The book provides an elementary tutorial presentation on computational fluid dynamics (CFD), emphasizing the fundamentals and surveying a variety of solution techniques whose applications range from low speed incompressible flow to hypersonic flow. It is aimed at persons who have little or no experience in this field, both recent graduates as well as professional engineers, and will provide an insight to the philosophy and power of CFD, an understanding of the mathematical nature of the fluid dynamics equations, and a familiarity with various solution techniques. For the third edition the text has been revised and updated.