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AuthorJohn, Volker. author
TitleLarge Eddy Simulation of Turbulent Incompressible Flows [electronic resource] : Analytical and Numerical Results for a Class of LES Models / by Volker John
ImprintBerlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer, 2004
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Descript XII, 261 p. 24 illus. online resource


Large eddy simulation (LES) seeks to simulate the large structures of a turbulent flow. This is the first monograph which considers LES from a mathematical point of view. It concentrates on LES models for which mathematical and numerical analysis is already available and on related LES models. Most of the available analysis is given in detail, the implementation of the LES models into a finite element code is described, the efficient solution of the discrete systems is discussed and numerical studies with the considered LES models are presented


1 Introduction -- 1.1 Short Remarks on the Nature and Importance of Turbulent Flows -- 1.2 Remarks on the Direct Numerical Simulation (DNS) and the k โ{128}{148} ? Model -- 1.3 Large Eddy Simulation (LES) -- 1.4 Contents of this Monograph -- 2 Mathematical Tools and Basic Notations -- 2.1 Function Spaces -- 2.2 Some Tools from Analysis and Functional Analysis -- 2.3 Convolution and Fourier Transform -- 2.4 Notations for Matrix-Vector Operations -- 3 The Space Averaged Navier-Stokes Equations and the Commutation Error -- 3.1 The Incompressible Navier-Stokes Equations -- 3.2 The Space Averaged Navier-Stokes Equations in the Case ? = ?d -- 3.3 The Space Averaged Navier-Stokes Equations in a Bounded Domain -- 3.4 The Gaussian Filter -- 3.5 Error Estimate of the Commutation Error Term in the Lp (?d) Norm -- 3.6 Error Estimate of the Commutation Error Term in the H-1 (?) Norm -- 3.7 Error Estimate for a Weak Form of the Commutation Error -- 4 LES Models Which are Based on Approximations in Wave Number Space -- 4.1 Eddy Viscosity Models -- 4.2 Modelling of the Large Scale and Cross Terms -- 4.3 Models for the Subgrid Scale Term -- 5 The Variational Formulation of the LES Models -- 5.1 The Weak Formulation of the Equations -- 5.2 Boundary Conditions for the LES Models -- 5.3 Function Spaces for the LES Models -- 6 Existence and Uniqueness of Solutions of the LES Models -- 6.1 The Smagorinsky Model -- 6.2 The Taylor LES Model -- 6.3 The Rational LES Model -- 7 Discretisation of the LES Models -- 7.1 Discretisation in Time by the Crank-Nicolson or the Fractional-Step ?-Scheme -- 7.2 The Variational Formulation and the Linearisation of the Time-Discrete Problem -- 7.3 The Discretisation in Space -- 7.4 Inf-Sup Stable Pairs of Finite Element Spaces -- 7.5 The Upwind Stabilisation for Lowest Order Non-Conforming Finite Elements -- 7.6 The Implementation of the Slip With Friction and Penetration With Resistance Boundary Condition -- 7.7 The Discretisation of the Auxiliary Problem in the Rational LES Model -- 7.8 The Computation of the Convolution in the Rational LES Model -- 7.9 The Evaluation of Integrals, Numerical Quadrature -- 8 Error Analysis of Finite Element Discretisations of the LES Models -- 8.1 The Smagorinsky Model -- 8.2 The Taylor LES Model -- 9 The Solution of the Linear Systems -- 9.1 The Fixed Point Iteration for the Solution of Linear Systems -- 9.2 Flexible GMRES (FGMRES) With Restart -- 9.3 The Coupled Multigrid Method -- 9.4 The Solution of the Auxiliary Problem in the Rational LES Model -- 10 A Numerical Study of a Necessary Condition for the Acceptability of LES Models -- 10.1 The Flow Through a Channel -- 10.2 The Failure of the Taylor LES Model -- 10.3 The Rational LES Model -- 10.4 Summary -- 11 A Numerical Study of the Approximation of Space Averaged Flow Fields by the Considered LES Models -- 11.1 A Mixing Layer Problem in Two Dimensions -- 11.2 A Mixing Layer Problem in Three Dimensions -- 12 Problems for Further Investigations -- 13 Notations -- References

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