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Measurements of Turbulent Flame Speed and Integral Length Scales in a Lean Stationary Premixed Flame

Författare

Summary, in English

Turbulent premixed natural gas - air flame velocities have

been measured in a stationary axi-symmetric burner using LDA. The flame was stabilized by letting the flow retard toward a stagnation plate downstream of the burner exit. Turbulence was generated by letting the flow pass through a plate with drilled holes. Three different hole diameters were used, 3, 6 and 10 mm, in order to achieve different turbulent length scales. Turbulent integral length scales were measured using two-point LDA and the stretching in terms of the Karlovitz number could be estimated from these measurements. The results support previous studies indicating that stretching reduces the flame speed.

Publiceringsår

1998

Språk

Engelska

Publikation/Tidskrift/Serie

SAE technical paper series

Volym

107

Issue

SAE Technical Paper 981050

Dokumenttyp

Artikel i tidskrift

Förlag

Society of Automotive Engineers

Ämne

  • Other Mechanical Engineering
  • Energy Engineering

Nyckelord

  • Combustion
  • Premixed Flame
  • Turbulent Flame Speed

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0148-7191