SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2016, Vol. 24 ›› Issue (11): 1625-1630.DOI: 10.1016/j.cjche.2016.03.004

• 第25届中国过程控制会议专栏 • 上一篇    下一篇

Droplets diameter distribution using maximum entropy formulation combined with a new energy-based sub-model

Seyed Mostafa Hosseinalipour1, Hadiseh Karimaei1, Ehsan Movahednejad2   

  1. 1 Energy and Environmental Lab, Dpt. Mech. Eng., Iran University of Science and Technology, 16846-13114, Narmak, Tehran, Iran;
    2 University of California, Berkeley, USA
  • 收稿日期:2016-01-07 修回日期:2016-03-02 出版日期:2016-11-28 发布日期:2016-12-06
  • 通讯作者: Hadiseh Karimaei

Droplets diameter distribution using maximum entropy formulation combined with a new energy-based sub-model

Seyed Mostafa Hosseinalipour1, Hadiseh Karimaei1, Ehsan Movahednejad2   

  1. 1 Energy and Environmental Lab, Dpt. Mech. Eng., Iran University of Science and Technology, 16846-13114, Narmak, Tehran, Iran;
    2 University of California, Berkeley, USA
  • Received:2016-01-07 Revised:2016-03-02 Online:2016-11-28 Published:2016-12-06
  • Contact: Hadiseh Karimaei

摘要: The maximum entropy principle (MEP) is one of the firstmethods which have been used to predict droplet size and velocity distributions of liquid sprays. Thismethod needs amean droplets diameter as an input to predict the droplet size distribution. This paper presents a newsub-model based on the deterministic aspects of liquid atomization process independent of the experimental data to provide the mean droplets diameter for using in the maximum entropy formulation (MEF). For this purpose, a theoretical model based on the approach of energy conservation law entitled energy-based model (EBM) is presented. Based on this approach, atomization occurs due to the kinetic energy loss. Prediction of the combinedmodel (MEF/EBM) is in good agreement with the available experimental data. The energy-basedmodel can be used as a fast and reliable enoughmodel to obtain a good estimation of the mean droplets diameter of a spray and the combined model (MEF/EBM) can be used to well predict the droplet size distribution at the primary breakup.

关键词: Mean droplets diameter, Energy conservation, Maximum entropy formulation (MEF), Size distribution, Statistical thermodynamics, Mathematical modeling

Abstract: The maximum entropy principle (MEP) is one of the firstmethods which have been used to predict droplet size and velocity distributions of liquid sprays. Thismethod needs amean droplets diameter as an input to predict the droplet size distribution. This paper presents a newsub-model based on the deterministic aspects of liquid atomization process independent of the experimental data to provide the mean droplets diameter for using in the maximum entropy formulation (MEF). For this purpose, a theoretical model based on the approach of energy conservation law entitled energy-based model (EBM) is presented. Based on this approach, atomization occurs due to the kinetic energy loss. Prediction of the combinedmodel (MEF/EBM) is in good agreement with the available experimental data. The energy-basedmodel can be used as a fast and reliable enoughmodel to obtain a good estimation of the mean droplets diameter of a spray and the combined model (MEF/EBM) can be used to well predict the droplet size distribution at the primary breakup.

Key words: Mean droplets diameter, Energy conservation, Maximum entropy formulation (MEF), Size distribution, Statistical thermodynamics, Mathematical modeling