Prof. Gautam Biswas is the Director of Indian Institute of Technology Guwahati. Earlier he was the Director of CSIR-Central Mechanical Research Institute (CMERI) Durgapur-713209. Prof. Biswas was also the Founder Director of Academy of Scientific and Innovative Research (AcSIR), New Delhi – 110 001Before coming to CSIR, Prof. Gautam Biswas was the occupant of Gurmukh D. and Veena M. Mehta Endowed Chair in Mechanical Engineering at the Indian Institute of Technology Kanpur. He became a full Professor at the Indian Institute of Technology Kanpur in the year 1995. Prof. Biswas was awarded J.C. Bose National Fellowship in the year 2011. Prof. Biswas is a Fellow of the American Society of Mechanical Engineers (ASME). Prof Biswas is a Fellow of the all three major science academies of the country, such as, the Indian National Science Academy (INSA), New Delhi, the Indian Academy of Sciences (Bangalore) and the National Academy of Sciences India (Allahabad). He is a Fellow of the Indian National Academy of Engineering (INAE) and Institution of Engineers India (IEI).Prof. Biswas completed his Baccalaureate in Mechanical Engineering from Calcutta University (BESU, Shibpur) in 1979. In the year 2013, he was bestowed with the Distinguish Alumni Award of BESU (Bengal Engieering and Science University) by the Hon’ble President of India. He completed his MTech and PhD from the Indian Institute of Technology Kharagpur in 1981 and 1985 respectively. He was an Alexander von Humboldt fellow in Germany and JSPS Invited fellow in Japan.
Significant Research Contributions
The research group of Biswas at IIT Kanpur identified the phenomenon of Rayleigh-Taylor Instability during the bubble formation in film boiling. This was a significant addition to the classical theory, based on Taylor Helmholtz instability. Some significant contribution related to bubble formation in film boiling are:
G. Tomar, G. Biswas, A. Sharma and A. Agrawal, Numerical Simulation of Bubble Growth in Film Boiling Using CLSVOF Method, Physics of Fluids, Vol. 17, 112103, (2005).
G. Tomar, G. Biswas, A. Sharma and S.W.J. Welch, Multi-mode Analysis of Bubble Growth in Saturated Film Boiling, Physics of Fluids, Vol. 20, 092101, (2008).
G. Tomar, G. Biswas, A. Sharma and S.W.J. Welch, Influence of Electric Field on Saturated Film Boiling, Physics of Fluids, Vol. 21, 032107-1 – 032107-8 (2009).
Similarly contribution of the research group of Prof. Biswas in understanding the dynamics of falling drops on a liquid surface is echoed through some cutting edge publications:
B. Ray, G. Biswas and A. Sharma, Generation of secondary droplets in coalescence of a drop at a liquid/ liquid interface, Journal of Fluid Mechanics, Vol. 655, pp. 72-104, (2010)
B. Ray, G. Biswas and A. Sharma, Bubble pinch-off and scaling during liquid drop impact on liquid pool, Physics of Fluids, Vol. 24, pp. 082108-1 – 082108-11, (2012)
The research group of Prof. Biswas successfully performed Large Eddy Simulation (LES) of Turbulent Flows. Their insightful analysis of impinging jet and bluff body flows have been admired by a large number of researchers across the world.
T. Cziesla, G. Biswas, H. Chattopadhyay and N.K. Mitra, Large-Eddy Simulation of Flow and Heat Transfer in an Impinging Slot Jet, Int. J. Heat and Fluid Flow, Vol. 22, pp. 500-508, (2001).
Y. Srinivas, G. Biswas, A.S. Parihar and R. Ranjan, Large-Eddy Simulation of High Reynolds Number Turbulent Flow Past a Square Cylinder, Journal of Engineering Mechanics (ASCE), Vol. 132, pp. 327-335, (2006).
