Two-Dimensional Numerical Simulation for Flow Pattern Transition of Thermal-Solutal Capillary Convection in an Annular Pool
In order to understand the transition characteristics of the thermal-solutal capillary convection in an annular pool, a series of two-dimensional numerical simulations were conducted. The bottom of the pool is adiabatic rigid wall and the top is adiabatic and non-deformable free surface. The inner a...
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| Veröffentlicht in: | Microgravity science and technology 2013-12, Vol.25 (4), p.225-230 |
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| creator | Li, You-Rong Zhou, Yong-Li Tang, Jing-Wen Gong, Zhen-Xing |
| description | In order to understand the transition characteristics of the thermal-solutal capillary convection in an annular pool, a series of two-dimensional numerical simulations were conducted. The bottom of the pool is adiabatic rigid wall and the top is adiabatic and non-deformable free surface. The inner and outer cylindrical walls maintain at constant temperature and solute concentration, respectively. The thermo-capillary force is supposed to equal to the solute-capillary force, but their directions are contrary. Results show that the thermal-solutal capillary convection is steady at a small Reylonds number. When the capillary Reynolds number exceeds a critical value, the steady flow transits into unstable thermal-solutal capillary convection. The transition from the steady to oscillatory flow undergoes a Hopf bifurcation. Furthermore, the effects of the liquid layer aspect ratio, the radius ratio, the Prandtl number and the Lewis number on the onset of flow pattern transition are discussed. The physical mechanism of the unstable thermal-solutal capillary convection is also analyzed. |
| doi_str_mv | 10.1007/s12217-013-9343-z |
| format | Article |
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The bottom of the pool is adiabatic rigid wall and the top is adiabatic and non-deformable free surface. The inner and outer cylindrical walls maintain at constant temperature and solute concentration, respectively. The thermo-capillary force is supposed to equal to the solute-capillary force, but their directions are contrary. Results show that the thermal-solutal capillary convection is steady at a small Reylonds number. When the capillary Reynolds number exceeds a critical value, the steady flow transits into unstable thermal-solutal capillary convection. The transition from the steady to oscillatory flow undergoes a Hopf bifurcation. Furthermore, the effects of the liquid layer aspect ratio, the radius ratio, the Prandtl number and the Lewis number on the onset of flow pattern transition are discussed. The physical mechanism of the unstable thermal-solutal capillary convection is also analyzed.</description><identifier>ISSN: 0938-0108</identifier><identifier>EISSN: 1875-0494</identifier><identifier>DOI: 10.1007/s12217-013-9343-z</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Adiabatic flow ; Aerospace Technology and Astronautics ; Classical and Continuum Physics ; Convection ; Engineering ; Flow pattern ; Free surfaces ; Original Article ; Space Exploration and Astronautics ; Space Sciences (including Extraterrestrial Physics ; Steady flow</subject><ispartof>Microgravity science and technology, 2013-12, Vol.25 (4), p.225-230</ispartof><rights>Springer Science+Business Media Dordrecht 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c415t-3bb340daa28cb0c276db2a6b1ba957b7eece7c146be39fc74873f8f67294aa4c3</citedby><cites>FETCH-LOGICAL-c415t-3bb340daa28cb0c276db2a6b1ba957b7eece7c146be39fc74873f8f67294aa4c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12217-013-9343-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12217-013-9343-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Li, You-Rong</creatorcontrib><creatorcontrib>Zhou, Yong-Li</creatorcontrib><creatorcontrib>Tang, Jing-Wen</creatorcontrib><creatorcontrib>Gong, Zhen-Xing</creatorcontrib><title>Two-Dimensional Numerical Simulation for Flow Pattern Transition of Thermal-Solutal Capillary Convection in an Annular Pool</title><title>Microgravity science and technology</title><addtitle>Microgravity Sci. 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Furthermore, the effects of the liquid layer aspect ratio, the radius ratio, the Prandtl number and the Lewis number on the onset of flow pattern transition are discussed. 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Technol</stitle><date>2013-12-01</date><risdate>2013</risdate><volume>25</volume><issue>4</issue><spage>225</spage><epage>230</epage><pages>225-230</pages><issn>0938-0108</issn><eissn>1875-0494</eissn><abstract>In order to understand the transition characteristics of the thermal-solutal capillary convection in an annular pool, a series of two-dimensional numerical simulations were conducted. The bottom of the pool is adiabatic rigid wall and the top is adiabatic and non-deformable free surface. The inner and outer cylindrical walls maintain at constant temperature and solute concentration, respectively. The thermo-capillary force is supposed to equal to the solute-capillary force, but their directions are contrary. Results show that the thermal-solutal capillary convection is steady at a small Reylonds number. When the capillary Reynolds number exceeds a critical value, the steady flow transits into unstable thermal-solutal capillary convection. The transition from the steady to oscillatory flow undergoes a Hopf bifurcation. Furthermore, the effects of the liquid layer aspect ratio, the radius ratio, the Prandtl number and the Lewis number on the onset of flow pattern transition are discussed. The physical mechanism of the unstable thermal-solutal capillary convection is also analyzed.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s12217-013-9343-z</doi><tpages>6</tpages></addata></record> |
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| subjects | Adiabatic flow Aerospace Technology and Astronautics Classical and Continuum Physics Convection Engineering Flow pattern Free surfaces Original Article Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Steady flow |
| title | Two-Dimensional Numerical Simulation for Flow Pattern Transition of Thermal-Solutal Capillary Convection in an Annular Pool |
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