Exploring the Computational Hub of Books with Prof. Snehashish Chakraverty
Prof. Snehashish Chakraverty has been a dedicated Higher Administrative Grade (HAG) professor and researcher at the Department of Mathematics (Applied Mathematics Group) at the National Institute of Technology, Rourkela. The author of 21 books and 372 research papers (in Journals and conferences) to date, his research interests include mathematical modelling, machine intelligence, uncertainty modelling, numerical analysis, and differential equations.
Having done his PhD in Mathematics and M. Phil in Computer Applications from IIT Roorkee, Prof. Snehashish Chakraverty did his post-doctoral research at the Institute of Sound and Vibration Research (ISVR), University of Southampton, U.K. and at faculty of Engineering and Computer Science, Concordia University, Canada. He was also a visiting professor at Concordia and McGill universities, Canada, and visiting professor at the University of Johannesburg, South Africa. Prof. Snehashish Chakraverty is also a recipient of various awards viz. the Indian Science Congress Association's Platinum Jubilee Lecture Award, CSIR Young Scientist, BOYSCAST, INSA International Bilateral Exchange awards, etc. to name a few among others.
Primarily, his research focuses on the application of numerical modelling to a broad range of problems, the essence of which has been widely published in both books and peer-reviewed journals. To have an outlook on the publication of his recent books, Monday Morning went ahead for a tete-a-tete with Prof. Snehashish Chakraverty on several issues pertaining to his research, academia, and the inspiration behind them.
Monday Morning (MM): Your recent book "Mathematical methods in interdisciplinary sciences" was released on 2nd June this year. Share in brief about what the book deals with. What are the benefits of the book to the scientific community?
Prof. Snehashish Chakraverty (SC): It is a recent book published by Wiley. I am an editor of the book. Different authors from different countries have contributed to it along with my contribution to 6 chapters with my coauthors (my PhD students). It's related to various science and engineering problems where mathematical tools along with soft computing methods viz. fuzzy and neural network are being used over here. As a whole, it is a very different application of Mathematics in various science and engineering problems. Representation of a systematic treatment of fuzzy fractional differential equations as well as newly developed computational methods to model uncertain physical problems and computational techniques needed to model and solve uncertainty also forms a major crux of Prof. SnehashishChakraverty'sother books. He goes on to share his experience while designing the book titled, ‘Fuzzy Arbitrary Order System: Fuzzy Fractional Differential Equations and Applications, co-authored by Smita Tapaswini and Diptiranjan Behera.
Published by Wiley again, the book consists of fractional differential equations where the order of the differential is a non-integer. We have added ‘fuzziness’ of the uncertainty in the problems. Here, the coefficients, the boundary/initial conditions, etc. are uncertain. This has been our main aim and different application problems are also provided in the book.
MM: You and Karan Kumar Pradhan have authored two books, "Vibration of Functionally Graded Beams and Plates" and " Computational Structural Mechanics: Static and Dynamic Behaviour." How did the book come up?
Prof. Snehashish Chakraverty:
Mostly, all the co-authors of my books are my Ph.D. students. Karan Kumar Pradhan has completed his Ph.D. and is currently working in a university. Coming to the issue of the book- Beams and Plates are being studied by civil engineering, mechanical engineering, aerospace engineering, and such domains. They all require structural analysis because they have to deal with structures and their application problems. Functionally Graded(FG) beams and plates draw inspiration therefore Astronaut Kalpana Chawla blasts off to space and there was an accident due to the damage caused by temperature difference to the shuttle. As a result, the structure fails. A Functionally Graded element comes as help over such cases and people throughout the world are using this material application nowadays. It may have2-3 materials in a composite like steel, ceramic- where the intermediate material may be steel between ceramic. Not only does it withstand temperature but also deals better with vibrations. Here, we have given various problems with vibrations in beams and plates when the Functionally Graded materials are embedded in it.
Numerically efficient computational techniques to analyze vibration problems associated with FG beams and plates are presented in an application-oriented manner, linking the research to its importance in fields such as aerospace, nuclear power, and automotive engineering. Whereas the computational structural mechanics provides a cutting-edge treatment of functionally graded materials and the computational methods and solutions of FG static and vibration problems of beams and plates using the Rayleigh-Ritz method and others, static and dynamic issues related to the behaviour of FG rectangular, elliptic, skew and annular plates.
MM: Dealing with an effective way of investigating problems involving uncertainty using computational modelling, you, along with Sukanta Nayak, designed the book, "Interval Finite Element Method with MATLAB." Share with us how you came up with dealing with the problems and finding out concepts to obtain a result.
SC: The publisher is Elsevier. The finite Element Method is being used around the world for a variety of problems. If you take any question, uncertainty comes into the picture. Uncertainty is again of various types such as Interval, fuzzy, stochastic, etc. This stochastic or random uncertainty is being used when we have plenty of experimental data and then we can have different distributions depending on the data. In some cases, there isn't a large amount of data. In that case, Fuzzy and Interval uncertainty is being used. So, the finite element is a versatile method where we solve the problem depending upon the domain of the structure of the problem. There we divide the domain into different elements and solve using standard procedures. Finite Element is well known throughout the world. Here, we have added Interval for the uncertainty in the boundary condition or the coefficients and the variables in terms of the Interval. In the book, we have given small program modules so that readers can directly use those to develop their methods and solve challenging problems.
MM: How were you dealing with the responsibilities when you served as the Editor-in-Chief of the International Journal of Fuzzy Computation and Modelling?
SC: I'm the founding editor-in-chief of this journal, and it is published by Interscience. Various authors submit their papers and then we review those through well-known and expert reviewers. Out of 3 reviews, if at least two reviews turn out to be positive, the paper is accepted! We have an excellent editorial board and associated editors, an editorial assistant who also happens to be my PhD student. We work as a team. When a paper arrives and if it's related directly to my expertise, I handle that paper. In one year, we publish two issues. It depends on the publisher as well. They take charge after the paper is being accepted. They regularize, put into the sequence, and revert to check the outcome. Finally, it is being published. We have a stepwise procedure to research in general.
MM: The versatility of yours covering different topics attracts a lot of reader-base. "Static and Dynamic Problems Of Nanobeams And Nanoplates" is just an example to site. What makes you so diverse yet so effective about the research to put a book?
I have worked for 19 years in CSIR-CBRI Roorkee. So I have researched a variety of problems where mathematical modeling is being used to solve them and as you might realize, without mathematical modeling, most of the field of science and engineering may not be studied with great depth. To write such a diverse range of books I collaborate with my Ph.D students and eventually, we study more about a particular topic and try to develop our expertise and then proceed with framing our research work into the books.
MM: "Modelling and Simulation of Nanofluid Flow Problems (Synthesis Lectures on Mechanical Engineering)" is also a recent addition to the hub of your books. What is the major terminology that the book deals with?
SC: The field of fluid dynamics is well known to everybody now but this book deals with fluid with nano-sized particles and so this field is very challenging as the differential equations used therein will change for these types of particles. So in this book, we explained different types of mathematical methods required for those kinds of problems.
MM: What is the progress on "computational wave dynamics" which is expected to be released on 1st March 2021. What algorithms and procedures does it deal with?
SC: This book deals with the tsunami waves and ocean waves. The problem with these kinds of waves is that they are very complex to be studied and can’t be readily solved by conventional mathematical methods. Given the testing times before us, during the lockdown, obviously, everything is unorganized and it is difficult to proceed with our research works in these restricted conditions. Also, most of my PhD students are unavailable on the campus and that is definitely hindering our projects but we still aim to complete the book by the stipulated time.
MM: How important do you feel it is to keep learning about new technologies at this stage of your career?
SC: I have always been keen on exploring new ideas and technology. My areas of interest have been inclined towards mathematical computation and stimulation but with the modern technology coming in the blend of subjects like mathematics along with data analytics and machine learning is very beneficial. So yes I have always enjoyed learning about the new technology and will continue to do so.
MM: What would be your final message to our readers?
Prof. Snehashish Chakraverty:
I am of the opinion that we should not pressurize any student to take up a particular branch or a subject because I have seen students approach me without even knowing the areas of their interest/choice and want to join a particular teacher/subject. I think that should not be. One should always go after seeking knowledge in the areas of his/her interest. In particular, the research students should have first read and survey their area, find gaps and then they should go for solving the problems. Here the supervisors have a great role. For me, usually for the first paper of a student, I correct around 6 to 8 times so that he/she learns how to do this job. Actually, it is difficult to give a message for this as everybody is different and, approach, as well as environment of working, also differ. One should have faith, be honest, and do work to enjoy. Last but not the least, I fully enjoy working with students whether in academics, in SAC, and other student activities or with a cup of tea with them in our NITR canteens.
The contribution of Prof. Snehashish Chakraverty in the field of books, being versatile with research in various domains speaks for itself. Besides, he has also organized a good number of international and national conferences, workshops, and training programs pertaining to his field of study that is reflected in his works. With present research including Differential Equations (Ordinary, Partial and Fractional), Numerical Analysis and Computational Methods, Structural Dynamics (FGM, Nano) and Fluid Dynamics, Mathematical and Uncertainty Modeling, Soft Computing and Machine Intelligence (Artificial Neural Network, Fuzzy, Interval, and Affine Computations), Prof. Snehashish Chakraverty is working on several such books that are yet to be published.
Team Monday Morning congratulates Prof. Snehashish Chakraverty on his success and wishes him the very best for his future projects ahead!