This book encompasses the fundamentals as well as contemporary developments of numerical simulation associated with fluid dynamics in the natural environment and scientific applications. It also discusses numerical simulation in various industrial areas, like metallurgy, power engineering and building. Latest numerical methodologies, as well as software, the most precise and enhanced in treating the physical phenomena, are applied for the purpose of explanation of the investigated processes in terms of numbers. Since it plays a significant role in both industrial and theoretical research, this book regarding simulation of several physical procedures will serve as a useful tool for researchers as well as scientists, industrial engineers, applied mathematicians, and post-graduate students.