饱和压力下通道内泰勒汽泡运动及形状的实验研究

IF 0.5 4区工程技术 Q4 ENGINEERING, AEROSPACE

Thermophysics and Aeromechanics Pub Date : 2026-10-26 DOI:10.1134/S0869864326030121

R. A. Dekhtyar

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引用次数: 0

摘要

实验研究了饱和压力下Taylor汽泡在圆形（横截面直径为16mm）和环形（横截面直径为25mm和16mm）通道中的上升动力学。过热脱气液体沸腾时形成的气泡。研究发现，其前后表面的运动速度是可变的，并取决于其上升机制，其在通道中的位置和先前的上升动力学。结果表明，气泡边界处液体温度的时空分布决定了气泡的这种行为。根据得到的结果，绘制了一幅上升区图，将运动的性质与蒸汽泡表面附近液体过热的大小联系起来。

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Experimental study of the motion and shape of a Taylor vapor bubble floating in a channel at saturation pressure

The dynamics of the Taylor vapor bubble rise in a circular (16 mm cross-sectional diameter) and annular (25 and 16 mm cross-sectional diameters) channel at saturation pressure was experimentally studied. The bubble formed during boiling of superheated degassed liquid. It was found that the movement velocities of its front and rear surfaces are variable and depend on the rise regime, its position in the channel, and the previous rise dynamics. It is shown that this behavior is determined by the spatiotemporal distribution of liquid temperature at the bubble boundary. Based on the obtained results, a map of rise regimes was plotted, linking the nature of movement with the magnitude of liquid superheating near the vapor bubble surface.

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来源期刊

Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS

CiteScore

0.90

自引率

40.00%

发文量

审稿时长

>12 weeks

期刊介绍： The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.