Numerical Simulation on the Combustion Characteristic of GO2/GCH4 Splash Platelet Injector

2017 International Conference on Environmental and Energy Engineering

生态环境科学;能源学

Liang, Yin^1 ; Weiqiang, Liu^1

Science and Technology on Scramjet Laboratory, National University of Defense Technology, Changsha, HUNAN

410073, China^1

关键词: Characteristic velocities;    Combustion characteristics;    Combustion efficiencies;    Gaseous methane;    Injection method;    Plate thickness;    Platelet injector;    Single element;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/63/1/012021/pdf
DOI  :  10.1088/1755-1315/63/1/012021

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The platelet injector flow is quite different from other injectors due to the platelet technology and complex injection method. This work is aimed at assessing the effect of characteristic chamber length and middle-plate thickness for single-element splash platelet injector. Numerical simulation was adopted to investigate the gaseous methane and gaseous oxygen flow and combustion characteristics. Both characteristic velocity and combustion efficiency are examined for injector design. The results indicate that, with a 0.6mm middle-plate thickness the injector can reach the maximum combustion efficiency and shortest combustion length, but the differences are not obvious for all cases. The characteristic chamber length can be shortened effectively by using splash platelet injector.