CIESC Journal ›› 2023, Vol. 74 ›› Issue (S1): 87-95.DOI: 10.11949/0438-1157.20221610

• Fluid dynamics and transport phenomena • Previous Articles     Next Articles

Numerical study on bubble dynamics of liquid oxygen at a submerged orifice

Mingkun XIAO(), Guang YANG, Yonghua HUANG, Jingyi WU()   

  1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2022-11-13 Revised:2022-12-25 Online:2023-09-27 Published:2023-06-05
  • Contact: Jingyi WU


肖明堃(), 杨光, 黄永华, 吴静怡()   

  1. 上海交通大学机械与动力工程学院,上海 200240
  • 通讯作者: 吴静怡
  • 作者简介:肖明堃(1997—),男,博士研究生,
  • 基金资助:


Liquid oxygen is an essential component of high-specific-impulse cryogenic propellant in deep space exploration. Thus it is necessary to study the bubble dynamics of liquid oxygen. In this paper, based on the open source computational fluid dynamics (CFD) software OpenFOAM, the coupled level set and volume of fluid (CLSVoF) method is adopted and the liquid oxygen bubbles growing from a submerged orifice under different gravity levels are numerically investigated. The results show that the lower the gravity level, the larger the bubble volume at the same dimensionless time, and the closer the bubble to sphere. The change of bubble center of gravity in axial direction will go through three stages: fast-slow-fast, but the first stage is not obvious at high gravity levels. The change of wall contact angle is greater at low gravity levels than that at high gravity levels. Moreover, there is a conspicuous power law between bubble detachment parameters and gravity levels.

Key words: liquid oxygen, hydrodynamics, bubble, two-phase flow, computational fluid dynamics



关键词: 液氧, 流体动力学, 气泡, 两相流, 计算流体力学

CLC Number: