Effects of Rotation on Tubular Flames in an Axisymmetric Flow Field.
Bibliographic Information
- Other Title
-
- 軸対称流れ場に形成される管状火炎に及ぼす回転強さの影響
- ジク タイショウ ナガレバ ニ ケイセイサレル カンジョウ カエン ニ オヨボ
Search this article
Abstract
Using an axisymmetric swirl-type burner with eight inlet slits, the effects of rotation on the structure and characteristics of tubular flames have been investigated for lean methane/air mixtures.Results show that with increasing intensity of rotation, (1) the flame diameter increases and the thickness of the luminous zone decreases, (2) the fuel concentration at extinction decreases, i. e., the stable region expands, (3) the radial temperature distribution becomes an M-shaped profile, and the maximum temperature Tf increases while the local minimum temperature Tc at the center decreases, and (4) the values of Tf and Tc vary in a complicated manner in the axial direction. These results are almost consistent with those of our previous experiment, and hence, it is confirmed that the flame structure and the flame characteristics are affected by rotation. As for these phenomena, several mechanisms such as pressure diffusion, radiative heat loss, viscous energy dissipation, and energy recirculation including diffusion of radical species have been proposed. The present experimental results provide the first, basic information on this practically important phenomenon, i. e., the extension of flammable range by rotation.
Journal
-
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
-
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 62 (600), 3185-3190, 1996
The Japan Society of Mechanical Engineers
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001205895394048
-
- NII Article ID
- 130004079877
- 110002403155
-
- NII Book ID
- AN00187441
-
- ISSN
- 18848346
- 03875016
- http://id.crossref.org/issn/00290270
-
- HANDLE
- 2237/9312
-
- NDL BIB ID
- 4019906
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed