Effect of initial droplet-size distributions on fuel-vapor profiles in a shear-layer flow

D. Katoshevski, Y. Tambour

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We analyze the evaporation of a multisize (polydisperse) liquid fuel spray in a shear-layer between two parallel unidirectional streams of unequal velocity. The analysis is also applicable for a shear-layer between two radially spreading streams which share the same axis of symmetry. Similarity solutions are presented for the evolution in droplet size distributions across the shear-layer, and the effects of various initial droplet size distributions on the profiles of fuel-vapor concentrations are examined. A qualitative comparison between the present results for a typical computed total mass distribution of the liquid-phase and experimental results of the intensity of light scattering from droplets as reported by Lazaro and Lasheras (1988) shows similarity between the two profiles. This supports the assumptions and boundary-conditions employed in the present study. The general behavior of the theoretical Sauter Mean Diameter distribution of the spray across the shear layer also compares well with the reported experimental results of Lazaro and Lasheras.
Original languageEnglish GB
Title of host publicationAIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit, 29th, Monterey, CA, June 28-30, 1993
StatePublished - 1 Jun 1993
Externally publishedYes


  • Drop Size
  • Fuel Sprays
  • Liquid-Vapor Interfaces
  • Shear Flow
  • Shear Layers
  • Boundary Conditions
  • Far Fields
  • Incompressible Flow
  • Laminar Flow
  • Similarity Theorem
  • Steady Flow


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