Updated Lagrangian particle hydrodynamics (ULPH) modeling for free-surface fluid flows
文献类型：期刊论文
| 作者 | Yan, Jiale3,4,5; Li, Shaofan1; Kan, Xingyu2; Lv, Pengyu4,5; Zhang, A-Man3; Duan, Huiling4,5 |
| 刊名 | COMPUTATIONAL MECHANICS
 |
| 出版日期 | 2023-09-08 |
| 页码 | 20 |
| ISSN号 | 0178-7675 |
| 关键词 | Computational fluid dynamics Density diffusive term Free-surface flows Free-surface detection Peridynamics Updated Lagrangian particle hydrodynamics (ULPH) |
| DOI | 10.1007/s00466-023-02368-x |
| 通讯作者 | Duan, Huiling(hlduan@pku.edu.cn) |
| 英文摘要 | In this work, we develop an accurate and stable Updated Lagrangian particle hydrodynamics (ULPH) modeling to simulate complicated free-surface fluid flows. Leveraging its inherent properties as a Lagrangian particle method, the ULPH has natural advantages in modeling free-surface flows. However, similar to other meshfreemethods, ULPH is subject to numerical instabilities and non-physical pressure fluctuations when solving the Navier-Stokes equation in the explicit numerical scheme. Within the framework of the ULPH method, several innovative enhanced treatment techniques have been proposed and combined with other previouly developed methods to establish an ULPH single-phase flow model. The main novelties of these techniques are the derivation of the density diffusive term in the continuum equation inspired by delta-SPH to eliminate pressure oscillations, and the proposal of a new free-surface search algorithm to determine the particles and their normal vectors at the free surface. The ULPH is a nonlocal fluid dynamics model, which is in fact a prototype of Peridynamics in fluid mechanics. Considering the nature of free-surface fluid flows, we strategically implement the diagonalization and renormalization of the shape tensor for particles located in close proximity to the free-surface region to improve the numerical stability of computations. Several complex free-surface flow benchmark examples have been simulated, which confirms that the enhanced treatment techniques can effectively capture the details of surface flow evolution and maintain long-term stability. Moreover, the qualitative and quantitative analyses of the results indicate that the proposed ULPH surface flow model is highly accurate and stable for simulating complex free-surface fluid flows. |
| WOS关键词 | MATERIAL POINT METHOD ; IMPROVED SPH METHOD ; LEVEL-SET METHOD ; NUMERICAL-SIMULATION ; ALGORITHM |
| 资助项目 | National Natural Science Foundation of China[12293000] ; National Natural Science Foundation of China[12293001] ; National Natural Science Foundation of China[11988102] ; National Natural Science Foundation of China[12202011] ; National Natural Science Foundation of China[12172006] ; China Postdoctoral Science Foundation[2022M710190] ; Laoshan Laboratory[LSKJ202200500] |
| WOS研究方向 | Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001061553100002 |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Laoshan Laboratory |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92951]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Duan, Huiling |
| 作者单位 | 1.Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA 2.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China 3.Harbin Engn Univ, Coll Shipbuilding Engn, Harbin 150001, Peoples R China 4.Laoshan Lab, Joint Lab Marine Hydrodynam & Ocean Engn, Qingdao 266237, Peoples R China 5.Peking Univ, Coll Engn, Dept Mech & Engn Sci, State Key Lab Turbulence & Complex Syst,BIC ESAT, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Jiale,Li, Shaofan,Kan, Xingyu,et al. Updated Lagrangian particle hydrodynamics (ULPH) modeling for free-surface fluid flows[J]. COMPUTATIONAL MECHANICS,2023:20. |
| APA | Yan, Jiale,Li, Shaofan,Kan, Xingyu,Lv, Pengyu,Zhang, A-Man,&Duan, Huiling.(2023).Updated Lagrangian particle hydrodynamics (ULPH) modeling for free-surface fluid flows.COMPUTATIONAL MECHANICS,20. |
| MLA | Yan, Jiale,et al."Updated Lagrangian particle hydrodynamics (ULPH) modeling for free-surface fluid flows".COMPUTATIONAL MECHANICS (2023):20. |
入库方式： OAI收割
来源：力学研究所
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