Verification and Validation of a Low-Mach-Number Large-Eddy Simulation Code against Manufactured Solutions and Experimental Results

Yingzu Liu, Kaidi Wan, Liang Li, Zhihua Wang, Kefa Cen

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Abstract

To investigate turbulent reacting flows, a low-Mach number large-eddy simulation (LES) code called ‘LESsCoal’ has been developed in our group. This code employs the Germano dynamic sub-grid scale (SGS) model and the steady flamelet/progress variable approach (SFPVA) on a stagger-structured grid, in both time and space. The method of manufactured solutions (MMS) is used to investigate the convergence and the order of accuracy of the code when no model is used. Finally, a Sandia non-reacting propane jet and Sandia Flame D are simulated to inspect the performance of the code under experimental setups. The results show that MMS is a promising tool for code verification and that the low-Mach-number LES code can accurately predict the non-reacting and reacting turbulent flows. The validated LES code can be used in numerical investigations on the turbulent combustion characteristics of new fuel gases in the future.
Original languageEnglish
Article number921
Pages (from-to)921
JournalEnergies
Volume11
Issue number4
DOIs
Publication statusPublished - 13 Apr 2018

Keywords

  • Code validation
  • Flame D
  • Flamelet
  • Low-Mach number large-eddy simulation (LES)
  • Method of manufactured solutions

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