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Abstract <p>The dynamics of boiling-up of a jet of superheated water has been investigated by experiment at a discharge from a high-pressure chamber through a short oval nozzle. Changes in the shape, the opening angle and the length of the jet spray cone have been traced under changes in thermodynamic parameters (temperature <i>T</i><sub>s</sub>, pressure <i>p</i><sub>s</sub>), corresponding to the phase equilibrium line in a wide range <i>T</i><sub>s</sub> = 383–573 K, <i>p</i><sub>s</sub> = 0.1–8.6 MPa. A manifestation of the jet inversion has been revealed. The droplet size of a boiling-up jet has been determined by the microscopic method. The paper presents data on the particle sizes distribution in a flow in different boiling-up regimes.</p>

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Flash Boiling of Water at Discharge through a Short Oval Nozzle

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • K. A. Busov,
  • N. A. Mazheiko,
  • V. A. Shurupov

摘要

Abstract

The dynamics of boiling-up of a jet of superheated water has been investigated by experiment at a discharge from a high-pressure chamber through a short oval nozzle. Changes in the shape, the opening angle and the length of the jet spray cone have been traced under changes in thermodynamic parameters (temperature Ts, pressure ps), corresponding to the phase equilibrium line in a wide range Ts = 383–573 K, ps = 0.1–8.6 MPa. A manifestation of the jet inversion has been revealed. The droplet size of a boiling-up jet has been determined by the microscopic method. The paper presents data on the particle sizes distribution in a flow in different boiling-up regimes.