Numerical Study of Fluid–Solid Interaction in Elastic Sluice Based on SPH Method
In this paper, the fluid–solid interaction problem involving structural movement and deformation is considered, and an SPH (smoothed particle hydrodynamics) interaction method is proposed to establish a numerical fluid–solid model and to correct the particle velocities in the momentum conservation e...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-10-01
|
| Series: | Water |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4441/15/21/3738 |
| _version_ | 1797631282152210432 |
|---|---|
| author | Jianwei Zhang Bingpeng Wang Qi Jiang Ge Hou Zhirui Li Hongze Liu |
| author_facet | Jianwei Zhang Bingpeng Wang Qi Jiang Ge Hou Zhirui Li Hongze Liu |
| author_sort | Jianwei Zhang |
| collection | DOAJ |
| description | In this paper, the fluid–solid interaction problem involving structural movement and deformation is considered, and an SPH (smoothed particle hydrodynamics) interaction method is proposed to establish a numerical fluid–solid model and to correct the particle velocities in the momentum conservation equations. It is found that, when the smoothing coefficient is equal to 0.93, the similarity of the free surface curves reaches up to 91.9%, and calculations are more accurate. Under the same working conditions, the classical model of elastic sluice discharge is established based on the SPH method and the finite element method, and the validity and accuracy of the model based on the SPH method are verified by analyzing the flow pattern of the sluice discharge, the opening of the elastic gate, and the change trend in the free liquid surface curve. On this basis, a number of characteristic points on the sluice gate are selected based on the SPH model to investigate the change rule of pressure at the fluid–solid interface, and the results are as follows: (1) based on the numerical model established by the SPH method, the flow pattern of the water, the opening of the elastic gate, and the change in the free liquid level curve are all in better agreement with the experimental results in the literature than those of the finite element method, and the computational results are also better; (2) the pressure of the solid on the fluid at each characteristic point is equal to the pressure of the fluid on the solid, which satisfies the principle of action–reaction and laterally verifies the nature of the dynamic boundary between the fluid and the solid, further verifying the validity of the program; and (3) in the process of sluice discharge, the elastic sluice presents a large force at both ends and a small force in the middle, meaning that the related research in this paper can act as a reference for flow–solid interaction problems related to sluice discharge. |
| first_indexed | 2024-03-11T11:19:43Z |
| format | Article |
| id | doaj.art-b02248bcf61848338ded5feb36df6131 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T11:19:43Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-b02248bcf61848338ded5feb36df61312023-11-10T15:15:10ZengMDPI AGWater2073-44412023-10-011521373810.3390/w15213738Numerical Study of Fluid–Solid Interaction in Elastic Sluice Based on SPH MethodJianwei Zhang0Bingpeng Wang1Qi Jiang2Ge Hou3Zhirui Li4Hongze Liu5College of Water Conservancy, North China University of Water Resources and Hydropower, Zhengzhou 450046, ChinaCollege of Water Conservancy, North China University of Water Resources and Hydropower, Zhengzhou 450046, ChinaCollege of Water Conservancy, North China University of Water Resources and Hydropower, Zhengzhou 450046, ChinaCollege of Water Conservancy, North China University of Water Resources and Hydropower, Zhengzhou 450046, ChinaCollege of Water Conservancy, North China University of Water Resources and Hydropower, Zhengzhou 450046, ChinaCollege of Water Conservancy, North China University of Water Resources and Hydropower, Zhengzhou 450046, ChinaIn this paper, the fluid–solid interaction problem involving structural movement and deformation is considered, and an SPH (smoothed particle hydrodynamics) interaction method is proposed to establish a numerical fluid–solid model and to correct the particle velocities in the momentum conservation equations. It is found that, when the smoothing coefficient is equal to 0.93, the similarity of the free surface curves reaches up to 91.9%, and calculations are more accurate. Under the same working conditions, the classical model of elastic sluice discharge is established based on the SPH method and the finite element method, and the validity and accuracy of the model based on the SPH method are verified by analyzing the flow pattern of the sluice discharge, the opening of the elastic gate, and the change trend in the free liquid surface curve. On this basis, a number of characteristic points on the sluice gate are selected based on the SPH model to investigate the change rule of pressure at the fluid–solid interface, and the results are as follows: (1) based on the numerical model established by the SPH method, the flow pattern of the water, the opening of the elastic gate, and the change in the free liquid level curve are all in better agreement with the experimental results in the literature than those of the finite element method, and the computational results are also better; (2) the pressure of the solid on the fluid at each characteristic point is equal to the pressure of the fluid on the solid, which satisfies the principle of action–reaction and laterally verifies the nature of the dynamic boundary between the fluid and the solid, further verifying the validity of the program; and (3) in the process of sluice discharge, the elastic sluice presents a large force at both ends and a small force in the middle, meaning that the related research in this paper can act as a reference for flow–solid interaction problems related to sluice discharge.https://www.mdpi.com/2073-4441/15/21/3738fluid–solid interactionsmoothed particle hydrodynamicsnumerical simulationsluice gate |
| spellingShingle | Jianwei Zhang Bingpeng Wang Qi Jiang Ge Hou Zhirui Li Hongze Liu Numerical Study of Fluid–Solid Interaction in Elastic Sluice Based on SPH Method Water fluid–solid interaction smoothed particle hydrodynamics numerical simulation sluice gate |
| title | Numerical Study of Fluid–Solid Interaction in Elastic Sluice Based on SPH Method |
| title_full | Numerical Study of Fluid–Solid Interaction in Elastic Sluice Based on SPH Method |
| title_fullStr | Numerical Study of Fluid–Solid Interaction in Elastic Sluice Based on SPH Method |
| title_full_unstemmed | Numerical Study of Fluid–Solid Interaction in Elastic Sluice Based on SPH Method |
| title_short | Numerical Study of Fluid–Solid Interaction in Elastic Sluice Based on SPH Method |
| title_sort | numerical study of fluid solid interaction in elastic sluice based on sph method |
| topic | fluid–solid interaction smoothed particle hydrodynamics numerical simulation sluice gate |
| url | https://www.mdpi.com/2073-4441/15/21/3738 |
| work_keys_str_mv | AT jianweizhang numericalstudyoffluidsolidinteractioninelasticsluicebasedonsphmethod AT bingpengwang numericalstudyoffluidsolidinteractioninelasticsluicebasedonsphmethod AT qijiang numericalstudyoffluidsolidinteractioninelasticsluicebasedonsphmethod AT gehou numericalstudyoffluidsolidinteractioninelasticsluicebasedonsphmethod AT zhiruili numericalstudyoffluidsolidinteractioninelasticsluicebasedonsphmethod AT hongzeliu numericalstudyoffluidsolidinteractioninelasticsluicebasedonsphmethod |