Spiral casing of the Hydraulic Turbines is a very critical component of Hydro-Power Generating system. The geometry is extremely complex and flow conditions are difficult to handle. The research group of Prof. Biswas developed an extremely efficient tool for analysis of the performance of hydraulic turbines. The work was linked to the R&D activities at BHEL Bhopal:
P.K. Maji and G. Biswas, Three-dimensional Analysis of Flow in the Spiral Casing of a Reaction Turbine using a Differently Weighted Petrov- Galerkin Method, Computer Methods in Applied Mechanics and Engineering, Vol. 167/ 1-2, pp 167-190, (1998).
P.K. Maji and G. Biswas, Analysis of Flow in the Spiral Casing Using a Streamline Upwind Petrov- Galerkin Method, International Journal for Numerical Methods in Engineering, Vol. 45, pp. 147-174, (1999).
The spallation target module is a key component of Accelerator Driven Subcritical System (ADSS). The thermal hydraulics related to the design of the spallation target module of an ADSS was investigated by the research group of Prof. Biswas. Some insightful contributions are:
K. Arul Prakash, G. Biswas and B.V. Rathish Kumar, Thermal Hydraulics of the Spallation Target Module of an Accelerator Driven Sub-critical System: A Numerical Study, International Journal of Heat and Mass Transfer, Vol. 49, pp. 4633-4652, (2006).
K. Arul Prakash, G. Biswas and B.V. Rathish Kumar, Numerical Prediction of Fluid Flow and Heat Transfer in the Target System of an Axisymmetric Accelerator Driven Subcritical System, Journal of Heat Transfer (ASME), Vol. 129, pp. 582-588, (2007).
The research group of Prof. Biswas made significant contribution in the area of Flow Past Bluff Bodies. Some notable contributions are:
A. K. Saha, G. Biswas, and K. Muralidhar, Three-dimensional Study of Flow Past a Square Cylinder at Low Reynolds Numbers, Int. J. Heat and Fluid Flow, Vol. 24, pp. 54-66, (2003).
S. Sen, S. Mittal and G. Biswas, Steady Separated Flow Past a Circular Cylinder at Low Reynolds Numbers, Journal of Fluid Mechanics, Vol. 620, pp. 89-119, (2009).
G. Biswas and S. Sarkar, Effect of Thermal Buoyancy on Vortex Shedding Past a Circular Cylinder in Cross Flow at Low Reynolds Numbers, International Journal of Heat and Mass Transfer, Vol. 52, pp. 1897-1912, (2009).
Other Major Contributions at IIT Kanpur
Prof. Gautam Biswas set up the Computational Fluid Dynamics (CFD) Lab in the Mechanical Engineering Department of IIT Kanpur in the year 1990. The lab has produced a large number PhDs.Prof. Gautam Biswas was the Convener of High Performance Computing (HPC) initiative at IIT Kanpur. An Interdisciplinary research group was formed on High Performance Computing drawing faculty from various Departments. The group was finally successful in obtaining a special grant from DST to set up the HPC Centre.
Prof. Gautam Biswas was the Dean of Academic Affairs for three years since 2003.
Contributions in forming AcSIR:
DG-CSIR’s vision was to set up Academy of Scientific and Innovative Research (AcSIR) in order to introduce deep routed research culture in CSIR. The thirty seven laboratories and three centers of CSIR, distributed all over the country, are connected to the central office of AcSIR at Delhi based on hub-and-spokes model. The Academy of Scientific & Innovative Research (AcSIR) has adopted the mandate to create and train some of the best of tomorrow’s Science &Technology leaders through a combination of innovative and novel curricula, pedagogy and evaluation system. Together with Dr. Nagesh Iyer, Director of CSIR-SERC, Prof. Biswas contributed enormously to start the interim Academy and set up the academic frame work by January 2011. DG-CSIR steered the AcSIR bill through Parliament in September 2011. AcSIR has been formalized by an Act of Parliament, the Academy of Scientific Innovative Research Act, 2011 vide The Gazette of India No.15 dated February 7, 2012 and notified on April 3, 2012. Today AcSIR is an Institute of National Importance. Prof. Gautam Biswas was the first chairman of the Academic Senate. The Senate comprises of members with highest level of academic excellence and recognition from across the CSIR laboratories and from the top tier academic bodies of India.