Ratan Sarmah

ProfileImage: 
Designation: 
Assistant Professor
Department: 
Civil Department
Email: 
ratan@iitrpr.ac.in
Areas of Research: 
Groundwater Hydrology
Analytical Modeling of Subsurface Flow
Education: 
PhD- Indian Institute of Technology Guwahati (2011-2015)
MTech- Indian Institute of Technology Guwahati (2009-2011)
B.E- Jorhat Engineering College (2005-2009)
Work Experience: 
Assistant Professor, Indian Institute of Technology Ropar (2018 June – till date)
Assistant Professor, National Institute of Technology Meghalaya, Shillong (2015 July – 2018 May)
Selected Publications/Patents: 

JOURNALS 

Sarmah, R., Chavan, S. R.,  and Sonkar. I. (2024). Analytical Solution of the Linearized Boussinesq Equation Considering Time‑Dependent Downslope Boundary, Variable Recharge and Bedrock Seepage. Water Resources Management. https://doi.org/10.1007/s11269-024-03739-6

Kumar, A., Sonkar., I and Sarmah, R. (2024).  Modeling root zone water and salt transport using matric flux potential based root water uptake distribution. Journal of Hydrology, 630, 130712. https://doi.org/10.1016/j.jhydrol.2024.130712

Sarmah, R., Sonkar. I., and Chavan, S. R. (2022). Analytical solutions for predicting seepage in a layered ditch drainage system under Dirichlet and lagging Robin boundary conditions. Hydrological Sciences Journal.  https://doi.org/10.1080/02626667.2022.2101891

Sarmah, R., Barua, G. and Kartha, S. A. (2020). Experimental and Analytical Investigation of Ponded Ditch Drainage System with Temporal Boundaries. Journal of Hydrologic Engineering (ASCE). 25(12), 04020052

Sarmah, R., and Gazi, A. H. (2020). Analytical Steady-State Solution for a Three-Dimensional Partially Penetrating Ditch Drainage System Receiving Water from an Uneven Ponding Field. J. Irrig. Drain Eng. (ASCE). 146(12), 06020011

Sarmah, R., and Tiwari, S. (2018). A Two-Dimensional Transient Analytical Solution for a Ponded Ditch Drainage System under the Influence of Source/Sink. Journal of Hydrology. 558, 196-204.

Sarmah, R., and Barua, G. (2017). Analysis of Three-Dimensional Transient Seepage into Ditch Drains from a Ponded Field. Sadhana. 42(5), 769-793.

Barua, G., and Sarmah, R. (2016). An Analytical Solution for Predicting Transient Seepage into Partially Penetrating Ditch Drains Receiving Water from a Ponded Field. Acta Geophysica. 64(1), 149-205.

Sarmah, R., and Barua, G. (2015). Hydraulics of a Partially Penetrating Ditch Drainage System in a Layered Soil Receiving Water from a Ponded Field. Journal of Irrigation and Drainage Engineering (ASCE). 141(8), 04015001.