The motion of a bubble rising through viscoelastic polymeric liquids
The motion of a bubble rising in sodium acrylate polymer (SAP) solutions is experimentally explored. In this study, 0.3 and 0.6 wt% SAP solutions with shear-thinning and elastic properties are prepared. The bubble rise motion depending on the value of the suspending viscosity is examined covering fr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2015-01-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/81/823/81_14-00612/_pdf/-char/en |
| _version_ | 1811225133734428672 |
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| author | Mitsuhiro OHTA Yasufumi HIEDA Norihiko TOKUI Shuichi IWATA |
| author_facet | Mitsuhiro OHTA Yasufumi HIEDA Norihiko TOKUI Shuichi IWATA |
| author_sort | Mitsuhiro OHTA |
| collection | DOAJ |
| description | The motion of a bubble rising in sodium acrylate polymer (SAP) solutions is experimentally explored. In this study, 0.3 and 0.6 wt% SAP solutions with shear-thinning and elastic properties are prepared. The bubble rise motion depending on the value of the suspending viscosity is examined covering from small to large-sized bubbles. Consequently, it is confirmed that bubbles rising in the SAP solutions have cusped shapes due to the elastic effect except for large deformed bubbles in the 0.6 wt% SAP solution. In addition, the bubble rise motion in the viscoelastic liquid is considered and discussed based on effective physical parameters and the terminal bubble rise velocity. In the experiment using the 0.6 wt% SAP solution, it is observed that a jump discontinuity of the terminal bubble rise velocity has occurred. It is verified that the velocity jump in this study doesn't arise from the change in the bubble shape caused by the elastic effect. It is shown that effective Reynolds and Morton numbers allow us to systematically organize the bubble rise motion in the viscoelastic liquid with taking the shear-thinning effect into account. One can reasonably analyze viscoelastic bubble morphology by applying effective Reynolds and Morton numbers and Deborah number to a viscoelastic non-Newtonian system. |
| first_indexed | 2024-04-12T09:01:47Z |
| format | Article |
| id | doaj.art-a54eb17112ec4939bc119f93363cda6f |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-12T09:01:47Z |
| publishDate | 2015-01-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-a54eb17112ec4939bc119f93363cda6f2022-12-22T03:39:13ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612015-01-018182314-0061214-0061210.1299/transjsme.14-00612transjsmeThe motion of a bubble rising through viscoelastic polymeric liquidsMitsuhiro OHTA0Yasufumi HIEDA1Norihiko TOKUI2Shuichi IWATA3Institute of Technology and Science, The University of TokushimaGraduate School of Advanced Technology and Science, The University of TokushimaGraduate School of Advanced Technology and Science, The University of TokushimaGraduate School of Engineering, Nagoya Institute of TechnologyThe motion of a bubble rising in sodium acrylate polymer (SAP) solutions is experimentally explored. In this study, 0.3 and 0.6 wt% SAP solutions with shear-thinning and elastic properties are prepared. The bubble rise motion depending on the value of the suspending viscosity is examined covering from small to large-sized bubbles. Consequently, it is confirmed that bubbles rising in the SAP solutions have cusped shapes due to the elastic effect except for large deformed bubbles in the 0.6 wt% SAP solution. In addition, the bubble rise motion in the viscoelastic liquid is considered and discussed based on effective physical parameters and the terminal bubble rise velocity. In the experiment using the 0.6 wt% SAP solution, it is observed that a jump discontinuity of the terminal bubble rise velocity has occurred. It is verified that the velocity jump in this study doesn't arise from the change in the bubble shape caused by the elastic effect. It is shown that effective Reynolds and Morton numbers allow us to systematically organize the bubble rise motion in the viscoelastic liquid with taking the shear-thinning effect into account. One can reasonably analyze viscoelastic bubble morphology by applying effective Reynolds and Morton numbers and Deborah number to a viscoelastic non-Newtonian system.https://www.jstage.jst.go.jp/article/transjsme/81/823/81_14-00612/_pdf/-char/enploymeric liquidbubble rise motionshear-thinning effectelastic effecteffective dimensionless parameter |
| spellingShingle | Mitsuhiro OHTA Yasufumi HIEDA Norihiko TOKUI Shuichi IWATA The motion of a bubble rising through viscoelastic polymeric liquids Nihon Kikai Gakkai ronbunshu ploymeric liquid bubble rise motion shear-thinning effect elastic effect effective dimensionless parameter |
| title | The motion of a bubble rising through viscoelastic polymeric liquids |
| title_full | The motion of a bubble rising through viscoelastic polymeric liquids |
| title_fullStr | The motion of a bubble rising through viscoelastic polymeric liquids |
| title_full_unstemmed | The motion of a bubble rising through viscoelastic polymeric liquids |
| title_short | The motion of a bubble rising through viscoelastic polymeric liquids |
| title_sort | motion of a bubble rising through viscoelastic polymeric liquids |
| topic | ploymeric liquid bubble rise motion shear-thinning effect elastic effect effective dimensionless parameter |
| url | https://www.jstage.jst.go.jp/article/transjsme/81/823/81_14-00612/_pdf/-char/en |
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