Lattice-Boltzmann simulation of coalescence-driven island coarsening
A two-dimensional lattice-Boltzmann model (LBM) with fluid-fluid interactions was used to simulate first-order phase separation in a thin fluid film. The intermediate asymptotic time dependence of the mean island size, island number concentration, and polydispersity were determined and compared with...
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| Veröffentlicht in: | The Journal of chemical physics 2004-10, Vol.121 (16), p.7987-7995 |
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| container_title | The Journal of chemical physics |
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| creator | Başağaoğlu, Hakan Green, Christopher T Meakin, Paul McCoy, Benjamin J |
| description | A two-dimensional lattice-Boltzmann model (LBM) with fluid-fluid interactions was used to simulate first-order phase separation in a thin fluid film. The intermediate asymptotic time dependence of the mean island size, island number concentration, and polydispersity were determined and compared with the predictions of the distribution-kinetics model. The comparison revealed that the combined effects of growth, coalescence, and Ostwald ripening control the phase transition process in the LBM simulations. However, the overall process is dominated by coalescence, which is independent of island mass. As the phase transition advances, the mean island size increases, the number of islands decrease, and the polydispersity approaches unity, which conforms to the predictions of the distribution-kinetics model. The effects of the domain size on the intermediate asymptotic island size distribution, scaling form of the island size distribution, and the crossover to the long-term asymptotic behavior were elucidated. |
| doi_str_mv | 10.1063/1.1804158 |
| format | Article |
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The intermediate asymptotic time dependence of the mean island size, island number concentration, and polydispersity were determined and compared with the predictions of the distribution-kinetics model. The comparison revealed that the combined effects of growth, coalescence, and Ostwald ripening control the phase transition process in the LBM simulations. However, the overall process is dominated by coalescence, which is independent of island mass. As the phase transition advances, the mean island size increases, the number of islands decrease, and the polydispersity approaches unity, which conforms to the predictions of the distribution-kinetics model. 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The intermediate asymptotic time dependence of the mean island size, island number concentration, and polydispersity were determined and compared with the predictions of the distribution-kinetics model. The comparison revealed that the combined effects of growth, coalescence, and Ostwald ripening control the phase transition process in the LBM simulations. However, the overall process is dominated by coalescence, which is independent of island mass. As the phase transition advances, the mean island size increases, the number of islands decrease, and the polydispersity approaches unity, which conforms to the predictions of the distribution-kinetics model. The effects of the domain size on the intermediate asymptotic island size distribution, scaling form of the island size distribution, and the crossover to the long-term asymptotic behavior were elucidated.</description><subject>AGGREGATION</subject><subject>BUBBLY SUSPENSIONS</subject><subject>COALESCENCE</subject><subject>COMPUTERIZED SIMULATION</subject><subject>DYNAMICS</subject><subject>EQUATION</subject><subject>FLUIDS</subject><subject>GEOSCIENCES, 75 - CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>GROWTH</subject><subject>INTERACTIONS</subject><subject>KINETICS</subject><subject>PHASE TRANSFORMATIONS</subject><subject>SIZE DISTRIBUTION</subject><subject>SYSTEMS</subject><subject>TIME DEPENDENCE</subject><subject>TWO-DIMENSIONAL CALCULATIONS</subject><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNpF0EtLxDAUBeAgijOOLvwDUjeCi4739pE2Sx2fMOBG1yFNbzTSJtqkgv56O8yAq7u4H4fDYewUYYnA8ytcYg0FlvUemyPUIq24gH02B8gwFRz4jB2F8AEAWGXFIZthWdRlxnHObtcqRqspvfFd_O2Vc0mw_dipaL1LvEm0Vx0FTW4y7WC_ySU2dMq1m88QyFn3dswOjOoCnezugr3e372sHtP188PT6nqd6hyqmBI3ZZMZVRsoWtKGmlYp1LotC20g09hUuiJsQKPKFdSARFyJNkOuUFUiX7Dzba4P0cqgbST9rr1zpKMUmGWimMzF1nwO_mukEGVvp_rdVJn8GCTnohIg-AQvt1APPoSBjPwcbK-GH4kgN7NKlLtZJ3u2Cx2bntp_udsx_wPom3Mj</recordid><startdate>20041022</startdate><enddate>20041022</enddate><creator>Başağaoğlu, Hakan</creator><creator>Green, Christopher T</creator><creator>Meakin, Paul</creator><creator>McCoy, Benjamin J</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20041022</creationdate><title>Lattice-Boltzmann simulation of coalescence-driven island coarsening</title><author>Başağaoğlu, Hakan ; Green, Christopher T ; Meakin, Paul ; McCoy, Benjamin J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c307t-e6f5b2fa8f04decfebdaa1ccd54cf02c1b7c7e1b0c1a3a0801ee6a9d216a1a793</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>AGGREGATION</topic><topic>BUBBLY SUSPENSIONS</topic><topic>COALESCENCE</topic><topic>COMPUTERIZED SIMULATION</topic><topic>DYNAMICS</topic><topic>EQUATION</topic><topic>FLUIDS</topic><topic>GEOSCIENCES, 75 - CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>GROWTH</topic><topic>INTERACTIONS</topic><topic>KINETICS</topic><topic>PHASE TRANSFORMATIONS</topic><topic>SIZE DISTRIBUTION</topic><topic>SYSTEMS</topic><topic>TIME DEPENDENCE</topic><topic>TWO-DIMENSIONAL CALCULATIONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Başağaoğlu, Hakan</creatorcontrib><creatorcontrib>Green, Christopher T</creatorcontrib><creatorcontrib>Meakin, Paul</creatorcontrib><creatorcontrib>McCoy, Benjamin J</creatorcontrib><creatorcontrib>Idaho National Laboratory (INL)</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>The Journal of chemical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Başağaoğlu, Hakan</au><au>Green, Christopher T</au><au>Meakin, Paul</au><au>McCoy, Benjamin J</au><aucorp>Idaho National Laboratory (INL)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Lattice-Boltzmann simulation of coalescence-driven island coarsening</atitle><jtitle>The Journal of chemical physics</jtitle><addtitle>J Chem Phys</addtitle><date>2004-10-22</date><risdate>2004</risdate><volume>121</volume><issue>16</issue><spage>7987</spage><epage>7995</epage><pages>7987-7995</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><abstract>A two-dimensional lattice-Boltzmann model (LBM) with fluid-fluid interactions was used to simulate first-order phase separation in a thin fluid film. 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| ispartof | The Journal of chemical physics, 2004-10, Vol.121 (16), p.7987-7995 |
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| source | AIP Journals Complete; AIP Digital Archive |
| subjects | AGGREGATION BUBBLY SUSPENSIONS COALESCENCE COMPUTERIZED SIMULATION DYNAMICS EQUATION FLUIDS GEOSCIENCES, 75 - CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY GROWTH INTERACTIONS KINETICS PHASE TRANSFORMATIONS SIZE DISTRIBUTION SYSTEMS TIME DEPENDENCE TWO-DIMENSIONAL CALCULATIONS |
| title | Lattice-Boltzmann simulation of coalescence-driven island coarsening |
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