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Papers in this group

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  1. This paper traces the development of Computational Fluid Dynamics (CFD), from its beginnings in the second half of the 20th Century to the present time with special emphasis on the evolution of the market for commercial codes. A discussion is…
  2. In the present study, the possibility of performing cheap and accurate LES computations using unstructured grids on complex geometries has been examined. The test case considered is a turbulent flow around a thin controlled diffusion airfoil at low…
  3. This paper describes a new nonlinear eddy-viscosity model of turbulence designed with a view to predicting flow far from equilibrium, including transition. The scheme follows earlier UMIST practice in adopting a cubic relation between the stress and…
  4. In an effort to better understand landing-gear noise sources, we have been examining a simplified configura- tion that still maintains some of the salient features of landing-gear flow fields. In particular, tandem cylinders have been studied…
  5. Scale-Adaptive Simulation (SAS) allows the simulation of unsteady flows with both RANS and LES content in a single model environment. As SAS formulations use the von Karman length scale as a second external scale, they can automatically adjust to…
  6. A new Eddy viscosity model is proposed to include stress–strain lag effects in the modelling of unsteady mean flows. A transport equa- tion for the lag parameter, hereby denoted Cas, is derived from a full Reynolds stress model (RSM), to be solved…
  7. The flow around a trailing edge is computed with a new hybrid method designed to split the influences of the averaged and instantaneous velocity fields. The model is first tested on channel flows at different Reynolds numbers and coarse meshes…
  8. The control of a separated flow over a wall-mounted hump, by means of two-dimensional zero efflux perturbations, was studied experimentally in order to generate a data set for a workshop aimed at validating CFD turbulence models. Part 1 of this…

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