Taking an injector nozzle as the research object

the Euler-Lagrange method together with an abrasion model was used to simulate the flow field and abrasive motion during the abrasive flow machining. Then

according to the dynamic pressure

turbulent kinetic energy

abrasive velocity and erosion rate simulated under different abrasive shapes

the influence of abrasive shape factor on erosion effect was explored. Results show that the erosion rate is inversely proportional to the abrasive shape factor. That is to say

use of a smaller abrasive shape factor can increase the erosion rate. The erosion rate with an abrasive shape factor of 0.3 reaches its maximum at the inlet of nozzle

which is 86.6% higher than with an abrasive shape factor of 0.7. Moreover

the shape of abrasive grain also has a relatively large influence on the erosion location of workpiece surface.