| 基于LBGK方法的粘性流体晃动问题大涡模拟 |
| |
| 引用本文： | 丁全林,汪德爟,王玲玲.基于LBGK方法的粘性流体晃动问题大涡模拟[J].水科学进展,2009,20(5):652-657. |
| |
| 作者姓名： | 丁全林 汪德爟 王玲玲 |
| |
| 作者单位： | 1.河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 江苏, 南京, 210098; |
| |
| 基金项目： | 国家自然科学基金资助项目，教育部博士点基金资助项目，江苏省"青蓝工程"资助项目 |
| |
| 摘 要： | LBGK结合大涡紊流模型方法应用于粘性流体运动的数值模拟,并在LBGK方法中引入VOF概念,用于跟踪自由表面的运动.利用这种方法计算了贮液容器中粘性流体的自由晃动以及非线性激励下的一阶模态晃动,得到了侧壁上压强分布,并拟合了压力和弯距的估算公式.分析和实践表明,该方法对带自由表面不可压缩流体的数值模拟具有较高的精度.
|
| 关 键 词： | 粘性流体 LBGK 大涡模拟 VOF 自由表面 流体晃动 |
| 收稿时间： | 2008-09-10 |
LES of viscous liquid sloshing problem based on the LBGK method |
| |
| DING Quan-lin,WANG De-guan,WANG Ling-ling.LES of viscous liquid sloshing problem based on the LBGK method[J].Advances in Water Science,2009,20(5):652-657. |
| |
| Authors: | DING Quan-lin WANG De-guan WANG Ling-ling |
| |
| Affiliation: | 1.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, Hohai University, Nanjing 210098, China;2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China |
| |
| Abstract: | The Lattice Bhatnager Gross Krook(LBGK) method combined with the large eddy turbulent model is applied to the numerical simulation of the viscous flow,and the Volume of fluid(VOF) concept is introduced into the LBGK method,which is used to simulate the action of the free surface The free sloshing of the viscous liquid in a tank as well as the first mode sloshing excited by the nonlinear acceleration are simulated.The pressure distribution at the wall of tank is obtained.The equations of pressure force and bending moment are fitted.Both the theoretical analysis and the simulation result show that themethod in the paper has high precision in the simulation of the incompressible flows with a free surface. |
| |
| Keywords: | LBGK VOF |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《水科学进展》浏览原始摘要信息 |
|
点击此处可从《水科学进展》下载全文 |
|
