| A particle-resolved direct numerical simulation method for the compressible gas flow and arbitrary shape solid moving with a uniform framework | |
Meng BQ(孟宝清)1,2; Zeng, Junsheng3; Li, Shuai3,4 ; Tian, Baolin3; Liu, Jinhong5
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| Corresponding Author | Meng, Baoqing([email protected]) ; Zeng, Junsheng([email protected]) |
| Source Publication | COMPUTER PHYSICS COMMUNICATIONS
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| 2024-10-01 | |
| Volume | 303Pages:22 |
| ISSN | 0010-4655 |
| Abstract | Compressible particle-resolved direct numerical simulations (PR-DNS) are widely used in explosion-driven dispersion of particles simulations, multiphase turbulence modelling, and stage separation for two-stage-toorbit vehicles. The direct forcing immersed boundary method (IBM) is a promising method and widely applied in low speed flow while there is few research regarding compressible flows. We developed a novel IBM to resolve supersonic and hypersonic gas flows interacting with irregularly shaped multi-body particle. The main innovation is that current method can solve the interaction of particles and high-speed fluids, particle translation and rotation, and collision among complex-shaped particles within a uniform framework. Specially, high conservation and computation consumption are strictly satisfied, which is critical for resolving the high speed compressible flow feature. To avoid the non-physical flow penetration around particle surface, an special iterative algorithm is specially derived to handle the coupling force between the gas and particles. The magnitude of the velocity difference error could be reduced by 6-8 orders compared to that of a previous method. Additionally, aerodynamic force integration was achieved using the momentum equation to ensure momentum conservation for two-phase coupling. A high-efficiency cell-type identification method for each step was proposed, and mapping among LPs and cells was used again to select the immersed cells. As for the collision force calculation, the complex shape of a particle was represented by a cloud of LPs and the mapping of LPs and cells was used to reduce the complexity of the algorithm for contact searching. The repetitive use of the mapping relationship could reduce the internal memory and improve the efficiency of the proposed algorithm. Moreover, various verification cases were conducted to evaluate the simulation performance of the proposed algorithm, including two- and three-dimensional moving and motionless particles with regular and complex shapes interacting with high-speed flow. Specifically, an experiment involving a shock passing through a sphere was designed and conducted to provide high-precision data. The corresponding results of the large-scale numerical simulation agree well with those obtained experimentally. The current method supports flow simulations at a particle-resolved scale in engineering. |
| Keyword | Compressible multiphase flow Particle -resolved direct numerical simulation Immersed boundary method Flux conservation |
| DOI | 10.1016/j.cpc.2024.109266 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001259038500001 |
| WOS Keyword | IMMERSED-BOUNDARY METHOD ; FLUID-STRUCTURE INTERACTION ; FICTITIOUS DOMAIN METHOD ; SHOCK ; INTERFACE ; PARALLEL |
| WOS Research Area | Computer Science ; Physics |
| WOS Subject | Computer Science, Interdisciplinary Applications ; Physics, Mathematical |
| Funding Project | Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620203] ; National Natural Science Foundation of China[12002063] ; National Natural Science Foundation of China[91852207] ; National Natural Science Foundation of China[12202072] ; National Key Project[GJXM92579] |
| Funding Organization | Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Project |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Meng, Baoqing ; Zeng, Junsheng |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95880 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 101408, Peoples R China; 3.Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China; 4.China Acad Engn Phys, Grad Sch, Beijing 100088, Peoples R China; 5.Inst Fluid Phys, Mianyang 621900, Peoples R China |
| Recommended Citation GB/T 7714 | Meng BQ,Zeng, Junsheng,Li, Shuai,et al. A particle-resolved direct numerical simulation method for the compressible gas flow and arbitrary shape solid moving with a uniform framework[J]. COMPUTER PHYSICS COMMUNICATIONS,2024,303:22.Rp_Au:Meng, Baoqing, Zeng, Junsheng |
| APA | 孟宝清,Zeng, Junsheng,Li, Shuai,Tian, Baolin,&Liu, Jinhong.(2024).A particle-resolved direct numerical simulation method for the compressible gas flow and arbitrary shape solid moving with a uniform framework.COMPUTER PHYSICS COMMUNICATIONS,303,22. |
| MLA | 孟宝清,et al."A particle-resolved direct numerical simulation method for the compressible gas flow and arbitrary shape solid moving with a uniform framework".COMPUTER PHYSICS COMMUNICATIONS 303(2024):22. |
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