Fluid dynamics is the branch of fluid mechanics that studies the flow of fluids. It is further divided into hydrodynamics which studies the liquids in motion and aerodynamics which studies the gases in motion. It is an upcoming field of science that has undergone rapid development over the past few decades. This discipline is applicable to a wide range of areas such as modeling fission weapon detonation, predicting weather patterns, calculating moments and forces on aircraft, traffic engineering, etc. This book elucidates new techniques and their applications in a multidisciplinary approach. Some of the diverse topics covered in this text address the varied branches that fall under this category. Through this book, we attempt to further enlighten the readers about the new concepts in this field. It will serve as a reference to a broad spectrum of readers including engineers and students.