280 0

분자확산이 난류 비예혼합 화염구조에 미치는 영향 해석

Title
분자확산이 난류 비예혼합 화염구조에 미치는 영향 해석
Other Titles
Molecular Transport Effects on Structure of Turbulent Piloted Non-Premixed Flames
Author
김용모
Keywords
Multi-environment PDF; DQMOM; Piloted flames; Sandia Flame-E; molecular transport
Issue Date
2015-05
Publisher
한국연소학회
Citation
제50회 춘계학술대회 KOSCO SYMPOSIUM 초록집, 2015.5, 165-166
Abstract
In RANS based turbulent non-premixed flame simulation, the effects of molecular transport are usually neglected. However the molecular transport has a significant effect on the prediction of the upstream mixing layer between the coflow and the piloted stream where the turbulence level is weak. In present study, the multi-environment probability density function model has beenapplied to simulate the turbulent piloted non-premixed flames. The direct quadrature method of moments (DQMOM) has been adopted to solve the transport PDF equation due to its computational efficiency and robustness. The IEM mixing model is employed to represent the mixing process and the chemical mechanism is based on Gri 3.0 mechanism. To account for the molecular transport, the scalar mixing frequency is modified. Numerical results obtained in this study are precisely compared with experimental data in terms of unconditional and conditional means for scalar fields.
URI
http://www.dbpia.co.kr/Article/NODE06361907http://hdl.handle.net/20.500.11754/24547
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE