2004年
定容容器内燃料-空気混合気の燃焼に及ぼす旋回乱流場および層状燃料濃度場の影響(第2報,燃料濃度場および乱流場が燃焼特性に及ぼす影響
日本機械学会論文集 (B編),
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- ,
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- 巻
- 70
- 号
- 692
- 開始ページ
- 1092
- 終了ページ
- 1099
- 記述言語
- 日本語
- 掲載種別
- DOI
- 10.1299/kikaib.70.1092
A swirling flow and rich fuel concentration near the center were produced in a vessel by tangentially charging air and fuel injection. Propane was used as fuel. Fuel concentration distribution was measured with laser induced fluorescence (LIF) method using acetone as a tracer. It was confirmed that the center-rich stratified fuel concentration was produced. In order to estimate the pattern of the fuel concentration field, the Gaussian fitting method was applied to the equivalence ratio profile. Fuel distribution history obtained from LIF measurement agreed with the calculation result using axisymmetric diffusion equation. The initial stage of combustion was greatly affected by the fuel concentration distribution in the vicinity of the spark location. The stronger turbulence intensity accelerated combustion and main combustion became shorter under the same fuel distribution conditions.
- リンク情報
- ID情報
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- DOI : 10.1299/kikaib.70.1092
- ISSN : 0387-5016
- SCOPUS ID : 3142637319