Computational Fluid Mechanics or Dynamics (CFD) helps engineers build a computational model that represents a system or device that they want to study. Essential Computational Fluid Dynamics provides an introduction to the principles, basic foundation, and background of Computational Fluid Dynamic analysis. Taking a non-traditional approach, this deliberately concise text can serve as a textbook or as a reference. This book explains the mathematical and physical foundations of CFD, the formulation of CFD problems, basic principles of numerical approximation, and much more. Including problems, cases, examples, and a solutions manual, this text is essential for both students and professors.