The vigorous progress made in the CFD field in the last few years mandates a review of new trends and directions. In this book, internationally known authors have been invited to review some of the significant contributions made in the last decade in a large number of branches of CFD. The coverage includes finite difference, finite volume and finite element methods for steady and unsteady, inviscid and viscous external and internal flows, spanning a wide range of Mach and Reynolds numbers.