Journal of Advanced Marine Engineering and Technology

  • 제23권4호
  • /
  • Pages.593-600
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  • 1999
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
권호 표지

화상처리기법에 의한 예혼합 난류전파화염의 구조해석

The Structural Analysis of Premixed Turbulent Propagating Flames Utilizing the Image Process Technique

  • 라진홍 (부경대학교 수산과학대학 실습선)
  • 발행 : 1999.07.01
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초록

The structure of premixed turbulent flames in constant volume vessel was investigated by using a laser tomography. The flame structure was visualized by passing a laser sheet with 0.2mm thick and 2 cm wide through the turbulent flames to obtain their 2-D images. From the obtained images islands of reactants as well as of products were found at least in the 2-D images when the turbu-lence intensity was above 0.4m/s. Moreover in order to obtain the characteristic flamelet thickness the light intensities of them were digitized and processed into three colors incorporating two appro-priate threshold values in the image analysis. As the result the averaged value of charactertistic flamelet thickness was found to be about two times compared to laminar one.

키워드

참고문헌

  1. Combust.Flame v.76 Combustion Regimes and the Straining of Turbulent Premixed Flames Abdel-Gayed, R.G.;Bradley, D.;Lung, F.K.-K.
  2. JSME Int. J., Series Ⅱ v.33 no.2 A Study on the Fine Structure of Propagating Turbulent Flames in Premixed Mixtures(An Analysis of the Schlieren Images Based on a Flame Structure Model) Kido, H.(et al.)
  3. SAE Trans. v.91 Turbulent Flame Structure in a Homogeneous-Charge Engine Smith, J.R.
  4. Trans. JSME v.56 no.521 A Study on the Structure of Premixed Turbulent Propagating Flames (An Investigation and Application of the Flame Plasma Potential Signals) Kido, H.(et al.)
  5. Trans. KSAE v.3 no.6 A Study on the Structure of Premixed Turbulent Propagating Flames Using a Microprobe Method Kim, J.H.;Ahn, S.K.
  6. Trans. KSME v.19 no.4 A Study on Effects of Reynolds Number and Damkohler Number in the Structure of Premixed Turbulent Flames Kim, J.H.;Ahn, S.K.
  7. SAE Trans. v.95 A 2-D Flame Visualization Technique Applied to the I.C. Engine Baritaud, T.A.;Green, R.M.
  8. SAE Paper, No. 881635 Three-Dimensional Visualization of Premixed-Charge Engine Flames : Islands of Reactants and Products ; Fractal Dimensions and Homogeneity Mantzaras, J.(et al.)
  9. Trans. JSME v.57 no.533 A Premixed Turbulent Flame Structure Model Having Reactant Islands and Fractal Flame Surfaces (1st Report, Formulation and Test of the Model) Kido, H.(et al.)
  10. Trans. KSPSE v.2 no.1 A Dicussion of Combustion Regime Based on Laser Tomography and Flame Structure Diagram Kim, J.H.