2024-03-29T09:35:06Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00017734
2023-01-16T04:05:11Z
320:321:322
ランキン渦流中での予混合火炎伝播に与える渦核半径の影響に関する数値解析
A Numerical Study on Effect of Vortex Core Radius on Premixed Flame Propagation in Rankin Vortex Flow
近藤, 周司
山下, 博史
篠田, 昌久
山本, 和弘
KONDOU, Shuuji
YAMASHITA, Hiroshi
SHINODA, Masahisa
YAMAMOTO, Kazuhiro
open access
Premixed Flame
Flame Propagation
Swirling Flow
Vortex Bursting
Rankin Vortex
Vortex Core Radius
Numerical Analysis
In order to clarify the effects of vortex core radius on the vortex bursting phenomenon, the premixed flame propagation in swirling flow has been examined by the numerical calculation for various vortex core radii. In this calculation, the flame is fixed in the computational domain by adding an axial flow to the unburnt premixed gas so as to obtain the steady state propagation characteristics. The obtained results are as follows: The obtained relationships between the maximum circumferential velocity and the flame propagation speed or the flame region radius agree with the previous studies. Moreover, the effect of vortex core radius on the flame propagation speed and flame shape are clarified. When the vortex core radius is less than 7 mm, the flame propagation speed is dependent on both the angular speed and the vortex core radius. On the other hand, when the vortex core radius is more than 7 mm, the flame propagation speed is directly proportionate to the angular speed not but the maximum circumferential speed, and it is not dependent on the vortex core radius.
一般社団法人 日本機械学会
2008
jpn
journal article
AM
http://hdl.handle.net/2237/19800
https://nagoya.repo.nii.ac.jp/records/17734
https://doi.org/10.1299/kikaib.74.2387
0387-5016
日本機械学会論文集(B)
74
747
2387
2392
https://nagoya.repo.nii.ac.jp/record/17734/files/67.pdf
application/pdf
1.1 MB
2018-02-21