This book presents an open platform to establish and share knowledge developed by engineers, scientists, and scholars from across the globe regarding numerous different applications of the simulation and modeling in the design procedure of products in several engineering fields. It discusses some of the latest simulation and modeling strategies, as well as certain extremely precise and smart software in treating complicated systems. The basic idea of the book is to manipulate the simplifying assumptions in a way that decreases the complexity of the model, but without changing the accuracy of the results. The book will serve as a great source of reference for a wide spectrum of readers.