Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement
Wind erosion to the grooved concrete wall surface under a wind-blown sand movement was numerically studied. Particularly, the influencing factors that affect the wind erosion to the grooved concrete wall surface were systematically investigated by using the RNG k−ε turbulence model combined with the...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/1604186 |
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| author | Shanqun Chen Runchao Tang Longzhu Zhang Bin Liao |
| author_facet | Shanqun Chen Runchao Tang Longzhu Zhang Bin Liao |
| author_sort | Shanqun Chen |
| collection | DOAJ |
| description | Wind erosion to the grooved concrete wall surface under a wind-blown sand movement was numerically studied. Particularly, the influencing factors that affect the wind erosion to the grooved concrete wall surface were systematically investigated by using the RNG k−ε turbulence model combined with the discrete phase model (DPM). It was found that, under a relatively low impact angle, the damage mechanism to the grooved wall surface is wind-blown sand impact, and the erosion rates of the grooved wall surfaces are higher than those of the smooth wall surfaces. By contrast, under a relatively high impact angle, the damage mechanism to the grooved wall surface transfers to the microcutting effect, and the erosion rates show an opposite trend. The optimization rates between the erosion of grooved and smooth wall surfaces increase with increasing groove size or groove number. However, the damage mechanism to the grooved wall surface is hardly changed by expanding the groove area. The erosion rate distribution and the optimization rates of the groove wall surfaces are not significantly changed by adjusting the spacing between the grooves alone. When the groove shape changes from semicircular to rectangular, the erosion rate distribution is significantly changed, and the wear resistance of the changed grooved wall surface gets better. |
| format | Article |
| id | doaj-art-36de8b269d374bcea2b91f988542a2be |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-36de8b269d374bcea2b91f988542a2be2025-08-20T02:07:41ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/16041861604186Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand MovementShanqun Chen0Runchao Tang1Longzhu Zhang2Bin Liao3College of Architecture and Civil Engineering, Anhui Polytechnic University, Anhui, Wuhu 241000, ChinaCollege of Architecture and Civil Engineering, Anhui Polytechnic University, Anhui, Wuhu 241000, ChinaCollege of Architecture and Civil Engineering, Anhui Polytechnic University, Anhui, Wuhu 241000, ChinaCollege of Architecture and Civil Engineering, Anhui Polytechnic University, Anhui, Wuhu 241000, ChinaWind erosion to the grooved concrete wall surface under a wind-blown sand movement was numerically studied. Particularly, the influencing factors that affect the wind erosion to the grooved concrete wall surface were systematically investigated by using the RNG k−ε turbulence model combined with the discrete phase model (DPM). It was found that, under a relatively low impact angle, the damage mechanism to the grooved wall surface is wind-blown sand impact, and the erosion rates of the grooved wall surfaces are higher than those of the smooth wall surfaces. By contrast, under a relatively high impact angle, the damage mechanism to the grooved wall surface transfers to the microcutting effect, and the erosion rates show an opposite trend. The optimization rates between the erosion of grooved and smooth wall surfaces increase with increasing groove size or groove number. However, the damage mechanism to the grooved wall surface is hardly changed by expanding the groove area. The erosion rate distribution and the optimization rates of the groove wall surfaces are not significantly changed by adjusting the spacing between the grooves alone. When the groove shape changes from semicircular to rectangular, the erosion rate distribution is significantly changed, and the wear resistance of the changed grooved wall surface gets better.http://dx.doi.org/10.1155/2021/1604186 |
| spellingShingle | Shanqun Chen Runchao Tang Longzhu Zhang Bin Liao Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement Advances in Materials Science and Engineering |
| title | Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement |
| title_full | Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement |
| title_fullStr | Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement |
| title_full_unstemmed | Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement |
| title_short | Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement |
| title_sort | numerical investigation of wind erosion to the grooved concrete wall surface under a wind blown sand movement |
| url | http://dx.doi.org/10.1155/2021/1604186 |
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