Accurate numerical integration of β-PDF for the flamelet approach

Yohsuke Matsushita, Weeratunge Malalasekera, Shota Akaotsu, Yoshiya Matsukawa, Hideyuki Aoki

研究成果: Article査読

抄録

When turbulent combustion simulations are performed using the flamelet approach, which indirectly considers the detailed chemical reaction mechanism, the probability density function (PDF) gets applied to statistical distributions for turbulent fluctuations in the mixture fraction that are modeled using the Reynolds-averaged Navier-Stokes or the large eddy simulation. In this case, the so-called “presumed PDF”-i.e., one in which the PDF is assumed and the flamelet table is constructed in advance-is generally employed, and the β-function is widely used for the PDF. This study investigated numerical integration for the equation with the β-function and examined the appropriate method. We succeeded in establishing the optimum value of the parameter for the integration interval and determining the appropriate numerical integration method.

本文言語English
ページ(範囲)494-497
ページ数4
ジャーナルJOURNAL of CHEMICAL ENGINEERING of JAPAN
53
9
DOI
出版ステータスPublished - 2020

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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