• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Unsteady conjugate mass and heat transfer from/to a prolate spheroidal droplet in uniaxial extensional creeping flow
【24h】

Unsteady conjugate mass and heat transfer from/to a prolate spheroidal droplet in uniaxial extensional creeping flow

机译：单轴拉伸蠕变流中不稳定的共轭质量和扁平球状液滴的传热

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

The unsteady conjugate mass/heat transfer from/to a prolate droplet suspended in uniaxial extensional creeping flow was numerically investigated. Based on the Stokes velocity field of a prolate droplet at small Reynolds numbers, a numerical algorithm combined with the finite difference method, the concentration transformation method and the level set approach was adopted to solve the convection-diffusion transport equations. The effects of Peclet number (1 = Pe = 1000), capillary number (0 = Ca = 0.1), viscosity ratio (0.01 = lambda = 1), diffusivity ratio (0.1 = K = 10) and distribution coefficient (0.1 = m = 10) on interphase transport process were examined in terms of numerical simulation. The results show that the conjugate mass transfer from/to a single prolate droplet in the uniaxial extensional flow is significantly influenced by these five parameters, and the local and total mass transfer rates of a deformable droplet are slightly different from that of a spherical one. Given Pe, Ca, lambda, K and m, an empirical correlation with an average relative deviation of 12.01% was proposed to predict Sh(1.infinity) of the prolate and spherical droplets suspended in uniaxial extensional creeping flow. (C) 2019 Elsevier Ltd. All rights reserved.
机译：数值研究了悬浮在单轴拉伸蠕变流中的扁平液滴的非稳态共轭质量/传热。基于小雷诺数下扁长液滴的斯托克斯速度场，采用有限差分法，浓度变换法和能级集法相结合的数值算法求解对流扩散方程。 Peclet数（1 <= Pe <= 1000），毛细管数（0 <= Ca <= 0.1），粘度比（0.01 <= lambda <= 1），扩散率（0.1 <= K <= 10）的影响通过数值模拟研究了相间传输过程中的分布系数（0.1 <= m <= 10）。结果表明，这五个参数显着影响单轴拉伸流中单个扁桃​​状液滴的共轭传质/传质，而可变形液滴的局部传质速率和总传质速率与球形液滴的传质速率略有不同。考虑到Pe，Ca，lambda，K和m，提出了经验相关性，平均相对偏差为12.01％，以预测悬浮在单轴拉伸蠕变流中的扁球形和球形液滴的Sh（1.infinity）。 （C）2019 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2019年第5期|1180-1190|共11页
  • 作者

    Liu Anjun; Chen Jie; Wang Zhenzhen; Mao Zai-Sha; Yang Chao;

  • 作者单位

    Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300350, Peoples R China|Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R 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

    Conjugate mass/heat transfer; Uniaxial extensional flow; Prolate droplet; Simulation; Correlation;

    机译：共轭传质/传热;单轴延伸流;液滴状液滴;模拟;相关;

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