¡¡Keynote Speakers

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Prof. A. Kandasamy,

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NATIONAL INSTITUTE OF TECHNOLOGY KARNATAKA, India

Dr. A. Kandasamy is a professor in the Department of Mathematical and Computational Sciences of National Institute of Technology Karnataka, Surathkal, India. He has done his Doctoral Research at Indian Institute of Technology, Bombay, India and he is a Post-Doctoral Fellow of Chuo University, Tokyo, Japan. His research interests are Computational Fluid Dynamics, Rheology, Tribology, Computational Techniques, Bio-informatics and Wireless Sensor Networks. Dr. Kandasamy has published more than 55 reviewed papers in the reputed international journals and international/national conference proceedings. He has given invited talks in various conferences at national and international levels including the ones held at Russia, U.K., Singapore, Malaysia, Indonesia and Hong Kong. He has guided till now six students at Doctoral level research work, more than 25 students at Master¡¯s level project work. He is having 25 years of teaching experience and 30 years of research experience. He is Member of Board of Studies of various universities and institutions, Reviewer for various International Journals of Elsevier, Springer, Taylor and Francis and other reputed publications. Dr. Kandasamy is a member of National Board of Accreditation of India. He is the life member of various Professional Societies at National as well as International levels. At present, he holds the position of Dean of Faculty Welfare at N.I.T.K.Surathkal, India.

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Speech Title: Rheodynamic Lubrication of an Externally Pressurized Thrust Bearing using Yield-Stress Fluids

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Abstract: Externally pressurized fluid film bearings have been the topic of numerous investigations over the last three decades. During this period not only has the fundamental understanding of the subject has developed, but also a variety of industrial applications of such bearings has encouraged the development of several design procedures. Considering its potential advantages including low viscous running friction, high load carrying capacity and high positional accuracy, externally pressurized thrust bearings are widely used in many applications such as machine tools, turbine generators, radio telescopes, radar antennas, etc,. Recently, the researchers intend to use non-Newtonian fluids as lubricants. Further, the interest has been increasing to use non-Newtonian fluids, in particular characterized by a yield-value such as Bingham, Casson and Herschel-Bulkley fluids. The continuing trend in lubrication industry emphasize that, in order to analyze the performances of the bearing, it is necessary to take into account the combined effects of fluid inertia and viscous forces of the lubricant. Hence, the study of lubricant inertia is assuming greater importance. Using the Herschel-Bulkley fluids as lubricants, the problems of different types of bearings have been investigated by many researchers. In the present work, the combined effects of fluid inertia and viscous forces on the bearing performances of an externally pressurized circular thrust bearing using Herchel ¨C Bulkley fluids with sinusoidal injection have been analyzed. Numerical solutions are obtained for the film pressure and the load carrying capacity for various values of Herschel ¨C Bulkley number, Reynolds number, power ¨C law index and time at different amplitudes of Sinusoidal feeding. The effects of fluid inertia forces and the non-Newtonian characteristics of the Herschel ¨C Bulkley lubricant on the bearing performance for different sinusoidal conditions have been discussed.

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Assoc. Prof. Mohammad Mansur Rahman,

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Sultan Qaboos University, Oman

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Dr. M. M. Rahman is an Associate Professor of Applied Mathematics in the Department of Mathematics and Statistics, Sultan Qaboos University, Muscat, Sultanate of Oman. His research interests include mathematical fluid mechanics, nano-fluidic phenomena, magnetohydrodynamics, heat and mass transfer, non-Newtonian fluids, transport in porous media, and bio-fluid flows.
Dr. Rahman has published more than 90 research papers. He has presented papers and given invited talks at several international conferences and renowned universities around the globe. He has supervised one Ph.D., one M.Phil., 11 M.Sc. and several undergraduate students. Currently, he is supervising one Post-Doc, two Ph.D. and two M.Sc. students. He obtained several grants as Principal Investigator from the Sultan Qaboos University and The Research Council of Oman. His total number of citation in Google Scholar is 1374 with h-index 24, i-index 38.
Dr. Rahman is the Editor-in-Chief of Mathematical Modelling of Engineering Problems (MMEP), Associate editor of Sultan Qaboos University Journal for Science (SQUJS), Editorial board members of American Journal of Heat and Mass Transfer (AJHMT), International Journal of Heat and Technology (IJHT), International Journal of Engineering, Science and Technology (IJEST), Research and Reviews in Materials Science and Chemistry (RRMSC) and potential reviewers for several international journals. Dr. Rahman is a life member of Bangladesh Mathematical Society, Mathematics Alumni of University of Dhaka, and member of Australasian Fluid Mechanics Society.

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Speech Title: Fundamental of Nanofluids and Dynamic Modeling

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Abstract: The term nanofluid is envisioned to describe a solid-fluid mixture which consists of nanoparticles and a base fluid, and which is one of the new challenges for thermo science. Nanotechnology plays an important role in the development of the 21st century modern devices for practical use. One very important aspect of nanotechnology concerns the heating, cooling and cleanliness of nano-devices because it is crucial for proper functionality. In this talk the fundamental of nanofluids, their evolution and applications in nanoscience and nanotechnology are explored. An advanced mathematical model is proposed to investigate the convective heat transfer mechanism in nanofluids along with deposition of nanoparticles due to thermophoresis and Brownian diffusion with different flow and thermal conditions. The mathematical model of the proposed nanofluid problem is simulated numerically. The results are interpreted physically and their implications are identified.
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