Research Article
Numerical Investigation of Wind Erosion to the Grooved Concrete Wall Surface under a Wind-Blown Sand Movement
Table 3
Erosion rates of grooved and smooth wall surfaces under different groove numbers and impact angles.
| | Impact angle (°) | Groove number | Erosion rate of grooved wall surface (mg/m2·s) | Erosion rate of smooth wall surface (mg/m2·s) | Optimization rate (%) |
| | 30 | 1 | 8.943E + 01 | 7.431E + 01 | −20.347 | | 3 | 1.120E + 02 | 7.418E + 01 | −50.984 | | 5 | 1.357E + 02 | 7.424E + 01 | −82.786 |
| | 45 | 1 | 1.282E + 02 | 1.214E + 02 | −5.601 | | 3 | 1.400E + 02 | 1.218E + 02 | −14.943 | | 5 | 1.494E + 02 | 1.217E + 02 | −22.761 |
| | 60 | 1 | 1.829E + 02 | 1.849E + 02 | 1.082 | | 3 | 1.802E + 02 | 1.850E + 02 | 2.595 | | 5 | 1.773E + 02 | 1.847E + 02 | 4.006 |
| | 75 | 1 | 2.862E + 02 | 2.994E + 02 | 4.409 | | 3 | 2.629E + 02 | 2.993E + 02 | 12.162 | | 5 | 2.432E + 02 | 2.995E + 02 | 18.798 |
| | 90 | 1 | 3.447E + 02 | 3.632E + 02 | 5.094 | | 3 | 3.098E + 02 | 3.627E + 02 | 14.585 | | 5 | 2.799E + 02 | 3.629E + 02 | 22.871 |
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