Author
Nazzal, Ibrahim Thamer, Ertunç, Özgür
Publication Date
2017
Publication Place
-
J-STAGE
Subject
Premixed flame, Flame location, Diffuser, Turbulence, Flow separation
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1880-5566
Record ID
b315811e-9ff2-4c96-b316-cf38406d0db7
Library Location
Mechanical Engineering
Date
2017
Notes
TÜBİTAK ; Tikrit University ; Ozyegin University
Sample Text
This study focused on the dependency of the flame location of a premixed propane-air flame on turbulence intensity and length scale. The flame location was investigated using a diffuser-type combustor to show the response of the flame location to varying turbulence intensities and length scales without changing the mixture velocity, i.e., the thermal power. Combustion simulations were conducted using a coherent flame model within the framework of Reynolds-averaged Navier-Stokes equations under unsteady state conditions. The flame generally moved toward the combustor inlet with increases in turbulence intensity and length scale. The combustion and inlet turbulence caused a flow separation mainly downstream of the flame front. Consequently, the secondary flow structures influenced the flame topology and location.
DOI
10.1299/jtst.2017jtst0029
Cilt
12
