Ivan Talão Martins , Pablo Fariñas Alvariño , Luben Cabezas-Gómez
{"title":"饱和 HFE-7100 中单腔气泡成核、生长和脱离的实验分析新方法","authors":"Ivan Talão Martins , Pablo Fariñas Alvariño , Luben Cabezas-Gómez","doi":"10.1016/j.expthermflusci.2024.111272","DOIUrl":null,"url":null,"abstract":"<div><p>The study of single bubble nucleation, growth and detachment processes has being carried out with remarkable relevance in the last fifty years. The complexity of the associated phenomena are still a challenge for the researchers in the field, yielding a lot of works trying to explain the enrolled mechanisms. These studies include experimental, numerical and even theoretical approaches. In particular but not exclusively for numerical approaches, it is of essential importance having a solid and detailed experimental description of the full event. It is in this context that this work emerges, proposing a methodology for characterizing the single bubble nucleation, growth and detachment process. This methodology is based in the determination of a “typical bubble” that represents the whole phenomena, providing the reconstruction of a main bubble life-cycle with its uncertainty (both in space and time). This reconstruction allows the determination of several important characteristics, such as bubble volume, apparent contact angle, dry radius, and the forces acting on the bubble. This work analyzes a set of bubbles growing from a cavity of <span><math><mrow><mn>91</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span> diameter, under saturated conditions at 0,583 bar and superheating of 25,8 °C. All the outputs were obtained considering a carefully uncertainty determination and propagation from both systematic and random sources, which are not negligible as it is demonstrated in this work. The importance of considering a sufficient number of bubbles to characterize the phenomenon was also addressed, considering an analysis of uncertainties for different set of bubbles. The methodology was also confronted to previous approaches reported elsewhere, that ensured its performance, robustness, and validation.</p></div>","PeriodicalId":12294,"journal":{"name":"Experimental Thermal and Fluid Science","volume":"159 ","pages":"Article 111272"},"PeriodicalIF":2.8000,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0894177724001419/pdfft?md5=916735a6f72d327c9ed8859a576bf9df&pid=1-s2.0-S0894177724001419-main.pdf","citationCount":"0","resultStr":"{\"title\":\"A new methodology for experimental analysis of single-cavity bubble’s nucleation, growth and detachment in saturated HFE-7100\",\"authors\":\"Ivan Talão Martins , Pablo Fariñas Alvariño , Luben Cabezas-Gómez\",\"doi\":\"10.1016/j.expthermflusci.2024.111272\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The study of single bubble nucleation, growth and detachment processes has being carried out with remarkable relevance in the last fifty years. The complexity of the associated phenomena are still a challenge for the researchers in the field, yielding a lot of works trying to explain the enrolled mechanisms. These studies include experimental, numerical and even theoretical approaches. In particular but not exclusively for numerical approaches, it is of essential importance having a solid and detailed experimental description of the full event. It is in this context that this work emerges, proposing a methodology for characterizing the single bubble nucleation, growth and detachment process. This methodology is based in the determination of a “typical bubble” that represents the whole phenomena, providing the reconstruction of a main bubble life-cycle with its uncertainty (both in space and time). This reconstruction allows the determination of several important characteristics, such as bubble volume, apparent contact angle, dry radius, and the forces acting on the bubble. This work analyzes a set of bubbles growing from a cavity of <span><math><mrow><mn>91</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span> diameter, under saturated conditions at 0,583 bar and superheating of 25,8 °C. All the outputs were obtained considering a carefully uncertainty determination and propagation from both systematic and random sources, which are not negligible as it is demonstrated in this work. The importance of considering a sufficient number of bubbles to characterize the phenomenon was also addressed, considering an analysis of uncertainties for different set of bubbles. The methodology was also confronted to previous approaches reported elsewhere, that ensured its performance, robustness, and validation.</p></div>\",\"PeriodicalId\":12294,\"journal\":{\"name\":\"Experimental Thermal and Fluid Science\",\"volume\":\"159 \",\"pages\":\"Article 111272\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0894177724001419/pdfft?md5=916735a6f72d327c9ed8859a576bf9df&pid=1-s2.0-S0894177724001419-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Experimental Thermal and Fluid Science\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0894177724001419\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Experimental Thermal and Fluid Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0894177724001419","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
摘要
过去五十年来,对单个气泡成核、生长和脱离过程的研究取得了显著的成果。相关现象的复杂性对该领域的研究人员来说仍然是一个挑战,因此产生了许多试图解释注册机制的工作。这些研究包括实验、数值甚至理论方法。特别是数值方法,但不限于数值方法,对整个事件进行扎实而详细的实验描述至关重要。正是在这种背景下,这项研究提出了一种描述单个气泡成核、生长和脱离过程的方法。该方法的基础是确定一个代表整个现象的 "典型气泡",重建主要气泡生命周期及其不确定性(空间和时间)。通过这种重建,可以确定几个重要特征,如气泡体积、表观接触角、干燥半径和作用在气泡上的力。这项工作分析了一组从直径为 91μm 的空腔中产生的气泡,这些气泡是在 0.583 巴的饱和条件和 25.8 °C 的过热条件下产生的。在获得所有输出结果时,都仔细考虑了系统和随机来源的不确定性确定和传播,正如本研究中所证明的那样,这些不确定性是不可忽略的。在分析不同气泡组的不确定性时,还考虑了考虑足够数量的气泡来描述现象特征的重要性。该方法还与其他地方报道的先前方法进行了比较,以确保其性能、稳健性和有效性。
A new methodology for experimental analysis of single-cavity bubble’s nucleation, growth and detachment in saturated HFE-7100
The study of single bubble nucleation, growth and detachment processes has being carried out with remarkable relevance in the last fifty years. The complexity of the associated phenomena are still a challenge for the researchers in the field, yielding a lot of works trying to explain the enrolled mechanisms. These studies include experimental, numerical and even theoretical approaches. In particular but not exclusively for numerical approaches, it is of essential importance having a solid and detailed experimental description of the full event. It is in this context that this work emerges, proposing a methodology for characterizing the single bubble nucleation, growth and detachment process. This methodology is based in the determination of a “typical bubble” that represents the whole phenomena, providing the reconstruction of a main bubble life-cycle with its uncertainty (both in space and time). This reconstruction allows the determination of several important characteristics, such as bubble volume, apparent contact angle, dry radius, and the forces acting on the bubble. This work analyzes a set of bubbles growing from a cavity of diameter, under saturated conditions at 0,583 bar and superheating of 25,8 °C. All the outputs were obtained considering a carefully uncertainty determination and propagation from both systematic and random sources, which are not negligible as it is demonstrated in this work. The importance of considering a sufficient number of bubbles to characterize the phenomenon was also addressed, considering an analysis of uncertainties for different set of bubbles. The methodology was also confronted to previous approaches reported elsewhere, that ensured its performance, robustness, and validation.
期刊介绍:
Experimental Thermal and Fluid Science provides a forum for research emphasizing experimental work that enhances fundamental understanding of heat transfer, thermodynamics, and fluid mechanics. In addition to the principal areas of research, the journal covers research results in related fields, including combined heat and mass transfer, flows with phase transition, micro- and nano-scale systems, multiphase flow, combustion, radiative transfer, porous media, cryogenics, turbulence, and novel experimental techniques.