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Determining pressure from velocity via physics-informed neural network

文献类型：期刊论文

作者Cai, Zemin5; Lin, Xiangqi5; Liu, Tianshu4; Wu, Fan2,3; Wang, Shizhao2,3; Liu, Yun1; Wang SZ(王士召)
刊名EUROPEAN JOURNAL OF MECHANICS B-FLUIDS
出版日期2025
卷号109页码:1-21
关键词Pressure Velocity PINN Machine learning Neural network Flow Navier-Stokes equations
ISSN号0997-7546
DOI10.1016/j.euromechflu.2024.08.007
通讯作者Liu, Tianshu(tianshu.liu@wmich.edu)
英文摘要This paper describes a physics-informed neural network (PINN) for determining pressure from velocity where the Navier-Stokes (NS) equations are incorporated as a physical constraint, but the boundary condition is not explicitly imposed. The exact solution of the NS equations for the oblique Hiemenz flow is utilized to evaluate the accuracy of the PINN and the effects of the relevant factors including the boundary condition, data noise, number of collocation points, Reynolds number and impingement angle. In addition, the PINN is evaluated in the twodimensional flow over a NACA0012 airfoil based on computational fluid dynamics (CFD) simulation. Further, the PINN is applied to the velocity data of a flying hawkmoth (Manduca) obtained in high-speed schlieren visualizations, revealing some interesting pressure features associated with the vortex structures generated by the flapping wings. Overall, the PINN offers an alternative solution for the problem of pressure from velocity with the reasonable accuracy and robustness.
WOS关键词FLUID ; FLOW ; FIELDS ; PIV ; FORCES
资助项目National Natural Science Foundation of China[61876104] ; Guangdong Natural Science Foundation[2023A1515011449] ; Presidential Innovation Professorship and Iohn O. Hallquist Endowed Professorship at Western Michigan University
WOS研究方向Mechanics ; Physics
语种英语
WOS记录号WOS:001306804800001
资助机构National Natural Science Foundation of China ; Guangdong Natural Science Foundation ; Presidential Innovation Professorship and Iohn O. Hallquist Endowed Professorship at Western Michigan University
源URL[http://dspace.imech.ac.cn/handle/311007/96499]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Liu, Tianshu
作者单位1.Purdue Univ Northwest, Dept Mech & Civil Engn, Westville, IN USA
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Mech, LNM, Beijing, Peoples R China
4.Western Michigan Univ, Dept Mech & Aerosp Engn, Kalamazoo, MI 49008 USA
5.Shantou Univ, Dept Elect Engn, Shantou, Peoples R China
推荐引用方式
GB/T 7714		 Cai, Zemin,Lin, Xiangqi,Liu, Tianshu,et al. Determining pressure from velocity via physics-informed neural network[J]. EUROPEAN JOURNAL OF MECHANICS B-FLUIDS,2025,109:1-21.
APA Cai, Zemin.,Lin, Xiangqi.,Liu, Tianshu.,Wu, Fan.,Wang, Shizhao.,...&王士召.(2025).Determining pressure from velocity via physics-informed neural network.EUROPEAN JOURNAL OF MECHANICS B-FLUIDS,109,1-21.
MLA Cai, Zemin,et al."Determining pressure from velocity via physics-informed neural network".EUROPEAN JOURNAL OF MECHANICS B-FLUIDS 109(2025):1-21.

入库方式： OAI收割

来源：力学研究所

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