Mechanical engineering focuses on the applications of principles of physics and engineering; for the manufacturing and maintenance of mechanical systems. It is a multidisciplinary branch of engineering which has applications across a wide array of industries. This book contributes in theoretical and empirical understanding of the sub-disciplines and new frontiers of research in the field of mechanical engineering. It covers topics such as mechanics, fluid dynamics and thermodynamics with emphasis on methodologies and models to apprehend core concepts. This book is a great aid for students, researchers and academicians interested in this field.