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Experimental Study of Two-Phase Turbulent Wake Using PIV Technique 两相湍流尾流的PIV实验研究
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023047622
Keh Chin Chang, Wei-Cheng Chen
{"title":"Experimental Study of Two-Phase Turbulent Wake Using PIV Technique","authors":"Keh Chin Chang, Wei-Cheng Chen","doi":"10.1615/multscientechn.2023047622","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047622","url":null,"abstract":"Turbulent wake flows laden with the particles in mean size of 55 μm under the conditions of four mass loading ratios (0, 1, 3 and 5%, corresponding to the dispersed-phase volume fractions of 1.248×〖10〗^(-6), 3.743×〖10〗^(-6) and 6.241×〖10〗^(-5) for the last three cases, respectively) and two Reynolds numbers are studied in near-wake regions by means of a two-phase particle image velocimetry (PIV) technique. A complicated manner for variations of turbulence intensity: both suppression and enhancement as compared to that of the single-phase flow is observed in the flow field for each particle-laden case and no definite correlation for turbulence-intensity modulation with respect to the parameters of mass loading ratio (α) and Reynolds number ( 〖Re〗_d) can be drawn from the experimental results. Nevertheless, attenuation of the turbulent mixing capability is observed through the addition of particles in the wake and their weakened extent is increased with the increment of mass loading ratio in both cases of different Reynolds numbers. In contrast to the turbulence modulation, the turbulent dispersion effect for the particles is increased with the increment of either α and 〖Re〗_d.","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"52 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135507583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One-dimensional mixture model code for the modeling of two-phase flow thermosiphon 两相流热虹吸模拟的一维混合模型代码
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023047915
Pierre Boyer, C. Colin, T. Prusek
{"title":"One-dimensional mixture model code for the modeling of two-phase flow thermosiphon","authors":"Pierre Boyer, C. Colin, T. Prusek","doi":"10.1615/multscientechn.2023047915","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047915","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67730509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental Investigation of the Transition between Intermittent and Annular Two-Phase Flow Through Orifice Plates 孔板间歇两相流与环形两相流过渡的实验研究
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023045626
Charlie van der Geest, Luis Campuzano, Marcelo S. de Castro
{"title":"Experimental Investigation of the Transition between Intermittent and Annular Two-Phase Flow Through Orifice Plates","authors":"Charlie van der Geest, Luis Campuzano, Marcelo S. de Castro","doi":"10.1615/multscientechn.2023045626","DOIUrl":"https://doi.org/10.1615/multscientechn.2023045626","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental investigation of the transition between linear to chaotic regimes of sloshing 晃动线性状态到混沌状态转换的实验研究
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023047903
Jean-Louis Muller, P. Planquart, D. Laboureur
{"title":"Experimental investigation of the transition between linear to chaotic regimes of sloshing","authors":"Jean-Louis Muller, P. Planquart, D. Laboureur","doi":"10.1615/multscientechn.2023047903","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047903","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67730597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of pipe diameter on interfacial and wall friction factors of swirling annular flows in a vertical pipe 管径对垂直管内旋流环空流动界面和壁面摩擦因数的影响
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023050392
Ryoya Koto, Ryo Kurimoto, Kosuke Hayashi, Akio Tomiyama
{"title":"Effects of pipe diameter on interfacial and wall friction factors of swirling annular flows in a vertical pipe","authors":"Ryoya Koto, Ryo Kurimoto, Kosuke Hayashi, Akio Tomiyama","doi":"10.1615/multscientechn.2023050392","DOIUrl":"https://doi.org/10.1615/multscientechn.2023050392","url":null,"abstract":"Interfacial and wall friction factors, fi and fw, of swirling annular flows in a vertical pipe of 20 mm in diameter D were measured for comparison with those in a vertical pipe of D = 30 mm. A three-fluid model was applied to evaluate the friction factors. Measurements were carried out in two sections, one near the swirler and the other far downstream the swirler. The swirl intensity of the flow was evaluated by the interfacial swirl number si defined by the ratio of the azimuthal to the axial components of interfacial wave velocity. The interfacial