图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
流动显示和图像处理期刊
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.5

ISSN 打印: 1065-3090
ISSN 在线: 1940-4336

流动显示和图像处理期刊

DOI: 10.1615/JFlowVisImageProc.v11.i4.10
11 pages

AN OPTICAL METHOD FOR LOCAL EQUIVALENCE RATIO MEASUREMENTS APPLIED TO HYDRAULIC SIMULATION OF A RAMJET COMBUSTION CHAMBER

G. Heid
Office National d’Etudes et de Recherches Aerospatiales, Toulouse, France

ABSTRACT

Hydraulic simulation is a very useful tool to predict global performances of ramjet combustion chambers. Optical techniques can give a lot of information concerning the structure of the flow. In the special case of combustion chambers, it is possible to obtain a spatial repartition of local equivalence ratio and to predict combustion efficiency. This paper presents a ramjet research chamber with two lateral inlets specifically designed for being installed on a hydraulic test rig in order to obtain an experimental database for validating numerical codes. Visualizations are presented and an optical method using laser tomography, LIF and digital acquisition and processing is developed. Experimental procedures are detailed and results concerning local air and fuel flow rates, and local equivalence ratios or mixture fuel/air ratios are analyzed. In addition, an ONERA 's CFD code is presented and the calculated results are compared with experimental data with a rather good agreement.


Articles with similar content:

EXPERIMENTAL STUDY OF EQUIVALENCE RATIO INFLUENCE ON THERMO-ACOUSTIC INSTABILITY IN GAS TURBINES
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2009, issue
Nozar Akbari, Nasser Seraj Mehdizadeh, Reza Ebrahimi
EFFECT OF OXYGEN ENRICHMENT IN SPECTRAL THERMAL RADIATION IN AN UNCONFINED TURBULENT BLUFF-BODY FLAME
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2019, issue
A. Fatin, Hadi Bordbar, M. B. Barezban, M. Darbandi
Application of chemiluminescence imaging of OH-radical to flameless combustion of hydrogen containing, low-calorific gases
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2012, issue
A. Gambale, Paul Lybaert, D. Lupant
LIGHT MODEL METHOD FOR SIMULATION OF THE RADIANT HEAT FLUX DISTRIBUTION IN THE COMBUSTION CHAMBER
International Heat Transfer Conference 6, Vol.2, 1978, issue
Milos Gulic
KL measurements on a diluted, piloted, non-premixed ethylene jet flame at atmospheric pressure
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
E. Cenker, William L Roberts, S. Chowdhury