Contents Contents Differential Equations in Engineering Mathematical Engineering, Manufacturing, and Management Sciences Series Editor Mangey Ram Professor, Assistant Dean (International Affairs), Department of Mathematics, Graphic Era University, Dehradun, India The aim of this new book series is to publish the research studies and articles that bring up the latest development and research applied to mathematics and its applications in the manufacturing and management sciences areas. Mathematical tool and techniques are the strength of engineer- ing sciences. They form the common foundation of all novel disciplines as engineering evolves and develops. The series will include a comprehensive range of applied mathematics and its application in engineering areas such as optimization techniques, mathematical modelling and simulation, stochastic processes and systems engineering, safety-critical system performance, system safety, system security, high assurance software architecture and design, mathematical modelling in environmental safety sciences, finite element methods, differential equations, reli- ability engineering, etc. Partial Differential Equations: An Introduction Nita H. Shah and Mrudul Y. Jani Linear Transformation Examples and Solutions Nita H. Shah and Urmila B. Chaudhari Matrix and Determinant Fundamentals and Applications Nita H. Shah and Foram A. Thakkar Non-Linear Programming A Basic Introduction Nita H. Shah and Poonam Prakash Mishra Applied Soft Computing and Embedded System Applications in Solar Energy Rupendra Kumar Pachauri, J. K. Pandey, Abhishek Sharma, Om Prakash Nautiyal, Mange Ram Differential Equations in Engineering Research and Applications Edited by Nupur Goyal, Piotr Kulczycki, and Mangey Ram Sustainability in Industry 4.0 Challenges and Remedies Edited by Shwetank Avikal, Amit Raj Singh, Mangey Ram Applied Mathematical Modeling and Analysis in Renewable Energy Edited by Manoj Sahni and Ritu Sahni For more information about this series, please visit: https: // www . rout ledge . com/ Mathe matic al- E nginee ring- Manuf actur ing-a nd- Ma nagem ent-S cienc es/ bo ok- se ries/ CRCME MMS Differential Equations in Engineering Research and Applications Edited by Nupur Goyal, Piotr Kulczycki, and Mangey Ram First edition published 2022 by CRC Press 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742 and by CRC Press 2 Park Square, Milton Park, Abingdon, Oxon, OX14 4RN © 2022 Nupur Goyal, Piotr Kulczycki, and Mangey Ram CRC Press is an imprint of Taylor & Francis Group, LLC Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. 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For works that are not available on CCC please contact mpkbookspermissions@ tandf. co. uk Trademark notice: Product or corporate names may be trademarks or registered trademarks and are used only for identification and explanation, without intent to infringe. Library of Congress Cataloging-in-Publication Data Names: Goyal, Nupur, editor. | Kulczycki, Piotr, editor. | Ram, Mangey, editor. Title: Differential equations in engineering : research and applications / edited by Nupur Goyal, Piotr Kulczycki, and Mangey Ram. Description: First edition. | Boca Raton, FL : CRC Press, 2022. | Series: Mathematical engineering, manufacturing, and management sciences | Includes bibliographical references and index. Identifiers: LCCN 2021011041 (print) | LCCN 2021011042 (ebook) | ISBN 9780367613129 (hbk) | ISBN 9780367613143 (pbk) | ISBN 9781003105145 (ebk) Subjects: LCSH: Engineering mathematics. | Differential equations. Classification: LCC TA347.D45 D45 2022 (print) | LCC TA347.D45 (ebook) | DDC 620.001/51535--dc23 LC record available at https://lccn.loc.gov/2021011041 LC ebook record available at https://lccn.loc.gov/2021011042 ISBN: 978-0-367-61312-9 (hbk) ISBN: 978-0-367-61314-3 (pbk) ISBN: 978-1-003-10514-5 (ebk) Typeset in Times by Deanta Global Publishing Services, Chennai, India Contents Preface......................................................................................................................vii Acknowledgments .....................................................................................................ix Editors .......................................................................................................................xi Contributors ...........................................................................................................xiii Chapter 1 Element-Free Galerkin Method for Computational Fracture Mechanics ..............................................................................1 Mohit Pant Chapter 2 Evaporative Capillary Instability of Swirling Fluid Layer with Mass Transfer .............................................................................37 Mukesh Kumar Awasthi, Rishi Asthana, and Ziya Uddin Chapter 3 Control Instruments of Regularized Problems Based on Mathematical Modeling of Structural Perturbations with Applications at the Nodes of 25-Bar Truss