Study on the condensation oscillation characteristics of steam-seawater low-velocity jet

IF 3.2 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Progress in Nuclear Energy Pub Date : 2025-10-02 DOI:10.1016/j.pnucene.2025.106072

An Cao , Yongzhen Hua , Xinxing Liu , Zhaoming Meng , Guangming Fan

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Abstract

Due to the similarity between the physical properties of seawater and freshwater, most scholars believe that the condensation oscillation characteristics of steam-seawater low-velocity jet are the same as those of steam-freshwater low-velocity jet, which leads to a lack of accurate understanding of the oscillation characteristics of steam-seawater jet. To explore the oscillation characteristics of steam-seawater low-velocity jet, a high-speed cameraand two high-frequency dynamic pressure sensorswere carried out to carry out a comparative study experiment between the steam-seawater low-velocity jet and the steam-freshwater low-velocity jet. Through experimental comparative analysis, it is found that the steam-seawater low-velocity jet and the steam-freshwater low-velocity jet have both similarities and obvious differences in phase interface structure, pressure oscillation intensity, pressure oscillation amplitude, and pressure oscillation spectrum. In particular, the amplitude of pressure oscillations in the pool is much smaller for steam-seawater low-velocity jet than for steam-freshwater low-velocity jet at higher water temperatures. The results of this study are helpful for understanding and mastering the condensation oscillation characteristics of steam-seawater low-velocity jet.

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蒸汽-海水低速射流凝结振荡特性研究

由于海水和淡水的物理性质相似，大多数学者认为蒸汽-海水低速射流的凝结振荡特征与蒸汽-淡水低速射流的凝结振荡特征相同，这导致对蒸汽-海水射流振荡特征缺乏准确的认识。为了探究蒸汽-海水低速射流的振荡特性，利用高速摄像机和两个高频动压传感器，对蒸汽-海水低速射流和蒸汽-淡水低速射流进行了对比研究实验。通过实验对比分析，发现蒸汽-海水低速射流与蒸汽-淡水低速射流在相界面结构、压力振荡强度、压力振荡幅值、压力振荡谱等方面既有相似之处，也有明显差异。特别是在较高水温条件下，蒸汽-海水低速射流池内压力振荡幅值远小于蒸汽-淡水低速射流池内压力振荡幅值。研究结果有助于理解和掌握蒸汽-海水低速射流的凝结振荡特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Progress in Nuclear Energy 工程技术-核科学技术

CiteScore

5.30

自引率

14.80%

发文量

331

审稿时长

3.5 months

期刊介绍： Progress in Nuclear Energy is an international review journal covering all aspects of nuclear science and engineering. In keeping with the maturity of nuclear power, articles on safety, siting and environmental problems are encouraged, as are those associated with economics and fuel management. However, basic physics and engineering will remain an important aspect of the editorial policy. Articles published are either of a review nature or present new material in more depth. They are aimed at researchers and technically-oriented managers working in the nuclear energy field. Please note the following: 1) PNE seeks high quality research papers which are medium to long in length. Short research papers should be submitted to the journal Annals in Nuclear Energy. 2) PNE reserves the right to reject papers which are based solely on routine application of computer codes used to produce reactor designs or explain existing reactor phenomena. Such papers, although worthy, are best left as laboratory reports whereas Progress in Nuclear Energy seeks papers of originality, which are archival in nature, in the fields of mathematical and experimental nuclear technology, including fission, fusion (blanket physics, radiation damage), safety, materials aspects, economics, etc. 3) Review papers, which may occasionally be invited, are particularly sought by the journal in these fields.