Physical insight into the accuracy of finely-resolved iLES in turbulent boundary layers

Research output: Contribution to journalArticle

This paper investigates the numerical accuracy of implicit Large Eddy Simulations (iLES) in relation to compressible turbulent boundary layers (TBL). iLES are conducted in conjunction with Monotonic Upstream-Centred Scheme for Conservation Laws (MUSCL) and Weighted Essentially Non-Oscillatory (WENO), ranging from 2nd to 9th-order. The accuracy effects are presented from a physical perspective showing skewness, flatness and anisotropy calculations, among others. The order of the scheme directly affects the physical representation of the TBL, especially the degree of asymmetry and anisotropy in the sub-layers of the TBL. The study concludes that high-order iLES can provide an accurate and detailed description of TBL directly comparable to available DNS and experimental results.
Original languageEnglish
Number of pages8
JournalComputers and Fluids
Early online date20 Jul 2017
DOIs
StateE-pub ahead of print - 20 Jul 2017

    Research areas

  • iLES, high-order, TBL, supersonic

Equipment

(1)
  1. ARCHIE-WeSt (UOSHPC)

    Equipment/facility: Facility

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