• Produktbild: Filtering Techniques for Turbulent Flow Simulation
  • Produktbild: Filtering Techniques for Turbulent Flow Simulation
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Filtering Techniques for Turbulent Flow Simulation

Fr. 137.00

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Beschreibung

Produktdetails

Einband

Taschenbuch

Erscheinungsdatum

16.01.1990

Verlag

Springer Berlin

Seitenzahl

397

Maße (L/B/H)

24.2/17/2.3 cm

Gewicht

702 g

Auflage

Softcover reprint of the original 1st ed. 1990

Sprache

Englisch

ISBN

978-3-540-52137-2

Beschreibung

Produktdetails

Einband

Taschenbuch

Erscheinungsdatum

16.01.1990

Verlag

Springer Berlin

Seitenzahl

397

Maße (L/B/H)

24.2/17/2.3 cm

Gewicht

702 g

Auflage

Softcover reprint of the original 1st ed. 1990

Sprache

Englisch

ISBN

978-3-540-52137-2

Herstelleradresse

Springer-Verlag KG
Sachsenplatz 4-6
1201 Wien
AT

Email: GPSR Kontakt

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  • Produktbild: Filtering Techniques for Turbulent Flow Simulation
  • Produktbild: Filtering Techniques for Turbulent Flow Simulation
  • 1 Introduction.- 1.1 Scope of the Study.- 1.2 Report Outline.- 2 Turbulence Modeling.- 2.1 The Nature of Turbulent Flows.- 2.2 Conventional Turbulence Modeling.- 2.3 Large Eddy Simulation.- 2.4 Summary.- 3 Two-Scale Filtering Approach Theory.- 3.1 Introduction.- 3.2 Space-Time Filtering Approach.- 3.3 The Leonard Approximation in the STF Context.- 3.4 The Approximation of the Cross Terms.- 3.5 The Asymptotic Nature of the Leonard Approximation.- 3.6 The Asymptotic Nature of the Approximation of the Cross Terms.- 3.7 Fourier Space Theory.- 3.8 Filtering Effect of Discrete Approximations.- 3.9 Closure Model.- 3.10 Summary.- 4 Three-Scale Filtering Approach Theory.- 4.1 Introduction.- 4.2 Three-Scale Approach.- 4.3 Macroscale Dynamics.- 4.4 Mesoscale Dynamics.- 4.5 Relationship between Two- and Three-Scale Approaches.- 4.6 Closure Model.- 4.7 Summary.- 5 Direct Simulations of Periodic Burgers’ Flow.- 5.1 Introduction.- 5.2 Burgers’ Equation as a Mathematical Model of Turbulence.- 5.3 Shock Development and Energy Equation for Free Burgers’ Flow.- 5.4 Design of Numerical Experiment for Free and Periodic Burgers’ Flow.- 5.5 Computation of Spectral Statistics.- 5.6 Filtering of Instantaneous Variables.- 5.7 Generation of Initial Conditions.- 5.8 Numerical Scheme.- 5.9 Numerical Stability Analysis.- 5.10 Results for Free and Periodic Burgers’ Flow.- 5.10.1 Statistical Significance and Spatial Resolution.- 5.10.2 Sensitivity to Time Step Magnitude.- 5.10.3 Time Filtering Effect.- 5.10.4 Velocity Fields.- 5.10.5 Spectral Dynamics and Energy Evolution.- 5.11 Forced and Periodic Burgers’ Problem.- 5.12 Generation of Random Forcing.- 5.13 Results for Forced and Periodic Burgers’ Flow.- 5.13.1 Statistical Significance and Spatial Resolution.- 5.13.2 Time Filtering Effect.- 5.13.3 Velocity Fields.- 5.13.4 Spectral Dynamics and Energy Evolution.- 5.14 Summary.- 6 Numerical Experiments with Two-Scale Filtering Approaches Applied to Periodic Burgers’ Flow.- 6.1 Introduction.- 6.2 LES Approach for Free Burgers’ Flow.- 6.3 STF Approach for Forced Burgers’ Flow.- 6.4 Relationship between LES and STF Approaches.- 6.5 Numerical Scheme.- 6.5.1 Accuracy Requirements.- 6.5.2 Quasi-Implicit Factored Time Stepping Scheme with Richardson Extrapolation.- 6.5.3 Quadratic Finite Element Spatial Discretization.- 6.5.4 Green’s Function Solution Algorithm.- 6.5.5 Accuracy Properties.- 6.6 Simulation of Space-Filtered (LS) Free Burgers’ Flow.- 6.6.1 Choice of Grid Size and Time Step.- 6.6.2 Calibration of Closure Models.- 6.6.3 LS Spectral Dynamics.- 6.7 Simulation of Space-Time Filtered (STF) Forced Burgers’ Flow.- 6.7.1 Choice of Grid Size and Time Step.- 6.7.2 Energy Evolution.- 6.7.3 STF Spectral Dynamics.- 6.7.4 Sensitivity Analyses.- 6.8 Summary.- 7 Numerical Experiments with Three-Scale Filtering Approach Applied to Periodic Burgers’ Flow.- 7.1 Introduction.- 7.2 Space-Filtered Macroscale Dynamics.- 7.3 Space-Filtered Mesoscale Dynamics.- 7.4 Numerical Scheme.- 7.5 Simulation of Space-Filtered (Free) Mesoscale Burgers’ Flow.- 7.5.1 Mesoscale Spectral Dynamics.- 7.5.2 Reconstruction of LS Spectral Statistics.- 7.6 Summary.- 8 Discussion, Conclusion and Recommendations.- 8.1 Conventional Averaging Procedures Versus Filtering.- 8.2 Discussion of Results and Summary of Contributions.- 8.3 Recommendations for Future Research.- Appendix A Implicit Factored — Quadratic Finite Element Formulation of Stf Forced Burgers’ Equation.- Appendix B Implicit Factored — Quadratic Finite Element Formulation of Les-Mesoscale Equation.- References.