摘要
弹状汽泡形成过程的准确预测对于分析和预防低温推进剂的间歇泉现象具有重要意义.分析了竖直推进剂管内汽泡的碰撞及聚合机理,建立了描述这一过程的MUSIG模型并进行了数值计算.与实验结果对比表明,建立的模型能够有效预测竖直低温推进剂输送管内的汽泡起始聚合高度、弹状汽泡形成高度以及汽泡尺寸分布等重要参数,为间歇泉现象的研究和抑制提供了理论依据.
Numerical predictions of the formation of slug bubbles are of great importance in analyzing and preventing geysering. The mechanisms governing bubble collision and coalescence were theoretically analyzed and a MUSIG model was proposed to describe this process. Two -dimensional numerical simulations were then performed using the newly proposed model. Comparison of the numerical results with experimental data confirmed that the model can give accurate predictions of the locations of the onset of bubble coalescence （ OBC）, the formation of slug bubbles （FSB） , as well as local bubble size distributions.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2009年第2期198-203,共6页
Journal of Harbin Engineering University
基金
中国博士后科学基金资助项目(20070410722)
