| Updated Lagrangian particle hydrodynamics (ULPH) modeling for free-surface fluid flows | |
| Yan, Jiale1,2,3; Li, Shaofan4; Kan XY(阚兴玉)5; Lv, Pengyu1,2; Zhang, AMan3; Duan, Huiling1,2 | |
| Corresponding Author | Duan, Huiling([email protected]) |
| Source Publication | COMPUTATIONAL MECHANICS
 |
| 2023-09-08 | |
| Pages | 20 |
| ISSN | 0178-7675 |
| Abstract | 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. |
| Keyword | 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 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001061553100002 |
| WOS Keyword | MATERIAL POINT METHOD ; IMPROVED SPH METHOD ; LEVEL-SET METHOD ; NUMERICAL-SIMULATION ; ALGORITHM |
| WOS Research Area | Mathematics ; Mechanics |
| WOS Subject | Mathematics, Interdisciplinary Applications ; Mechanics |
| Funding Project | 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] |
| Funding Organization | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Laoshan Laboratory |
| Classification | 一类 |
| Ranking | 3 |
| Contributor | Duan, Huiling |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92952 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Peking Univ, Coll Engn, Dept Mech & Engn Sci, State Key Lab Turbulence & Complex Syst,BIC ESAT, Beijing 100871, Peoples R China; 2.Laoshan Lab, Joint Lab Marine Hydrodynam & Ocean Engn, Qingdao 266237, Peoples R China; 3.Harbin Engn Univ, Coll Shipbuilding Engn, Harbin 150001, Peoples R China; 4.Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA; 5.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Yan, Jiale,Li, Shaofan,Kan XY,et al. Updated Lagrangian particle hydrodynamics (ULPH) modeling for free-surface fluid flows[J]. COMPUTATIONAL MECHANICS,2023:20.Rp_Au:Duan, Huiling |
| APA | Yan, Jiale,Li, Shaofan,阚兴玉,Lv, Pengyu,Zhang, AMan,&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. |
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| Jp2023A106.pdf（4313KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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