I am an applied mathematician working on water wave mechanics. My research interest includes the following topics:

  1. Hydroelasticity, flexural-gravity waves
  2. Fluid-structure interaction
  3. Flow-through porous medium
  4. Poroelasticity and viscoelasticity
  5. Wave blocking, dead water analogue
  6. Wave scattering, damping, and trapping

Currently, I am working on the following topics:

  1. Development of flood prediction system for Brahmaputra River in Northeast India using Rainfall data and geography of the river basin.
  2. Flexural gravity wave blocking in the presence of high compressive force and associated wave-structure interaction problems (orthogonality relation).
  3. Analogue gravity
  4. Effect of elastic ocean beds on hydroelastic wave blocking
  • Education
    1. BSc in Mathematics, University of Calcutta, 2004-2007
    2. MSc in Mathematics and Computing, IIT Guwahati, 2007-2009
    3. Ph.D. in Mathematics, IIT Guwahati, 2009-2014

    Professional Life

    1. Institute Postdoctoral Fellow, IIT Kharagpur, Feb 2015-July 2017.
    2. Assistant Professor in Mathematics, SRM University AP – Amaravati, July 2017-May 2018
    3. Assistant Professor in Mathematics, IIIT Bhagalpur, July 2018-June 2019
    4. Assistant Professor in CCNS, IASST Guwahati, July 2019-Present

    Membership of Professional Bodies – Life member of ISTAM (2019-present)

    Invited Talk:

    1. Flexural gravity waves in marine science and technology, Alumnus Reflection, 21st October 2016, Department of Mathematics, Indian Institute of Technology Guwahati, Guwahati-781039, India.
    2. Some remarkable phenomena in flexural gravity waves, 22nd June 2017, Department of Naval Architecture and Ocean Engineering, Seoul National University, Seoul-08826, South Korea.
    3. 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.
    4. Time domain analysis on hydroelasticity problems, 9-13 December 2019, Department of Ocean Engineering and Naval Architecture, IIT Kharagpur, Kharagpur – 721302, India

    Workshop/Seminar/Programs attended:

    1. Water Waves and Floating Bodies, OASTC, IIT Kharagpur, India, 25-26th November 2011.
    2. National Program on Differential Equations: Theory, Computation and Applications- Advance Level Training Programme, IIT Bombay, India, 10-30th June 2012.
    3. Computational Methods in Hydroelasticity, GIAN course, IIT Kharagpur, India, 12-16th December 2016.
    4. Time domain analysis on hydroelasticity problems, 9-13 December 2019, Department of Ocean Engineering and Naval Architecture, IIT Kharagpur, Kharagpur – 721302, India

    Scholarships:

    1. Summer Research Fellow: Indian Academy of Sciences – May 2008-July 2008
    2. Institute Scholarship: GATE (IITG)– July 2009-Dec 2009
    3. CSIR-JRF: Jan 2010-Dec 2011
    4. CSIR-SRF: Jan 2012-Sept 2014

    Paper presentation:

    1. 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.
    2. 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.
    3. 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.
    4. 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.
    5. 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.
    6. 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
    7. 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.
    8. 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
    9. 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.

    • (JOURNALS)

    1. 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, DOI:1080/03091929.2013.834051, IF: 1.417.
    2. Santu Dasand 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, DOI:1016/j.oceaneng.2014.02.035 , IF: 2.214.
    3. Santu Dasand 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, DOI: 1016/j.apor.2014.07.001 , IF: 1.950.
    4. 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, DOI:1007/s11804-014-1281-7, SNIP: 0.808.
    5. Santu Das, Harekrushna Behera and Trilochan Sahoo, Flexural gravity wave motion over poroelastic bed, Wave Motion (2016), 63:135-148, DOI: 1016/j.wavemoti.2016.02.002, IF: 1.723.
    6. Santu Das andTrilochan Sahoo, Hydroelastic analysis of very large floating structure over viscoelastic bed, Meccanica (2017), 52(8):1871-1887, DOI: 1007/s11012-016-0529-5, IF: 2.211.
    7. Santu Das and Swaroop Nandan Bora, Oblique Water Wave Damping by Two Submerged Thin Vertical Porous Plates of Different Heights, Computational and Applied Mathematics, first online on 30th November 2017, DOI:10.1007/s40314-017-0545-7, IF: 0.863
    8. 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), DOI: 1098/rspa.2017.0223 , IF: 2.410
    9. 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, DOI: 1016/j.wavemoti.2018.02.002, IF: 1.723.
    10. 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, DOI: 1017/jfm.2018.617, IF: 2.893.
    11. 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, DOI: 1063/1.5052228 , IF: 2.279.

    (CONFERENCES)

    1. S. Das, T. Sahoo and M. H. Meylan, Flexural gravity waves in a two-layer fluid, 33rd International Workshop on Water Waves and Floating Bodies (IWWWFB-2018), Guidel-Plages (France) during April 4-7, 2018.
    2. 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) during April 7-10, 2019
    3. M. H. Meylan, T. Sahoo and S. Das, Flexural gravity wave scattering for compressed ice, accepted in 35th International Workshop on Water Waves and Floating Bodies (IWWWFB-2019), Seoul National University (South Korea) during April 26-29, 2020

    Flexural-Gravity Waves: A Complete Theoretical Development, Role – Co-PI, Duration – 2 years, Amount – INR 70,10,645, Funding Agency – SPARC (MHRD), July 2019 – ongoing.

    To be updated soon.

    CONTACT:

    This page will be updated from time to time for any possible position.

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

    Dr. Santu Das

    Assistant Professor – II

    Mathematical and Computational 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