Titlebook: Large Eddy Simulation for Incompressible Flows; An Introduction Pierre Sagaut Book 20022nd edition Springer-Verlag Berlin Heidelberg 2002 E

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Statistical and Spectral Analysis of Turbulence, mechanisms and repercussions on some of their characteristics of interest to the engineer should be understood in order to be able to control them. The criteria for defining a turbulent flow are varied and nebulous because there is no true definition of turbulence. Among the criteria most often retained, we may mention [102]:

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Introduction,Computational Fluid Dynamics (CFD) is the study of fluids in flow by numerical simulation, and is a field advancing by leaps and bounds. The basic idea is to use appropriate algorithms to find solutions to the equations describing the fluid motion.

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,Application to Navier—Stokes Equations,This chapter is devoted to the derivation of the constitutive equations of the large-eddy simulation technique, which is to say the filtered Navier-Stokes equations. Our interest here is in the case of an incompressible viscous Newtonian fluid of uniform density and temperature.

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Numerical Solution: Interpretation and Problems,This chapter is devoted to analyzing certain practical aspects of large-eddy simulation.

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Hybrid RANS/LES Approaches,This chapter is devoted to the presentation of hybrid RANS/LES methods. The main motivation for hybridizing the two methods is to decrease the cost of the traditional large-eddy simulation method, which is large because of:

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Examples of Applications,This chapter gives a few examples of large-eddy simulation applications that are representative of their accomplishments in the sense that they correspond either to flows that are very frequently treated or to configurations that stretch the technique of today to its limits.

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