Modeling of Particle Trajectory and Erosion of Large Rotor Blades

Table 1

Erosion parameters and geometry deterioration of one blade after one hour.

Erosion parameters	Different concentrations (mg/m^3)
	sand (0–1000 m)
	10	25	50	100	250	400	500
Sand particle rate (mg/s)	2.53	6.32	12.66	25.28	63.25	101.24	126.59
Ingested mass of sand (g)	9118.12	22751.19	45582.79	91002.2	227689.9	364483.2	455739.2
Erosion of blade (mg)	321.67	793.76	1568.49	3179.50	7820.65	12659.03	15734.07
Erosion of spinner (mg)	15.95	39.54	82.52	163.65	413.26	662.18	823.61
Reduction of chord at R75 (%)						0.1029	0.1183
Reduction of chord at tip (%)						0.1111	0.1503
Average reduction of R75 blade thickness (%)
Average reduction of tip blade thickness (%)					1.365	1.954	2.321
Decrease of blade length (%)