Research Article
Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement
Table 5
Erosion rates of changed grooved and smooth wall surfaces under different wind velocities and impact angles.
| | Impact angle (°) | Wind velocity (m/s) | Erosion rate of changed grooved wall surface (mg/m2·s) | Erosion rate of smooth wall surface (mg/m2·s) | Optimization rate (%) |
| | 30 | 19 | 8.035E + 01 | 7.435E + 01 | −8.070 | | 23 | 1.204E + 02 | 1.057E + 02 | −13.907 | | 26 | 1.824E + 02 | 1.689E + 02 | −7.993 |
| | 45 | 19 | 1.181E + 02 | 1.214E + 02 | 2.718 | | 23 | 2.324E + 02 | 2.388E + 02 | 2.680 | | 26 | 3.070E + 02 | 3.158E + 02 | 2.787 |
| | 60 | 19 | 1.741E + 02 | 1.843E + 02 | 5.534 | | 23 | 3.466E + 02 | 3.680E + 02 | 5.815 | | 26 | 4.088E + 02 | 4.331E + 02 | 5.611 |
| | 75 | 19 | 2.818E + 02 | 2.998E + 02 | 6.004 | | 23 | 3.884E + 02 | 4.133E + 02 | 6.025 | | 26 | 5.061E + 02 | 5.384E + 02 | 5.999 |
| | 90 | 19 | 3.422E + 02 | 3.631E + 02 | 5.756 | | 23 | 4.588E + 02 | 4.868E + 02 | 5.752 | | 26 | 5.583E + 02 | 5.922E + 02 | 5.724 |
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