Mechanical Engineering Department
यांत्रिक अभियांत्रिकी विभाग

Dr. Debajit Saha

Assistant Professor

debajit.saha1986@nitsikkim.ac.in +91-7479013191
+91-9748552504

Research Interest : Fluid Mechanics and Machines, Turbulence, Computational Fluid Dynamics, Thermal Engineering

Experience

7 Years (Teaching) at NIT Sikkim

Teachings

Under Graduate Theory Classes:

Fluid Mechanics
Fluid Machinery
Gas Dynamics
Aerodynamics
Flight Dynamics
Refrigeration and Air-Conditioning
Introduction to Turbulence
Turbomachinery
Thermal Engineering
Mechanics of Solids

Laboratory Classes:

Engineering Graphics Laboratory
Fluid Mechanics Laboratory
Fluid Machinery Laboratory
Elements of Solid Mechanics Laboratory
Workshop Practice

Education

B.E. (NIT Agartala)
M.M.E. (Jadavpur University)
Ph.D. (Jadavpur University)

Contact Address :

Dept. Of Mechanical Engineering
N.I.T. Sikkim
Ravangla Campus, Barfung Block
South Sikkim - 737139

Journals:

Debajit Saha, Snehamoy Majumder and Dipankar Sanyal, " Numerical analysis of the main turbulent flow through an axi symmetric circular duct with the side mass injection at various injection angles", International Journal of Engineering Science and Technology (IJEST), ISSN: 0975-5462, Vol. 2, No. 6, 2010, pp. 1561-1568.
Snehamoy Majumder, Debajit Saha, Pritam Das, "Turbulent fluid flow visualization in an axi-symmetric circular duct with multiple side mass injection", International Journal of Engineering Science and Technology (IJEST), ISSN: 0975-5462, Vol. 2 No. 7, 2010, pp. 3008-3017.
Snehamoy Majumder, Debajit Saha, Pritam Das, "Turbulent fluid flow analysis in a circular axi-symmetric duct having closed inlet with side jet flow", International Journal of Engineering Science and Technology (IJEST), ISSN: 0975-5462, Vol. 3 No. 7, 2011, pp. 5578-5592.
Snehamoy Majumder, Debajit Saha, Pritam Das, "Numerical simulation of twin turbulent side mass injection into a cross flow through a circular duct", International Journal of Engineering Sciences Research (IJESR), ISSN: 2230-8504; e-ISSN-2230-8512, Vol. 03, No. 05, 2012, pp. 825-833.
Snehamoy Majumder, Debajit Saha, Pritam Das, "Investigation of the penetration capability of an axi-symmetric cross jet in a turbulent fluid flow through a circular pipe", International Journal of Applied Engineering Research, (IJAER), ISSN: 0973-4562, Vol. 7, No. 12, 2012, pp. 1391-1405.
Snehamoy Majumder, Debajit Saha, Pritam Das, " A CFD analysis of turbulent fluid flow in closed and semi-closed porous enclosure", International Journal of Fluids Engineering (IJFE), ISSN: 0974-3138, Vol. 5, No. 1, 2013, pp. 13-32.
Snehamoy Majumder, Debajit Saha, Partha Mishra, " Numerical and experimental analysis of the growth of gravitational interfacial instability generated by two viscous fluids of different densities", Journal of Fluids, Hindawi Publishing Corporation, Volume 2013, Article ID 532016, pp. 1-11.
Debajit Saha and Snehamoy Majumder, "CFD Analysis of the Twin Inclined Injection Flows in an Axi-Symmetric Duct along with Main Turbulent Flow", Applied Mechanics and Materials, Vol. 592-594, 2014, pp. 1897-1902.
Pritam Das, Snehamoy Majumder, Debajit Saha and Arindam Mandal, "Hydrodynamic study of turbulent fluid flow in an axi - symmetric duct with crescent", Journal of Experimental and Applied Mechanics, Vol. 6, No. 2, 2015, pp. 57-69.

