TY - JOUR
T1 - A Study on Turbulent Premixed Flames in a Closed Vessel by Analyzing Flame Photographs
AU - Hamamoto, Yoshisuke
AU - Izumi, Masaaki
AU - Tomita, Eiji
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1988
Y1 - 1988
N2 - The characteristics of roughness of a turbulent flame front in a disc-type combustion chamber were determined with high-speed schlieren photography and image analyzing. The correlations between the characteristics of roughness of the turbulent flame front and the turbulence characteristics or turbulent burning velocity were discussed. The main results are as follows: (1) the RMS value “a” and integral scale “Lf” of the flame front roughness are dependent on the turbulence intensity and integral spatial scale, (2) the power spectrum of the flame front roughness is similar to that of turbulent flow, and the microscale of the flame front roughness is close to the Taylor microscale of turbulence and (3) under the condition of very low turbulence, the ratio of turbulent burning velocity and laminar burning velocity, ST/SL, is proportional to [Formula Omitted].
AB - The characteristics of roughness of a turbulent flame front in a disc-type combustion chamber were determined with high-speed schlieren photography and image analyzing. The correlations between the characteristics of roughness of the turbulent flame front and the turbulence characteristics or turbulent burning velocity were discussed. The main results are as follows: (1) the RMS value “a” and integral scale “Lf” of the flame front roughness are dependent on the turbulence intensity and integral spatial scale, (2) the power spectrum of the flame front roughness is similar to that of turbulent flow, and the microscale of the flame front roughness is close to the Taylor microscale of turbulence and (3) under the condition of very low turbulence, the ratio of turbulent burning velocity and laminar burning velocity, ST/SL, is proportional to [Formula Omitted].
KW - Combustion
KW - Image Analyzing
KW - Roughness of Flame Front
KW - Turbulent Burning Velocity
KW - Turbulent Flame
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U2 - 10.1299/kikaib.54.2214
DO - 10.1299/kikaib.54.2214
M3 - Article
AN - SCOPUS:0024055859
VL - 54
SP - 2214
EP - 2218
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 504
ER -