• 1.5 Yr in Teaching
• 5 Yrs in research

• Department of Mechanical engineering, Regional Institute of Science and Technology, Meghalaya (July, 2011-July, 2012) as Assistant Professor.
• Department of Mechanical engineering, Indian Institute of Technology, Guwahati, Assam (July, 2012-March, 2018) as Teaching Assistant and Research Scholar.
• In a DAE-BRNS funded project named “Development of a generic purpose CFD solver over a hybrid unstructured grid”Department of Mechanical engineering, Indian Institute of Technology, Guwahati, Assam (Nov, 2017-March, 2018) as research fellow.

Publications:

• S. Kotoky, A. Dalal, G. Natarajan, “Effects of specularity and particle-particle restitution coefficients on the hydrodynamic behavior of dispersed gas-particle flows through horizontal channels”, Advanced Powder Technology (Elsevier),Vol. 29(4), pp.874-889.
• S. Kotoky, A. Dalal, G. Natarajan, “A parametric study of dispersed laminar gas-particle flows through vertical and horizontal channels” Advanced Powder Technology (Elsevier), Vol. 29(5), pp. 1072-1084.
• S. Kotoky, A. Dalal, G. Natarajan, “Effects of specularity and particle-particle restitution coefficients on the recirculation characteristics of dispersed gas-particle flows through a sudden expansion” Advanced Powder Technology (Elsevier), Vol. 29(10), pp. 2463-2475.
• S. Kotoky, A. Dalal, G. Natarajan (2017) “Eulerian-Eulerian Modeling of Dispersed Laminar Gas-Particle Flows over an unstructured grid”, Fluid Mechanics and Fluid Power Contemporary Research, 09/2017, pages 1101-1110; DOI; https://doi.org/10.1007/978-81-322-2743-4_104.
• S. Kotoky, A. Dalal, G. Natarajan, 2018, “The role of particle diameter on the fluidization behavior in a bubbling gas-solid fluidized bed”, Paper ID. 203, International Conference on Recent Innovations and Developments in Mechanical Engineering (IC-RIDME 2018),NIT Meghalaya, India. (Accepted for oral presentation).
• Manik, M. Parmananda, S. Kotoky, P. Borgohain, A. Dalal and G. Natarajan, 2017, “Lessons from Anupravaha: Towards a General Purpose Computational Framework on Hybrid Unstructured Meshes for Multi-Physics Applications”, Paper No. CHT-17-209, ICHMT International Symposium on Advances in Computational Heat Transfer, Napoli, Italy.
• S. Kotoky, A. Dalal, G. Natarajan, 2016, “Numerical Study of Effects of Particle Diameter and Particle Volume Fractions on Dispersed Gas-Particle Flows through Vertical Channels”, Paper No. 214, 6^th International Congress on Computational Mechanics and Simulation, IIT Bombay, India.
• S. Kotoky, A. Dalal, G. Natarajan, 2015, “Numerical Simulation of Laminar Gas- Particle Flow through a vertical channel and over a backward facing step”, Paper No: F- FM-049, 68th Annual Session of Indian Institute of Chemical Engineers (CHEMCON conference 2015), IIT Guwahati, India.
• S. Kotoky, A. Dalal, G. Natarajan, 2014 “Eulerian-Eulerian Modeling of Dispersed Laminar Gas-Particle Flows over an unstructured grid”, Paper No: 522, 5th International and 41st National Conference on Fluid Mechanics and Fluid Power, IIT Kanpur, India.
• Pandey, S. Kotoky, A. Dalal and G. Natarajan (2015) “Numerical Simulations of axisymmetric flow on hybrid unstructured grid”, Paper No: ISME-T-017, 17^th ISME conference, IIT Delhi, India.

(BOOK Chapter)

• S. Kotoky, A. Dalal, G. Natarajan (2017) “Eulerian-Eulerian Modeling of Dispersed Laminar Gas-Particle Flows over an unstructured grid”, Fluid Mechanics and Fluid Power Contemporary Research, 09/2017, pages 1101-1110; DOI; https://doi.org/10.1007/978-81-322-2743-4_104.

(International conference)

• J. Manik, M.Parmananda, S. Kotoky, P. Borgohain, A. Dalal and G. Natarajan, 2017, “Lessons from Anupravaha: Towards a General Purpose Computational Framework on Hybrid Unstructured Meshes for Multi-Physics Applications”, Paper No. CHT-17-209, ICHMT International Symposium on Advances in Computational Heat Transfer, Napoli, Italy.
• S. Kotoky, A. Dalal, G. Natarajan, 2016, “Numerical Study of Effects of Particle Diameter and Particle Volume Fractions on Dispersed Gas-Particle Flows through Vertical Channels”, Paper No. 214, 6th International Congress on Computational Mechanics and Simulation, IIT Bombay, India.
• S. Kotoky, A. Dalal, G. Natarajan, 2015, “Numerical Simulation of Laminar Gas- Particle Flow through a vertical channel and over a backward facing step”, Paper No: F- FM-049, 68th Annual Session of Indian Institute of Chemical Engineers (CHEMCON conference 2015), IIT Guwahati, India.

(National conference)

• M. Pandey, S. Kotoky, A. Dalal and G. Natarajan (2015) “Numerical Simulations of axisymmetric flow on hybrid unstructured grid”, Paper No: ISME-T-017, 17th ISME conference, IIT Delhi, India.