Conferences:

Debajit Saha and Snehamoy Majumder. "A Numerical Study of Coaxial Turbulent Flow Mixing and Heat Transfer in a Cylindrical Duct with or without Mass Bleeding". 10th International Conference on Mechanical Engineering 2011 (ICME2014), Jun 2014.
Debajit Saha and Snehamoy Majumder. "Axi-Symmetric Turbulent Flow Analysis in a Circular Duct With Confined Jet and Mass Blowing". 40th National Conference on Fluid Mechanics and Fluid Power (FMFP 2013), Dec 2013.
Debajit Saha and Snehamoy Majumder. "CFD analysis of swirling fluid flowing in a circular duct with coaxial confined jet at inlet". 1st International Conference on Mechanical Engineering (INCOM18), Jan 2018.
Debajit Saha and Snehamoy Majumder. "Numerical analysis of coaxial turbulent fluid flow with a swirled annular jet using two turbulence models". 5th International and 41th National Conference on Fluid Mechanics and Fluid Power (FMFP 2014), Dec 2014.
Debajit Saha and Snehamoy Majumder. "Rotating Turbulent Jet Flow With Mass Injection". 42nd National Conference on Fluid Mechanics and Fluid Power (FMFP 2015), Dec 2015.
Debajit Saha, Aditya Prakash Ghosh, Anil K Prajapati, Anand Prasad. "Analysis of Turbulent Fluid Flow through a Circular Duct by Varying the height of Baffles Attached at the Lower Wall". 4th International Conference on Recent Innovations in Science and Technology (RIST2022), Jul 2022.
Debajit Saha, Pramita Bit and Snehamoy Majumder. "Laminar Three Dimensional Fluid Flow and Heat Transfer Analysis Considering Twin Side Mass Injections with Partial or No Admittance of Main Flow in a Square Duct". 6th International and 43rd National Conference on Fluid Mechanics and Fluid Power (FMFP2016), Dec 2016.
Debajit Saha, Pritam Das and Snehamoy Majumder. "Experimental Study of Turbulent Air Flow in a Circular Duct with Multiple Side Mass Injection: Enhancement of Friction Coefficient by the addition of Mass Laterally". 44th National Conference on Fluid Mechanics and Fluid Power (FMFP2017), Dec 2017.
Debajit Saha, Snehamoy Majumder and Dipankar Sanyal. "Numerical analysis of recirculatory turbulent flow through an axi-symmetric circular duct by the side mass injection through the wall". 37th National and 4th International Conference on Fluid Mechanics and Fluid Power (FMFP 2010), Dec 2010.
Debajit Saha, Snehamoy Majumder and Dipankar Sanyal. "Numerical analysis of the side mass injection flow with the main turbulent flow through an axi-symmetric circular duct". National conference on recent advances in fluid and solid mechanics (RAF & SM-10), Feb 2010
Anil Kumar Rout, Snehamoy Majumder, Debajit Saha, Arindam Mandal. "Numerical Analysis and Heat Transfer of Laminar Fluid Flow through a Square Duct with Injections from Wall". 40th National Conference on Fluid Mechanics and Fluid Power (FMFP 2013), Dec 2013.
Anil Kumar Rout, Snehamoy Majumder, Debajit Saha, Arindam Mandal. "Study of laminar flow in a square duct with injection from a porous wall". 6th International and 43rd National Conference on Fluid Mechanics and Fluid Power (FMFP2016), Dec 2016.
Dibyendu Halder, Snehamoy Majumder, Debasish Roy, Arindam Mandal, Debajit Saha. "Experimental Study of Tsunami Wave Using a Small-Scale Dam Break Model with the Variation of Water Level in a Smooth Slope". 10th International Conference on Mechanical Engineering, (ICME 2014), Jun 2014.
Hiranmoy Samanta Debajit Saha, Kamal Golui, Rajesh Dey. "Experimental Investigation and the CFD modelling of a INVELOX type wind Turbine". 1st International Conference in Fluid Thermal and Energy Systems, Jun 2022.
Hiranmoy Samanta, Kamal Golui, Sk Tarif Ali and Debajit Saha. "Numerical Study of the Unsteady Flow in Simplified and Realistic Bifurcation Arterial Models". International Conference on Evolutionary Manufacturing, Design, and Operational Practices for Sustainability (ICEMDOPS-2022), Dec 2022.
Pradip Mondal, S Ghosh, Debajit Saha, S N Barman. "Ecno-Environ Performance Study of an efficient combined cycle plant fueled via MSW of Indian Cities". International Conference on Energy and Sustainable Development, Feb 2020.
Pramita Bit, Debajit Saha, Snehamoy Majumder. "Numerical Analysis of Three-Dimensional Laminar Fluid Flow and Heat Transfer through a Square Duct with a Baffle on the Lower wall". 6th Academic meet on Mechanical Engineering, Industrial Engineering and Material Science & Engineering, Apr 2015.
Pramita Bit, Debajit Saha, Snehamoy Majumder. "Numerical analysis of three-dimensional laminar fluid flow and heat transfer through a square duct with twin baffles". 42nd National Conference on Fluid Mechanics and Fluid Power (FMFP 2015), Dec 2015.
Snehamoy Majumder and Debajit Saha. "Effects of side mass injection velocity, location and inlet swirl on the main turbulent fluid flow through a circular duct". 9th International Conference on Mechanical Engineering 2011 (ICME2011), Dec 2011.
Snehamoy Majumder, Arindam Mandal and Debajit Saha. "Flow visualization and study of drag parameters with mass blowing in axisymmetric expansion type turbulent flow". 9th International Conference on Mechanical Engineering 2011 (ICME2011), Dec 2011.
Snehamoy Majumder,Debajit Saha, Arindam Mandal and Vikram Roy. "Effects of swirl imparted at inlet on the recirculation bubble generated in the turbulent flow in an axi-symmetric sudden expansion". 9th International Conference on Mechanical Engineering 2011 (ICME2011), Dec 2011