swirl numbers were smaller in the smaller pipe. The ratio of fi in swirling annular flows to that in non-swirling annular flows decreased to unity with decreasing si* which is the arithmetic mean value of si for 0 < z* (= z/D) < 3.8, where z is the axial coordinate in the test section, and is higher in D = 20 mm than in D = 30 mm. The ratio of fw in swirling annular flows to that in non-swirling annular flows decreased to less than unity with decreasing si* and is higher in D = 20 mm than in D = 30 mm.","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135711051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TWO-PHASE FLOW METERING OF MALDISTRIBUTION INSIDE A HEADER BY MEAN OF VENTURI FLOWMETER SOLELY 单用文丘里流量计测量封头内不均匀两相流量
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023048066
Aude Lecardonnel, Delphine Laboureur, Piero Colonna
{"title":"TWO-PHASE FLOW METERING OF MALDISTRIBUTION INSIDE A HEADER BY MEAN OF VENTURI FLOWMETER SOLELY","authors":"Aude Lecardonnel, Delphine Laboureur, Piero Colonna","doi":"10.1615/multscientechn.2023048066","DOIUrl":"https://doi.org/10.1615/multscientechn.2023048066","url":null,"abstract":"In evaporators, the distribution of the liquid and vapor phases among the channels is a complex prob- lem, depending on a wide range of parameters. However, maldistribution causes important loss of performances. Most of the experimental investigations of multiphase flow distribution are measur- ing the liquid and vapor quantities in the channels through a phase separation process, increasing the test duration and complexity. Therefore, the amount of parameters usually investigated is limited. In the present work, an air/water mixture was used as fluid. The distribution of the two phases in eight channels connected to a header was investigated. The inlet mass flow rates considered ranged from 0 to 0.2kg/s for the water, and from 0 to 0.04kg/s for the air. Consequently, qualities x up to 0.3 and void fractions α up to 0.9 were reached. Finally, to allow a continuous measurement process, the mass flow rates in each channel were measured thanks to venturi flowmeter calibrated on a separate line. Since no void fraction meter was coupled, a new iterative methodology, based on the venturi pressure drops measurement solely, was developed and is proposed here. It proved to successfully predict the vapor and liquid phases flow rates in each channel.","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135211679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modelling of particle wet milling in a stirred tank using CFD/PBE coupled approach 基于CFD/PBE耦合方法的搅拌槽内颗粒湿磨模拟
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023047862
Zoé Mercier, P. Fede, M. Pigou, J. Bayle, E. Climent
{"title":"Modelling of particle wet milling in a stirred tank using CFD/PBE coupled approach","authors":"Zoé Mercier, P. Fede, M. Pigou, J. Bayle, E. Climent","doi":"10.1615/multscientechn.2023047862","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047862","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental Investigation of Two-Phase Pressure Drop in the Straight Adiabatic Tubes 直绝热管内两相压降的实验研究
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023047473
Arvind Kumar, Hardik B. Kothadia
{"title":"Experimental Investigation of Two-Phase Pressure Drop in the Straight Adiabatic Tubes","authors":"Arvind Kumar, Hardik B. Kothadia","doi":"10.1615/multscientechn.2023047473","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047473","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
gas liquid flow in hilly terrain pipelines - single and multiple sections 丘陵地形管道中的气液流动.单段和多段
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023047549
Y. Taitel, D. Barnea
{"title":"gas liquid flow in hilly terrain pipelines - single and multiple sections","authors":"Y. Taitel, D. Barnea","doi":"10.1615/multscientechn.2023047549","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047549","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Tissue Stiffness on Cavitation Cloud Formation by High Intensity Focused Ultrasound in Agarose Gels 组织刚度对琼脂凝胶中高强度聚焦超声空化云形成的影响
Multiphase Science and Technology Pub Date : 2023-01-01 DOI: 10.1615/multscientechn.2023047971
Koshi Kishimoto, T. Ogasawara, H. Takahira
{"title":"Influence of Tissue Stiffness on Cavitation Cloud Formation by High Intensity Focused Ultrasound in Agarose Gels","authors":"Koshi Kishimoto, T. Ogasawara, H. Takahira","doi":"10.1615/multscientechn.2023047971","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047971","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67730700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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