022), Amount – INR 70,10,645, Funding Agency – SPARC (MHRD), July 2019 – September 2022.

PhD Students:

Completed

1. Dr. Devabrat Sharma (Feb 2020 - May 2025).

Ongoing

1. Ms. Ritika Das (joined in July 2021)
2. Mr. Injamamul Haque Ahmed (joined in August 2022)
3. Mr. Gautam Gogoi (Joined in Jan 2023)
4. Mr. Chandan Kumar Das (Joined in Jan 2025)
5. Mr. Hirak Jyoti Sarma (Joined August 2022)
6. Mr. Rajkishor Deka (Joined July 2024)

Winter/Summer Internship:

1. Mr. Pritam Das (MSc Mathematics) - completed
2. Mr. Kallol Bhuyan (Integrated MSc Mathematics) - completed
3. Mr. Saikat Nath (MSc Mathematics) - completed
4. Mr. Sushruta Biswas (BSc) - ongoing

OPPORTUNITIES:

The following positions are available:

1. Master projects/Summer/winter internships in the broad area of Mathematics.
2. JRF position for motivated students to work on applied mathematics (Hydrodynamics, Hydroelasticity, Applied Mathematics).

Interested persons may also directly contact me at the following address:

Dr. Santu Das

Associate Professor – I

Mathematical and Computational Sciences (Physical Sciences Division)

Institute of Advanced Study in Science and Technology

Paschim Boragaon, Garchuk, Guwahati – 781035, India

Email: santudas20072[at]gmail[dot]com / d.santu[at]iasst[dot]gov[dot]in