Dr. Dwarika Nath Ratha

Associate Professor

Specialization

Ph.D Hydraulics

Email

dnath.ratha@thapar.edu

Specialization

Ph.D Hydraulics

Email

dnath.ratha@thapar.edu

Biography

Dwarikanath Ratha is working presently as Associate Professor at Thapar Institute of Engineering & Technology. He was appointed in 2008 to Thapar Institute of Engineering & Technology as a lecturer and became Associate Professor in the year 2015. He has published over 20 research publication in various Journals and Conferences. His contribution in research has been recognized by award in Journal of Hazardous, Toxic and Radioactive waste, ASCE Journal in the year 2010 and 2013 as best theoretical oriented paper.

RESEARCH TAGS

  • Groundwater flow and transport modeling
  • Slurry flow and transport through pipes
  • Watershed management
  • Environmental Impact Assessment of water resources related projects

RESEARCH PROJECTS:

Details of Project

Name of funding agency

Duration

Amount of Project

Resistance properties of coal-water slurry flowing through local piping fittings

University Grant Commission (Major Research Project)

3 years

6,44,000

Lateral and longitudinal hydrodynamic dispersion through rigid and flexible vegetation

Department of Science and Technology, New Delhi (Fast track scheme for young scientist)

3 years

14,34,000

Analysis of virus transport through subsurface media

Council of Scientific and Industrial Research (CSIR)

3 years

23,46,000

AWARDS AND HONORS

  • Recipient of best theoretical oriented paper in ASCE Journal in the year 2010 and 2013.
  • Member, State committee on dam safety for the state of Punjab (May 2022-April 2025)

 

RESEARCH PUBLICATIONS:

  1. Ratha, D., Hari Prasad, K.S. and Ojha, C.S.P. (2007) A finite volume model for the solution of the advection-dispersion equation., ISH Journal of Hydraulic Engineering, Vol 13, No 2, pp. 122-135.
  2. Ratha, D, Hariprasad, K.S. and Ojha, C.S.P (2009). Analysis of virus transport in ground water and identification of transport parameters, Journal of Hazardous, Toxic and Radioactive Waste, ASCE, Vol 13 (2), 98-109.
  3. Ojha, C.S.P., Hariprasad, K.S., Ratha, D, and Surampalli, R.Y., (2012) Virus transport through unsaturated zone: Analysis and parameter identification, Journal of Hazardous, Toxic and Radioactive Waste, ASCE, Vol 16 (2), 96-105.
  4. Hariprasad, K.S, Ratha, D. and Ojha, C.S.P. (2012) Identification of virus transport parameters in ground water: Data Error and Bias, Journal of Hydro Environment Research, Elsevier Publisher. Vol 6(1), 41-50.
  5. Sarkar, A. and Ratha, D. (2014) Flow around submerged structures subjected to shallow submergence over plane bed, Journal of fluid and structures. Elsevier Publisher, 44, 166-181.
  6. Ratha, D. and Agrawal, V.P. (2014) Structural modeling and analysis of water resources development and management system: A Graph Theoretic approach, Water Resources Management, 28, 2981-2997.
  7. Ratha, D. and Sarkar, A. (2015) Analysis of backward facing step with transition, Frontiers of Structural and Civil Engineering, 9 (1), 71-81.
  8. Ratha, D. and Agrawal, V.P. (2015) A digraph permanent approach to evaluation and analysis of integrated watershed management system, Journal of Hydrology, 525, 188-196.
  9. Singh, M.K, Kumar, S. and Ratha, D. (2015) Mineral Characterization of Indian Coal, International Journal of Applied Engineering Research, 10 (78), 131-135.
  10. Singh, M.K, Ratha, D., Kumar, S. and Kumar, D. (2016) Influence of particle size distribution and temperature on rheological behavior of coal slurry, International Journal of coal preparation and utilization, 36(1), 44-54.
  11. Singh, M.K, Kumar, S. and Ratha, D. (2016) Physico-chemical and leaching characteristics of fly and bottom ash, Energy sources, Part A: Recovery, Utilization and Environmental effects, 38 (16), 2377-2382.
  12. Singh, M.K, Kumar, S., Ratha, D. Kaur, H. (2017) Design of slurry transportation pipeline for the flow of multi-particulate coal ash suspension, International Journal of Hydrogen Energy, 42, 19135-19138.
  13. Kumar, A, Babbar, R. and Ratha, D (2017) Assessment of runoff potential of Tehri sub-watersheds based on geomorphology and runoff index, Disaster Advances, 10 (9), 9-17.
  14. Ratha, D, Chandra, A, Babbar, R and Sarkar, A (2018) Longitudinal dispersion subjected to rigid vegetation in a channel, KSCE Journal of Civil Engineering, 22(12), 5242-5252.
  15. Singh, V, Kumar, S., and Ratha, D. (2019) Synergistic effect of the addition of TiO2 feedstock on solid particle erosion of Ni/Al2O3 and Ni/Cr2O3 coatings, Wear, Accepted. 426-427, 250-257.
  16. Singh, M.K, Kumar, S., and Ratha, D. (2020) Computational analysis on disposal of coal slurry at high solid concentrations through slurry pipeline, International Journal of coal preparation and utilization, 40(2), 116-130.
  17. Singh, V, Kumar, S., and Ratha, D. (2020) Optimization of Al2O3 and TiO2 Blends to be used as Erosion Resistant Coating for Mild Steel, Journal of Tribology, 142 (10), 1-9.
  18. Gorai, S, Ratha, D, Dhir, A. (2021) Adapting rainfall variability to flood risk: A case study of the Ghaggar river basin, Journal of Geological Society of India, 97, 1347-1354.
  19. Singh, G, Gorai, S, Ratha, D, Yadav, B.R and Dhir, A. (2022) Monitoring groundwater quality status using geo-spatial technique: A case study on Malwa region, Punjab, India. International Journal of Energy and Water Resources, 6(2) 253-266.
  20. Singh, M.K, Kumar, S., Ratha, D. Kaur, H. (2022) Improvement in head loss characteristics of fine particulate coal water suspension with addition of coarser particulate, International Journal of coal preparation and utilization, 42(3), 305-314.
  21. Singh, V, Kumar, S., and Ratha, D. (2022) Experimental and Numerical analysis of flow characteristics of sand water slurry in a horizontal pipe, Journal of Engineering Research, 10, 199-215.
  22. Gorai, S, Ratha, D, Dhir, A. (2021) Prediction of flood risk zone of Ghaggar river basin, India using Graph theory technique, Geocarto International, Accepted.
  23. Chalotra, A., Ratha, D., Babbar, R. and Baranwal, M. (2022) A study on transport of Escherichia coli through saturated porous medium, International Journal of Environmental Science and Technology, Accepted.
  24. Kumar P., Kumar, S., Singh, V, and Ratha, D. (2022) Surface erosion performance of Yttrium oxide blended WC-12Co thermally sprayed coating for mild steel, Surface Review and Letters, Accepted.
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