New Insights into the Estimation of Impact Load of Granular Flow against a Rigid Wall
The installation of a rigid wall is a main approach to mitigate a granular flow. The methods of the impact load against a rigid wall still remains a challenge. In this study, the progresses in the estimation of the impact load of granular flow against a rigid wall are introduced in detail. The influ...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/2777308 |
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| _version_ | 1850169457202167808 |
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| author | Xiao Siyou Yang Junwei Wei Zhongju |
| author_facet | Xiao Siyou Yang Junwei Wei Zhongju |
| author_sort | Xiao Siyou |
| collection | DOAJ |
| description | The installation of a rigid wall is a main approach to mitigate a granular flow. The methods of the impact load against a rigid wall still remains a challenge. In this study, the progresses in the estimation of the impact load of granular flow against a rigid wall are introduced in detail. The influences of the slope angle, the installed angle of rigid wall, the volume of granular flow are not fully considered into the present models. The discrete element method is employed to reveal the effects of these factors on the impact load. The numerical results show that the volume of granular flow is a key factor to determine the evolution of the impact load on a rigid wall. The dynamic impact load of granular flow at the initial stage is decided by the angle between the rigid wall and slope surface. If the installation angle is same, the slope angle mainly determines the static load of granular flow. Based on these findings, we propose simplified model that the relationship between the impact load and the multiple physical parameters, such as slope angle, installation angle, repose angle, flow height and flow velocity, basal friction angle, and the volume of granular flow, is taken into account. |
| format | Article |
| id | doaj-art-a1e1dfacebb1477e945be33d89dd16e6 |
| institution | OA Journals |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-a1e1dfacebb1477e945be33d89dd16e62025-08-20T02:20:42ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/2777308New Insights into the Estimation of Impact Load of Granular Flow against a Rigid WallXiao Siyou0Yang Junwei1Wei Zhongju2School of Mines and Civil EngineeringSchool of Mines and Civil EngineeringSchool of Mines and Civil EngineeringThe installation of a rigid wall is a main approach to mitigate a granular flow. The methods of the impact load against a rigid wall still remains a challenge. In this study, the progresses in the estimation of the impact load of granular flow against a rigid wall are introduced in detail. The influences of the slope angle, the installed angle of rigid wall, the volume of granular flow are not fully considered into the present models. The discrete element method is employed to reveal the effects of these factors on the impact load. The numerical results show that the volume of granular flow is a key factor to determine the evolution of the impact load on a rigid wall. The dynamic impact load of granular flow at the initial stage is decided by the angle between the rigid wall and slope surface. If the installation angle is same, the slope angle mainly determines the static load of granular flow. Based on these findings, we propose simplified model that the relationship between the impact load and the multiple physical parameters, such as slope angle, installation angle, repose angle, flow height and flow velocity, basal friction angle, and the volume of granular flow, is taken into account.http://dx.doi.org/10.1155/2022/2777308 |
| spellingShingle | Xiao Siyou Yang Junwei Wei Zhongju New Insights into the Estimation of Impact Load of Granular Flow against a Rigid Wall Shock and Vibration |
| title | New Insights into the Estimation of Impact Load of Granular Flow against a Rigid Wall |
| title_full | New Insights into the Estimation of Impact Load of Granular Flow against a Rigid Wall |
| title_fullStr | New Insights into the Estimation of Impact Load of Granular Flow against a Rigid Wall |
| title_full_unstemmed | New Insights into the Estimation of Impact Load of Granular Flow against a Rigid Wall |
| title_short | New Insights into the Estimation of Impact Load of Granular Flow against a Rigid Wall |
| title_sort | new insights into the estimation of impact load of granular flow against a rigid wall |
| url | http://dx.doi.org/10.1155/2022/2777308 |
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