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Abstract <p>This paper develops methods for diagnostics of the droplet phase in gas–droplet flows under conditions of fast droplet evaporation, including the functions of droplet distribution by size, direction, and velocity. Measurements were made for the spatial distribution of the droplet phase in a gas–droplet flow formed during a jet outflow of the wall liquid film with a cocurrent gas flow into a vacuum from a supersonic conical nozzle with the Mach number M = 2.75. The features of the behavior of the liquid film on the outlet edge of the nozzle, the ultimate cooling temperature of the liquid, and disintegration of the film into droplets with the formation of back flows are discussed.</p>

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Features of Diagnostics of Droplet Phase in Gas–Droplet Flow behind a Supersonic Nozzle during Outflow into a Vacuum

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • V. N. Yarygin,
  • I. V. Yarygin,
  • V. G. Prikhodko

摘要

Abstract

This paper develops methods for diagnostics of the droplet phase in gas–droplet flows under conditions of fast droplet evaporation, including the functions of droplet distribution by size, direction, and velocity. Measurements were made for the spatial distribution of the droplet phase in a gas–droplet flow formed during a jet outflow of the wall liquid film with a cocurrent gas flow into a vacuum from a supersonic conical nozzle with the Mach number M = 2.75. The features of the behavior of the liquid film on the outlet edge of the nozzle, the ultimate cooling temperature of the liquid, and disintegration of the film into droplets with the formation of back flows are discussed.