摘要
本文对Ｌｉ（１）／ＳＦ６（ｇ）气－液浸没有反应财流流动和燃烧采用单流体模型及ｋ－ε－ｇ湍流燃烧模型进行了数值研究。针对现有研究的一些不足，本文在物理平面内采用全隐向后积分及乘方格式差分求解了基本方程。得到了速度、温度、密度和气相体积分数等物理量比较合理的详细分布及穿透区形状。从而较深入地揭示了气－液浸没有反应射流流动的流动特征。并由计算结果给出了穿透区长度与其主要影响因素之间的关系式，与相关的一些实验结果是一致的。
The combustion of gaseous SF6 jet submerged in liquid metal Li is simulated by using a single-fluid(no slip) model of multiphase flows and k -ε- g model of turbulent combustion.Unlike some previous studies, in this paper the governing equations are solved in the physical plane by using a fully implicit potver-law scheme in order to avoid the unreasonable prediction in radial distribution of the submerged reacting flow field. The other feature of this paper is that the empirical correlation of entrainment at the gas-liquid interface is not required in the solving process.The shape of the penetrating region, detail distribution of the axial velocity, temperature,density and void fraction in Li(1)-SF6(g) submerged combustion are obtained.The relationship between the penetrating length and the main effective factors is given by the prediction results, which is in good agreement with the experimental results.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1996年第4期482-486,共5页
Journal of Engineering Thermophysics
关键词
浸没射流
燃烧
两相流动
数值模拟
submerged jet, combustion, two-phase flow,numerical simulation
