High Accuracy Computing Methods

High Accuracy Computing Methods : Fluid Flows and Wave Phenomena

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This book presents topics in a single source format using unified spectral theory of computing. With developments of DNS and LES, practitioners are rediscovering waves as important in fluid flows, and capturing these numerically is central to high accuracy computing. Analysis of waves and its use in numerical methods in propagating energy at the right velocity (dispersion effects) and with right amplitude (dissipation) are essential. Most industrial codes using Reynolds-averaged Navier-Stokes equations with turbulence models cannot conceive of capturing waves. The new themes covered in this book are: * Correct error propagation analysis * Practical compact schemes and global analysis tool * Aliasing error and its alleviation * Spurious upstream propagating q-waves * Explanation of the Gibbs phenomenon * New 1D and 2D filters for LES/DNS without SGS modelling * Anisotropic skewed wave propagation * Development and analysis of dispersion relation preservation (DRP) schemes * Flow instabilities and wave propagation phenomenashow more

Product details

  • Electronic book text
  • Cambridge University Press (Virtual Publishing)
  • Cambridge, United Kingdom
  • English
  • 336 b/w illus. 9 tables
  • 1139151827
  • 9781139151825

Table of contents

Foreword; Preface; 1. Introduction to scientific computing; 2. Governing equations of fluid mechanics; 3. Classification of quasi-linear partial differential equations; 4. Waves and space-time dependence in computing; 5. Spatial and temporal discretizations of partial differential equations; 6. Solution methods for parabolic partial differential equations; 7. Solution methods for elliptic partial differential equations; 8. Solution of hyperbolic PDEs: signal and error propagation; 9. Curvilinear coordinates and grid generation; 10. Spectral analysis of numerical schemes and aliasing error; 11. Higher accuracy and higher order methods; 12. Introduction to finite volume and finite element methods; 13. Solution of Navier-Stokes equations; 14. Recent developments in discrete computing; Exercises; References.show more