2024-03-29T06:34:07Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00007658
2023-01-16T03:53:11Z
320:321:322
Arrangement of Flame Structure by Reaction Progress Variable and Its Gradient in Unsteady Counterflow Premixed Flame
反応進行度とその勾配による非定常対向流予混合火炎の火炎構造の整理
林, 直樹
21683
HAYASHI, Naoki
21684
山下, 博史
21685
YAMASHITA, Hiroshi
21686
中村, 祐二
21687
NAKAMURA, Yuji
21688
山本, 和弘
21689
YAMAMOTO, Kazuhiro
21690
Premixed Flame
Unsteady Behavior
Counterflow
Reaction Progress Variable
Numerical Analysis
Dominant parameters in unsteady flame structure of methane/air counterflow premixed flame are investigated by numerical simulation with detailed chemical kinetics model. Two boundary conditions are used for comparison of the difference in the countered gas. One is the twin counterflow premixed flames, which is spouted premixed gas from both nozzles, and the other is the single counterflow premixed flame countered premixed gas and air. In order to investigate unsteady flame behavior, a sinusoidal fluctuation is added to the spout velocity. The influences of average velocity and the fluctuation frequency of the spout velocity on flame structure are examined. It is shown that the flame structure in the single-flame is governed by a reaction progress variable defined with mass fraction of oxygen, Co, q, and its gradient,∇Co,q evaluated at flame front. In the twin-flame,∇Co,q and the gradient of a progress variable defined with temperature evaluated at flame front, ∇Ct,q,dominate the flame structure.
journal article
日本機械学会
2006-01-25
application/pdf
日本機械学會論文集 B編
713
72
208
215
http://hdl.handle.net/2237/9363
0387-5016
https://nagoya.repo.nii.ac.jp/record/7658/files/JsMecEngB_72-713-208.pdf
jpn
http://ci.nii.ac.jp/naid/110004101780
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。