Numerical investigation on bubble dynamics during flow boiling using moving particle semi-implicit method

Ronghua Chen, Wenxi Tian, G. H. Su, Suizheng Qiu, Yuki Ishiwatari, Yoshiaki Oka

研究成果: Article査読

46 被引用数 (Scopus)

抄録

In the present study, two-dimensional numerical simulation of single bubble dynamics during nucleate flow boiling has been performed using moving particle semi-implicit (MPS) method. A set of moving particles was used to represent the liquid phase. The bubble-liquid interface was set to be a free surface boundary which can be captured according to the motion and location of interfacial particles. The interfacial heat transfer rate was determined by the energy variety of interfacial particles. The bulk liquid velocities investigated ranged from 0.07 to 0.3 m/s. The surface orientations varied from vertical to horizontal through 60°, 45° and 30°. Bulk liquid subcooling varied from 0 to 6.5 °C and wall superheat from 2.0 to 20.0 °C. The computational results show that the bulk liquid velocity and surface orientation influenced the bubble diameter and liftoff time. Bubble would slide along the heater surface before lifting off and the sliding velocity at liftoff increased with an increase in bulk liquid velocity. Bubble dynamic was related to bulk liquid subcooling as well as wall superheat. The numerical results have been compared with the experimental data.

本文言語English
ページ(範囲)3830-3840
ページ数11
ジャーナルNuclear Engineering and Design
240
11
DOI
出版ステータスPublished - 2010 11

ASJC Scopus subject areas

  • 原子力エネルギーおよび原子力工学
  • 機械工学
  • 安全性、リスク、信頼性、品質管理
  • 材料科学(全般)
  • 核物理学および高エネルギー物理学
  • 廃棄物管理と処理

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