Lattice Boltzmann Simulation of Multiple Bubbles Motion under Gravity
The motion of multiple bubbles under gravity in two dimensions is numerically studied through the lattice Boltzmann method for the Eotvos number ranging from 1 to 12. Two kinds of initial arrangement are taken into account: vertical and horizontal arrangement. In both cases the effects of Eotvos num...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Abstract and Applied Analysis |
| Online Access: | http://dx.doi.org/10.1155/2015/706034 |
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| author | Deming Nie Jianzhong Lin Limin Qiu Xiaobin Zhang |
| author_facet | Deming Nie Jianzhong Lin Limin Qiu Xiaobin Zhang |
| author_sort | Deming Nie |
| collection | DOAJ |
| description | The motion of multiple bubbles under gravity in two dimensions is numerically studied through the lattice Boltzmann method for the Eotvos number ranging from 1 to 12. Two kinds of initial arrangement are taken into account: vertical and horizontal arrangement. In both cases the effects of Eotvos number on the bubble coalescence and rising velocity are investigated. For the vertical arrangement, it has been found that the coalescence pattern is similar. The first coalescence always takes place between the two uppermost bubbles. And the last coalescence always takes place between the coalesced bubble and the bottommost bubble. For four bubbles in a horizontal arrangement, the outermost bubbles travel into the wake of the middle bubbles in all cases, which allows the bubbles to coalesce. The coalescence pattern is more complex for the case of eight bubbles, which strongly depends on the Eotvos number. |
| format | Article |
| id | doaj-art-16f2ed78ea994e71be2df1dc4129bc20 |
| institution | OA Journals |
| issn | 1085-3375 1687-0409 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Abstract and Applied Analysis |
| spelling | doaj-art-16f2ed78ea994e71be2df1dc4129bc202025-08-20T02:04:53ZengWileyAbstract and Applied Analysis1085-33751687-04092015-01-01201510.1155/2015/706034706034Lattice Boltzmann Simulation of Multiple Bubbles Motion under GravityDeming Nie0Jianzhong Lin1Limin Qiu2Xiaobin Zhang3Institute of Fluid Mechanics, China Jiliang University, Hangzhou 310018, ChinaInstitute of Fluid Mechanics, China Jiliang University, Hangzhou 310018, ChinaInstitute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, ChinaInstitute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, ChinaThe motion of multiple bubbles under gravity in two dimensions is numerically studied through the lattice Boltzmann method for the Eotvos number ranging from 1 to 12. Two kinds of initial arrangement are taken into account: vertical and horizontal arrangement. In both cases the effects of Eotvos number on the bubble coalescence and rising velocity are investigated. For the vertical arrangement, it has been found that the coalescence pattern is similar. The first coalescence always takes place between the two uppermost bubbles. And the last coalescence always takes place between the coalesced bubble and the bottommost bubble. For four bubbles in a horizontal arrangement, the outermost bubbles travel into the wake of the middle bubbles in all cases, which allows the bubbles to coalesce. The coalescence pattern is more complex for the case of eight bubbles, which strongly depends on the Eotvos number.http://dx.doi.org/10.1155/2015/706034 |
| spellingShingle | Deming Nie Jianzhong Lin Limin Qiu Xiaobin Zhang Lattice Boltzmann Simulation of Multiple Bubbles Motion under Gravity Abstract and Applied Analysis |
| title | Lattice Boltzmann Simulation of Multiple Bubbles Motion under Gravity |
| title_full | Lattice Boltzmann Simulation of Multiple Bubbles Motion under Gravity |
| title_fullStr | Lattice Boltzmann Simulation of Multiple Bubbles Motion under Gravity |
| title_full_unstemmed | Lattice Boltzmann Simulation of Multiple Bubbles Motion under Gravity |
| title_short | Lattice Boltzmann Simulation of Multiple Bubbles Motion under Gravity |
| title_sort | lattice boltzmann simulation of multiple bubbles motion under gravity |
| url | http://dx.doi.org/10.1155/2015/706034 |
| work_keys_str_mv | AT demingnie latticeboltzmannsimulationofmultiplebubblesmotionundergravity AT jianzhonglin latticeboltzmannsimulationofmultiplebubblesmotionundergravity AT liminqiu latticeboltzmannsimulationofmultiplebubblesmotionundergravity AT xiaobinzhang latticeboltzmannsimulationofmultiplebubblesmotionundergravity |