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Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow
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Large eddy simulation using high-resolution and high-order methods.

D Drikakis1, M Hahn, A Mosedale

  • 1Department of Aerospace Sciences, Fluid Mechanics and Computational Science Group, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK. d.drikakis@cranfield.ac.uk

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|June 18, 2009
PubMed
Summary
This summary is machine-generated.

Accurate large eddy simulation (LES) methods are crucial for complex flow analysis due to computational limits. This study reviews high-resolution LES techniques and their application to turbulent flows, offering efficient, industrially viable solutions.

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Area of Science:

  • Computational Fluid Dynamics
  • Turbulence Modeling

Background:

  • Direct numerical simulation (DNS) is computationally prohibitive for complex flows.
  • Development of efficient and accurate Large Eddy Simulation (LES) methods is essential for industrial applications.
  • High-resolution numerical schemes are needed to accurately capture flow physics.

Purpose of the Study:

  • To review recent advancements in LES methods for turbulent flows.
  • To present findings on leading-order dissipation rates in high-resolution schemes.
  • To evaluate the performance of various numerical schemes in implicit LES.

Main Methods:

  • Review of existing literature on LES and high-resolution methods.
  • Application of implicit LES to a range of flow problems.
  • Implementation and testing of numerical schemes from second-order to ninth-order accuracy.
  • Analysis of leading-order dissipation rates.

Main Results:

  • Implicit LES with various schemes was applied to diverse flow scenarios.
  • Performance of monotone upstream-centered schemes and weighted essentially non-oscillatory schemes was assessed.
  • Findings on the leading-order dissipation rate associated with high-resolution methods were reviewed.
  • Improvements to standard LES schemes for highly turbulent flows were discussed.

Conclusions:

  • High-resolution LES methods offer a viable alternative to DNS for complex flows.
  • The choice of numerical scheme significantly impacts LES accuracy and efficiency.
  • Further development of LES techniques is crucial for advancing computational fluid dynamics.