The continual increase in computing capability has enabled applied mathematicians, engineers and scientists to achieve solutions to complex problems with ever-increasing accuracy and make significant progress in the solution of previously intractable problems. This trend is particularly significant in fluid mechanics, where computer simulation is now a significant element in flow analysis and scientific discovery over many areas of investigation. The main objective of the International Journal for Numerical Methods in Fluids is to provide a timely and readily accessible reference for those engaged in computer-aided design, engineering analysis and research in computational fluid dynamics. The flow regimes suitable for inclusion range from potential flow, through viscous flow (incompressible and compressible) to those problems in which turbulence is the dominant feature; non-continuum flows and fluids with complex rheology are also of interest. Methods for solving ancillary equations, such as transport, reaction and diffusion, are also quite relevant as are methods for multi-physics problems, such as fluid-structure interaction. The primary intention of the Journal is the dissemination of information relating to the development, refinement, and application of computer-based numerical techniques for solving problems in fluids. These methods include, but are not limited to, the Finite Difference, Finite Volume, Finite Element, Boundary Element and particle methods.