Achievements :

1.Received University Gold Medal for standing First in order of merit at the Master of Mechanical Engineering Examination, 2010.

2.Received Institute Gold Medal for securing highest marks amongst students of all branches in the B.E. Examination, 2008.

3.Received Certificate of Honour from Tripura Engg. College Alumni for being topper in Mechanical Engineering Department of 2008 batch in B.E course at NIT Agartala.

4.Qualified in GATE 2008 held on February 10, 2008.

5.Awarded SRF under State Govt. Fellowship, West Bengal, India in the year 2010.

6. Awarded Senior Research Fellowship by CSIR, Govt. of India in the year 2011.

7. Awarded Inspire Fellowship by Department of Science and Technology (DST), India in the year 2011.

8.Received Gold Medal for scoring the highest mark in Bengali at Madhyamik Pariksha in 2002.

Administrative Responsibilities

1. Chief Warden, Off Campus Boys Hostel, NIT Sikkim

2. Faculty In-Charge, Scholarship Section, NIT Sikkim

3. Member of Institute External Relations and Outreach Activity Committee

4. Member of Institute Alumni Affairs Cell

5. Acted as Hostel Warden, Off Campus Boys Hostel, NIT Sikkim, 2016-2017.

6. Acted as member of Examination Cell, NIT Sikkim, 2017-2019.

7. Acted as member of Procurement Committee under TEQIP III, 2017-2020.

8. Acted as member of Proctorial Board, 2016-2019.

9. Acted as committee member of 1st, 2nd, 3rd and 4th Annual Convocation, NIT Sikkim held on 2017, 2018, 2020 and 2022.

10. Acted as member of Cultural Activities, NIT Sikkim, 2021-2022.

11. Acted as Co-Coordinator of Workshop on Recent Trends in Thermo-Fluids (RTTF'21) held in the Dept. of Mechanical Engineering, NIT Sikkim, 2021.

Departmental Activities

1. Laboratory In-Charge: Fluid Mechanics Laboratory, ME Dept.

2. Convener of Departmental Time Table/Class Rooms/Load Distribution Committee, ME Dept.

3. Member of Departmental Undergraduate Committee (DUGC), ME Dept.

4. Member of Academic Performance Evaluation Committee (APEC), ME Dept.

5. Member of Departmental Students Grievance Cell, ME Dept.

6. Member of Departmental Admission Committee (DAC), ME Dept.

7. Member of Departmental Examination and Result Committee, ME Dept.

8. Member of Departmental Disciplinary Committee and Research Committee, ME Dept.

9. Faculty Advisor of B.Tech. 2019-23 Batch Students

10. Acted as member of Doctoral Guidance Committee of Mr. R. Lakshman, PhD Scholar, ME Dept., 2019-2022.

11. Acted as member of Departmental Research Committee, 2017-2019.

12. Acted as In-Charge of Strength of Materials Laboratory, 2021-2022.

13.Acted as In-Charge of Engineering Graphics Laboratory, 2018-2020.

