Convective instability-induced mixing and its parameterization using large eddy simulation
文献类型：期刊论文
| 作者 | McWilliams, James C.; Wang, Dongxiao4; Gao, Xiaoqian1; Dong, Changming; Liang, Junhong3; Yang, Jingsong1; Li, Guojing4 |
| 刊名 | OCEAN MODELLING
 |
| 出版日期 | 2019 |
| 卷号 | 137页码:40 |
| 关键词 | Convective mixing Large eddy simulation Hydrothermal plume Parameterization |
| ISSN号 | 1463-5003 |
| DOI | 10.1016/j.ocemod.2019.03.008 |
| 英文摘要 | A large eddy simulation (LES) model is applied to study convective instability processes driven by hydrothermal exhalations. The process of convective mixing induced by a bottom heating source is examined in a stratified and rotating frame. The control case of numerical experiment is configured with the horizontal and vertical resolution 5 m located at 35 degrees S. Its results show that the three-dimensional structure of the hydrothermal plume displays an umbrella shape. A strong clockwise vortex above the vent is present and the axis of the vortex is tilted with organized precession. A series of numerical experiments are conducted to test the sensitivity of three characteristic parameters (eddy viscosity (K), maximum plume rise height (Z(max)) and the intensity of the vortex (I-vortex)) to three variables: heat flux from the vent (HF), rotation rate (f) and background stratification (N). Based on the sensitivity experiments, parameterizations of eddy viscosity and maximum plume rise height with respect to HF, f and N are obtained. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17730]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Ocean Modeling & Observat Lab, Nanjing 210044, Jiangsu, Peoples R China 2.Second Inst Oceanog, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Zhejiang, Peoples R China 3.Dong, Changming; McWilliams, James C.] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA 4.Louisiana State Univ, Dept Oceanog & Coastal Sci, Baton Rouge, LA 70803 USA 5.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | McWilliams, James C.,Wang, Dongxiao,Gao, Xiaoqian,et al. Convective instability-induced mixing and its parameterization using large eddy simulation[J]. OCEAN MODELLING,2019,137:40, 51. |
| APA | McWilliams, James C..,Wang, Dongxiao.,Gao, Xiaoqian.,Dong, Changming.,Liang, Junhong.,...&Li, Guojing.(2019).Convective instability-induced mixing and its parameterization using large eddy simulation.OCEAN MODELLING,137,40. |
| MLA | McWilliams, James C.,et al."Convective instability-induced mixing and its parameterization using large eddy simulation".OCEAN MODELLING 137(2019):40. |
入库方式： OAI收割
来源：南海海洋研究所
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