...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Aerospace science and technology >Linear stability analysis of a slightly viscoelastic liquid jet
【24h】

Linear stability analysis of a slightly viscoelastic liquid jet

机译：轻微粘弹性液体射流的线性稳定性分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Gel propellant is one of the non-Newtonian viscoelastic liquids. The study of breakup of a gel propellant jet emanating from an injector has always been a fundamental task for a propulsion system with gel propellants. In this paper, a linear instability analysis method has been used to investigate the breakup of a slightly viscoelastic liquid jet. The disturbance wave growth rate of the axisymmetric mode has been determined by solving the dispersion equation of a slightly viscoelastic liquid jet, which was obtained by combining the linear instability theory and the linear viscoelastic model. Moreover, the maximum growth rate and corresponding dominant wave number have been observed, according to which maximum growth rate curves and dominant wave number curves have been plotted; this theory has been verified in the experiments of other authors. The time constant ratio, zero shear viscosity, liquid jet velocity, surface tension, liquid jet radius, liquid density and the gas density have been tested for their influence on the instability of the viscoelastic liquid jet. The results show that the effect of gas density is the greatest on the breakup of the viscoelastic jet, the jet velocity is affected second and the zero shear viscosity is least affected. However, the effects of other parameters are limited.
机译：凝胶推进剂是非牛顿粘弹性液体之一。对于具有凝胶推进剂的推进系统，从喷射器射出的凝胶推进剂射流的破裂研究一直是一项基本任务。在本文中，线性不稳定性分析方法已用于研究微粘弹性液体射流的破裂。轴对称模式的扰动波增长率是通过求解微粘弹性液体射流的色散方程来确定的，该方程是通过将线性不稳定性理论和线性粘弹性模型相结合而获得的。此外，观察到最大生长速率和相应的主波数，根据它们绘制了最大生长速率曲线和主波数曲线。该理论已在其他作者的实验中得到验证。测试了时间常数比，零剪切粘度，液体射流速度，表面张力，液体射流半径，液体密度和气体密度对粘弹性液体射流不稳定性的影响。结果表明，气体密度对粘弹性射流破裂的影响最大，其次是影响射流速度，对零剪切粘度的影响最小。但是，其他参数的影响是有限的。

著录项

  • 来源
    《Aerospace science and technology》 |2013年第1期|249-256|共8页
  • 作者

    Li-jun Yang; Yuan-yuan Qu; Qing-fei Fu; Bing-rui Xu; Wei Zhang; Ming-long Du;

  • 作者单位

    School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 10019), China;

    School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 10019), China;

    School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 10019), China;

    School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 10019), China;

    School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 10019), China;

    School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 10019), China;

  • 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

    Cel propellant; Linear stability analysis; Slightly viscoelastic liquid jet; Maximum growth rate; Dominant wave number;

    机译：Cel推进剂线性稳定性分析粘弹性液体射流最大增长率最大波数;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号