Systems ..........................55 Koumbe Mbock, Etoua Remy Magloire, and Ayissi Raoul Domingo Chapter 4 Numerical Simulation of Singularly Perturbed Differential Equation with Large Delay Using Exponential B-Spline Collocation Method ............................................................................77 Geeta Arora and Mandeep Kaur Vaid Chapter 5 Application of Differential Equations to Instability of Nanofluids ......95 Jyoti Sharma Chapter 6 Analysis of Prey–Predator Model ....................................................107 Purnima Pandit, Payal Singh, and Tanvi Patel Chapter 7 Incremental Harmonic Balance Method for Multi- Degree-of-Freedom System with Time-Delays ................................125 R.K. Mitra v vi Contents Chapter 8 Solution to the Dirac Equation .........................................................145 S.K. Pandey Chapter 9 Periodic Solution of a Nonlinear Economic Cycle Model with a Generic Investment Function ................................................155 Jun Zhao Chapter 10 Response Evolution of a Marine Riser in Random Sea Waves ........171 Haitao Zhu, Guoqian Geng, Yang Yu, and Lixin Xu Chapter 11 Solution of System of PDE Governed in Natural Convective Flow in a Rectangular Porous Cavity ...............................................187 P. Alam and S. Kapoor Index ......................................................................................................................207 Preface Creating mathematical models of real objects constitutes a fundamental aspect of modern science and various practical applications. The classical tool, especially in the mechanical and electrical engineering disciplines, is provided here by the theory of differential equations. The resulting formal apparatus is the basis of many practi- cal disciplines, e.g., optimal and robust control, and theory of chaos or dynamical systems. Other fields in which differential equations are widely used include broad areas of mathematics such as linear algebra, numerical methods, and many others. It is worth emphasizing the close, mutually inspiring connections between differential equations and physics. After mathematical statistics, differential equations are cur- rently the most important discipline in applied mathematics, especially in engineer- ing and economics, as well as recently in the natural sciences. They are of value to students and graduates in the above disciplines in recognizing and understanding the laws that govern the surrounding world. This book touches upon a number of specific aspects of the theory and practice of differential equations. Such a breadth of subject matter relates to a large degree to the fact that the fundamental problems of differential equations have already been sufficiently widely described in the subject literature. The scope of this book con- cerns both linear issues, which often have analytical solutions, and nonlinear ones, frequently supported by numerical methods. The following topics are covered in this monograph: • Element-free Galerkin methods in computational fracture mechanics. • Evaporative capillary instability of swirling fluid layer with mass transfer. • Control instruments of regularized problems based on mathematical mod- eling of structural perturbations with applications at the nodes of 25 bar truss systems. • Numerical simulation of singularly perturbed differential equations with large delays, using exponential B-spline collocation method. • Application of differential equations to understanding the instability of binary nanofluids. • Mathematical modeling and analysis of prey-predator models. • The incremental harmonic balance method for multiple degrees-of-freedom systems with time delays. • Solution to the Dirac equation. • Periodic solution of a nonlinear economic cycle model with a generic investment function. • Response evolution of a marine riser in random sea waves. • Solution of a system of partial differential equations governed by natural convective flow in a porous cavity. vii viii Preface At the end of each chapter there is a list of subject literature, facilitating further exploration of the individual topics. We wish the readers a successful study of the material presented, leading to new inspiration, a deepening understanding of the described concepts, and also fruitful applications to the contemporary challenges of science and practice. Dr. Nupur Goyal Prof. (D.Sc.) Piotr Kulczycki Prof. (Dr.) Mangey Ram Acknowledgments We express our sincere thanks to the team at CRC Press, Taylor & Francis Group for giving us this opportunity and for support during this project. Particular gratitude is due to Ms. Cindy Renee Carelli, Executive Editor, CRC Press, Taylor & Francis Group, for the excellent help provided by her to us in the approval for this book. We would also like to acknowledge the help from Ms. Erin Harris, Senior Editorial Assistant, CRC Press, Taylor & Francis Group. Nupur Goyal Piotr Kulczycki Mangey Ram ix