Modeling assumption
The restrictive assumptions have been used to derive erosion models
due to the complexity of the erosion process. In view of the blade working
environment, the paper makes the following assumptions:
(1) The flue gas turbine is always in the same working condition.
(2) The particles are considered rigid spheres of uniform radius.
(3) Blade erosion damage formed by the particles at different
positions are independent of each other.
(4) The erosion is supposed impinging the target surface at impact
angle α = 90∘.This paper does not consider the influence of
erosion angle.