{"title":"Advances in Falling-Cylinder Viscometry: A Comprehensive Review","authors":"Jean-Luc Daridon, Jean-Patrick Bazile, Guillaume Galliero","doi":"10.1007/s10765-024-03356-w","DOIUrl":null,"url":null,"abstract":"<div><p>This paper focuses on falling-cylinder viscometry, a commonly used method for measuring viscosity due to its simplicity and versatility. The review explores the development of falling-cylinder viscometers, with an emphasis on their adaptability to high-pressure environment. The theoretical foundation for an ideal falling cylinder in a fluid within a rigid tube is discussed, addressing limitations arising from geometry, eccentricity, non-verticality, and entrance/exit effects. Critical Reynolds number and transient regime, are also examined. Practical aspects, including sinker design, working equations, calibration, as well as temperature and pressure influences on the constant apparatus, are discussed. By critically assessing these aspects, this review provides insights and recommendations for the effective application of falling-cylinder viscometry in both scientific and industrial contexts.</p></div>","PeriodicalId":598,"journal":{"name":"International Journal of Thermophysics","volume":"45 5","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Thermophysics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10765-024-03356-w","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
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Abstract
This paper focuses on falling-cylinder viscometry, a commonly used method for measuring viscosity due to its simplicity and versatility. The review explores the development of falling-cylinder viscometers, with an emphasis on their adaptability to high-pressure environment. The theoretical foundation for an ideal falling cylinder in a fluid within a rigid tube is discussed, addressing limitations arising from geometry, eccentricity, non-verticality, and entrance/exit effects. Critical Reynolds number and transient regime, are also examined. Practical aspects, including sinker design, working equations, calibration, as well as temperature and pressure influences on the constant apparatus, are discussed. By critically assessing these aspects, this review provides insights and recommendations for the effective application of falling-cylinder viscometry in both scientific and industrial contexts.
期刊介绍：
International Journal of Thermophysics serves as an international medium for the publication of papers in thermophysics, assisting both generators and users of thermophysical properties data. This distinguished journal publishes both experimental and theoretical papers on thermophysical properties of matter in the liquid, gaseous, and solid states (including soft matter, biofluids, and nano- and bio-materials), on instrumentation and techniques leading to their measurement, and on computer studies of model and related systems. Studies in all ranges of temperature, pressure, wavelength, and other relevant variables are included.
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