Some articles on impingement angle:
... shape, hardness, impact velocity and impingement angle are primary factors along with the properties of the surface being eroded ... The impingement angle is one of the most important factors and is widely recognized in literature ... the maximum wear rate is found when the impingement angle is approximately 30°, whilst for non ductile materials the maximum wear rate occurs when the impingement angle is normal to the surface ...
Famous quotes containing the word angle:
“The inhabitants of earth behold commonly but the dark and shadowy under side of heavens pavement; it is only when seen at a favorable angle in the horizon, morning or evening, that some faint streaks of the rich lining of the clouds are revealed.”
—Henry David Thoreau (18171862)