动态惯性力作用下球形油滴二次破碎分析

Translated title of the contribution: Secondary Breakup Analysis of Spherical Oil Droplets Under Time-Dependent Inertial Force

Qing Wu, Yikai Li, Ning Kang, Peng Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

A corresponding physical model which is close to reality was established according to the motion characteristics of oil droplet formed from primary fuel atomization.Intrinsic relation of each parameter can be derived through N-S equation and linearization analysis method.Based on the solutions, the effects of Ma number, Bond number, Oh number and gas-liquid density ratio k secondary breakup of oil droplet were studied respectively. Analysis results show that gas compressibility does promote secondary breakup of oil droplet but the compact is not obvious.So in general, influence of gas compressibility can be neglected.In addition, the viscosity of oil drop can inhibit breakage and the acceleration is a direct cause of secondary breakup.Therefore, increasing Bond number is meaningful to the quality of atomization.

Translated title of the contributionSecondary Breakup Analysis of Spherical Oil Droplets Under Time-Dependent Inertial Force
Original languageChinese (Simplified)
Pages (from-to)561-568
Number of pages8
JournalNeiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)
Volume37
Issue number6
DOIs
Publication statusPublished - 25 Nov 2019

Keywords

  • Secondary breakup
  • Spherical oil droplet
  • Time-dependent inertial force

ASJC Scopus subject areas

  • Automotive Engineering
  • Mechanical Engineering

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