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A numerical study of quasi-static gas injected bubble growth: Some aspects of gravity

机译:准静态注气气泡生长的数值研究:重力的某些方面

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摘要

In the present investigation, adiabatic gas bubble growth from a submerged orifice has been numerically simulated. The growth of the bubble is described by the full Navier-Stokes equations which have been solved by the finite-volume method using the commercial software package TransAT. The numerical simulations have been validated against detailed experimental measurements including the position of the centre of gravity, the curvature profiles and the departure volume. Subsequent to this the CFD platform was used to study some aspects of the influence of gravity level on bubble growth dynamics. In particular, the influence of gravity in the range of 0.1 ≤ g/g~* ≤ 1.5 is investigated and the subsequent influence on the bubble formation and departure characteristics are discussed.
机译:在目前的研究中,从淹没孔口产生的绝热气泡的生长已被数值模拟。气泡的增长由完整的Navier-Stokes方程描述,该方程已通过有限体积方法使用商业软件包TransAT求解。数值模拟已经针对详细的实验测量进行了验证,这些实验测量包括重心的位置,曲率轮廓和偏离体积。随后,使用CFD平台研究重力水平对气泡生长动力学影响的某些方面。特别地,研究了重力在0.1≤g / g〜*≤1.5范围内的影响,并讨论了随后对气泡形成和离去特性的影响。

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  • 来源
  • 作者单位

    Trinity College Dublin, Fluids & Heat Transfer Research Croup, Department of Mechanical & Manufacturing Engineering, Parsons Building, Trinity College, Dublin 2, Ireland;

    ASCOMP GmbH, Technoparkstrasse 1, 8005 Zurich, Switzerland;

    Trinity College Dublin, Fluids & Heat Transfer Research Croup, Department of Mechanical & Manufacturing Engineering, Parsons Building, Trinity College, Dublin 2, Ireland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CFD; Bubble growth; Gravitational field; Bubble departure;

    机译:差价合约气泡增长;引力场泡泡离开;

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