Supervision of UG Projects

1. A numerical study of co-axial turbulent flow Mixing in a cylindrical duct with or without mass Bleeding, Lycius Kumar Ray, 2018 (Awarded)

2. Numerical analysis of laminar fluid flow in a Square duct with multiple side mass injection, Rajkumar Seervi, 2018 (Awarded)

3. Study of laminar flow through a square duct with side mass injection from bottom porous wall, Brijesh Suman, 2018 (Awarded)

4. Turbulent fluid flow analysis of annular and Central jet through a circular duct with side mass injection, Vikash Kumar, 2018 (Awarded)

5. Stability of an aircraft in ground effect, Vikash Kumar, 2019 (Awarded)

6. Study of aerofoil section, Rohit Kumar Raj, 2019, (Awarded)

7. Numerical analysis of three-dimensional laminar Fluid flow with presence of baffles, Seera Mahanti Rao, 2020, (Awarded)

8. Three-dimensional laminar fluid flow analysis with opposing laminar side jets, Rishabh Anand, 2020, (Awarded)

9. Preliminary design of an axial flow turbine and a Centrifugal compressor for a large turbocharger, Aditya Raj and Satyam Kumar, 2021, (Awarded)

10. Numerical study of turbulent fluid flow through a rectangular duct with baffles and side injection, Aditya Prakash Ghosh, Anil Kumar Prajapati, and Anand Prasad, 2022, (Awarded)

11. Experimental investigation of the effect of Geometric parameters on discharge coefficient of various notches, Gauri Kumar Mandal and Kushagra Anand, 2022 (Ongoing)

12. Flow analysis of a De-Laval nozzle, Ramineni Shaili, 2022 (Ongoing)

Workshops/Short Term Courses/Training Sessions Attended

1. Workshop on Pedagogy organized by NIT Sikkim during 12-May-2019 to 13-May-2019

2. Workshop on Contemporary Issues in Design and Manufacturing (CIDM21) organized by NIT Sikkim during 15-Mar-2021 to 19-Mar-2021

3. Fundamentals and Applications of Computational Fluid Dynamics in Fluid-Thermal Systems organized by NIT Silchar during 13-Mar-2021 to 17-Mar-2021

4. Faculty Development Program on Mentoring for Institutional Social Responsibility and Facilitation for Community Engagement Organized by Mahatma Gandhi National Council of Rural Education, Ministry of Education during 08-Feb-2022 to 12-Feb-2022

5. Workshop on Aerospace Technology: Theory and Practice organized by IIT Guwahati during 17-Feb-2021 to 21-Feb-2021.

6. Workshop on NEP 2020: Towards Holistic Education organized by NIT Sikkim during 01-Mar-2021 to 05-Mar-2021.

7. Workshop on Train the Teachers on Examination Reforms organized by BVB College of Engineering and Technology during 04-Dec-2020 to 07-Dec-2020.

8. Pedagogies of Online Teaching and Evaluation: Pre and Post COVID - 19 organized by IIT Roorkee during 07-Dec-2020 11-Dec-2020.

9. Workshop on CFD and Heat Transfer organized by IIT Bhubaneswar during 14-May-2012 to 18-May-2012.

10. Workshop on Welding Technology organized by Jadavpur University during 18-Jan-2013 to 19-Jan-2013.

11. Summer Vacation Training in Mechanical Engineering at Durgapur Steel Plant, Durgapur, West Bengal in 2007.

Invited Lectures

1. Resource Person during technical lecture in a Five-day National Webinar on "Rheological Behaviour of Fluid Flow and Energy Transfer", organized by the Department of Mechanical Engineering, Cooch Behar Government Engineering College held from 19th to 23rd June, 2021.

2. Resource Person during technical lecture in a National Webinar on "Using Ansys-Fluent for Analysing Fluid Flow Systems" organized by Department of Mechanical Engineering, GMIT, Kolkata held on 6th March 2022.