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ID 31638
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別タイトル
PIV Measurement and Turbulence Scale in Turbulent Combustion
著者
山本 和弘
井上 聡
山下 博史
小沼 義昭
キーワード
Premixed Combustion
Flame
Turbulent Flow
Flow Measurements
PIV
NDC
技術・工学
抄録(英)
We have investigated a turbulent combustion by PIV (Particle Image Velocimetry) technique. Comparing with LDV data, the validity of PIV measurement has been confirmed. Especially, the conditions of sampling number and spatial resolution have been revealed to obtain reliable data by PIV. Based on the velocity fields in cold flow and combustion, the interaction between flame and flow has been discussed. It is observed that the flow field is changed by combustion and the turbulence is reduced. For determining statistic quantities such as mean velocity and rms of velocity fluctuation, the sampling number of 1000 is needed. Moreover, the velocity correlation coefficient is evaluated to obtain the integral length scale of the flow. For both cold flow and combustion, the estimated scale by PIV is very close to that by LDV based on the assumption of Taylor's hypothesis. Resultantly, the special resolution in this study is about 6 times smaller than the integral length scale.
掲載誌名
日本機械学會論文集. B編
71巻
711号
開始ページ
2741
終了ページ
2747
出版年月日
2005-11-25
出版者
一般社団法人日本機械学会
ISSN
0387-5016
NCID
言語
日本語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
社団法人日本機械学会
本文データは学協会の許諾に基づきCiNiiから複製したものである
関連情報URL(IsVersionOf)
http://ci.nii.ac.jp/naid/110005051729
部局名
工学研究科