Open Access

ARTICLE

Experimental Investigation into a Superheated Water Jet in Visible and InfraRed Ranges

Konstantin Busov^1,*, Nikolay Mazheiko¹, Leonid Plotnikov², Boris Zhilkin²

1 Institute of Thermal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620085, Russia
2 Turbines and Engines Department, Ural Federal University, Yekaterinburg, 620085, Russia

* Corresponding Author: Konstantin Busov. Email:

(This article belongs to the Special Issue: Issues of Hydro and Gas Dynamics, Heat and Mass Transfer in Mechanical Engineering and Energy)

Frontiers in Heat and Mass Transfer 2025, 23(4), 1203-1214. https://doi.org/10.32604/fhmt.2025.067598

Received 07 May 2025; Accepted 10 July 2025; Issue published 29 August 2025

Abstract

Experimental research into the boiling-up of a free jet of superheated water discharging through a short cylindrical nozzle with sharp inlet and outlet edges into the atmosphere has been carried out. The change in the shape of a liquid jet has been traced through changes in thermodynamic parameters (temperature, pressure) along the saturation line in both the visible range and the infrared spectrum. The flow shapes corresponding to various modes of boiling-up have been identified. With thermal-imaging diagnostics, heterogeneities in the spray plume of a superheated liquid jet have been recorded and temperature distributions have been obtained in various sections of a boiling-up flow. The maximum temperature in the flare of a boiling-up jet has been determined at different distances from the short nozzle’s exit edge.

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