Pub Date : 2023-01-01DOI: 10.1615/multscientechn.2023048360
Yohsuke Tanaka, Tatsuki Iwaguchi, Yasufumi Yamamoto, R. Otomo, S. Harada
{"title":"Visualization of mixing upper and lower stratified suspensions using red and blue fluorescent particles","authors":"Yohsuke Tanaka, Tatsuki Iwaguchi, Yasufumi Yamamoto, R. Otomo, S. Harada","doi":"10.1615/multscientechn.2023048360","DOIUrl":"https://doi.org/10.1615/multscientechn.2023048360","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":"67730369","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}
Pub Date : 2023-01-01DOI: 10.1615/multscientechn.2023046718
Junming Chen, Kosuke Hayashi, D. Legendre, D. Lucas, A. Tomiyama
{"title":"EFFECTS OF SURFACTANT ON LIFT COEFFICIENT OF ELLIPSOIDAL BUBBLES IN THE VISCOUS-FORCE DOMINANT REGIME","authors":"Junming Chen, Kosuke Hayashi, D. Legendre, D. Lucas, A. Tomiyama","doi":"10.1615/multscientechn.2023046718","DOIUrl":"https://doi.org/10.1615/multscientechn.2023046718","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":"67729494","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}
Pub Date : 2023-01-01DOI: 10.1615/multscientechn.2023048029
Yasushi Koito, C. Chen, R. Kakizoe, A. Fukushima
This article describes the experimental study of the centered-wick heat pipe with additional working fluid. A semi-transparent heat pipe is employed, and the heat transfer experiments are conducted in three orientation modes: horizontal, vertical, and sideways. The wick structure is a sintered copper powder, and the working fluid is water. The heat pipe has a small gap between the wick structure and the container wall. In each orientation mode, a condenser section of the heat pipe is water-cooled with a cooling jacket, and an evaporator section is heated with a heater. Fluid-flow and phase-change phenomena in the heat pipe are captured by using a video camera, and the temporal changes in the temperatures of the heat pipe are obtained by using thermocouples. Due to the additional working fluid, liquid slugs are found in vapor flow channels. The liquid slugs can be categorized into two types: a dynamic liquid slug and a static liquid slug. The experimental results demonstrate that the dynamic and static liquid slugs are distributed more effectively in the horizontal orientation mode. Thus, the thermal resistance of the heat pipe tends to be smaller and the maximum heat input to the heat pipe is larger in the horizontal orientation mode than in the other two orientation modes. The experimental results also confirm that the small gap is effective in the horizontal orientation mode. The additional working fluid is stored in the gap, which increases the thermal performance of the heat pipe.
{"title":"Fluid Flow and Heat Transfer Characteristics of a Centered-wick Heat Pipe with Additional Working Fluid: Experimental Study with Visualization","authors":"Yasushi Koito, C. Chen, R. Kakizoe, A. Fukushima","doi":"10.1615/multscientechn.2023048029","DOIUrl":"https://doi.org/10.1615/multscientechn.2023048029","url":null,"abstract":"This article describes the experimental study of the centered-wick heat pipe with additional working fluid. A semi-transparent heat pipe is employed, and the heat transfer experiments are conducted in three orientation modes: horizontal, vertical, and sideways. The wick structure is a sintered copper powder, and the working fluid is water. The heat pipe has a small gap between the wick structure and the container wall. In each orientation mode, a condenser section of the heat pipe is water-cooled with a cooling jacket, and an evaporator section is heated with a heater. Fluid-flow and phase-change phenomena in the heat pipe are captured by using a video camera, and the temporal changes in the temperatures of the heat pipe are obtained by using thermocouples. Due to the additional working fluid, liquid slugs are found in vapor flow channels. The liquid slugs can be categorized into two types: a dynamic liquid slug and a static liquid slug. The experimental results demonstrate that the dynamic and static liquid slugs are distributed more effectively in the horizontal orientation mode. Thus, the thermal resistance of the heat pipe tends to be smaller and the maximum heat input to the heat pipe is larger in the horizontal orientation mode than in the other two orientation modes. The experimental results also confirm that the small gap is effective in the horizontal orientation mode. The additional working fluid is stored in the gap, which increases the thermal performance of the heat pipe.","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":"67730308","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}
Pub Date : 2023-01-01DOI: 10.1615/multscientechn.2023047916
Ward Haegeman, M. Massot, C. Le Touze, J. Dupays
{"title":"Numerical simulation of the impact of a gas jet on a free water surface","authors":"Ward Haegeman, M. Massot, C. Le Touze, J. Dupays","doi":"10.1615/multscientechn.2023047916","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047916","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":"67730536","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}
Pub Date : 2023-01-01DOI: 10.1615/multscientechn.2023047811
Satoru Takano, Sotaro Masanobu, S. Kanada, Masao Ono
{"title":"Experimental Studies on Velocities of Gas- and Solid-Phases in Gas–Liquid–Solid Three-Phase Flow for Subsea Resource Productions","authors":"Satoru Takano, Sotaro Masanobu, S. Kanada, Masao Ono","doi":"10.1615/multscientechn.2023047811","DOIUrl":"https://doi.org/10.1615/multscientechn.2023047811","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":"67730205","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}
Pub Date : 2022-01-01DOI: 10.1615/multscientechn.2022043494
K. Yamamoto
{"title":"Lattice Boltzmann method interpreting the distribution function as a function of the time step to derive Navier-Stokes equation","authors":"K. Yamamoto","doi":"10.1615/multscientechn.2022043494","DOIUrl":"https://doi.org/10.1615/multscientechn.2022043494","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67728900","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}
Pub Date : 2022-01-01DOI: 10.1615/multscientechn.2022039270
V. Lakhera, Balkrushna A. Shah, Kathit Shah
{"title":"Experimental study on nucleate pool boiling heat transfer of R141b over plain and micro-finned cylindrical surfaces at different pressure","authors":"V. Lakhera, Balkrushna A. Shah, Kathit Shah","doi":"10.1615/multscientechn.2022039270","DOIUrl":"https://doi.org/10.1615/multscientechn.2022039270","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729088","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}
Pub Date : 2022-01-01DOI: 10.1615/multscientechn.2022046139
Pedro Balbão Bazon, Johann E. Castro B., C. M. Ruiz-Diaz, M. Hernández-Cely, O. M. Hernandez Rodriguez
{"title":"HYBRID MACHINE LEARNING MODEL APPLIED TO PHASE INVERSION PREDICTION IN LIQUID-LIQUID PIPE FLOW","authors":"Pedro Balbão Bazon, Johann E. Castro B., C. M. Ruiz-Diaz, M. Hernández-Cely, O. M. Hernandez Rodriguez","doi":"10.1615/multscientechn.2022046139","DOIUrl":"https://doi.org/10.1615/multscientechn.2022046139","url":null,"abstract":"","PeriodicalId":34942,"journal":{"name":"Multiphase Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67729355","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}
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