Abstract: This article studies the
erosion distributions and locations of the maximum erosion point
due to solid particles impacting on the outside wall in 90-deg
variable rectangular-section bends. The particle trajectory
computations are based on two gas flow fields, I.e., potential
flow and potential plus secondary flow. Finnie's model is used
to compute the erosion rate. The computed results are compared
with the experimental results for three 90-deg bends with radius
ratio R/D of 0.8, 1.2 and 1.6. It indicates that the erosion
distributions and maximum erosion locations obtained from
computations are in better agreement with experimental data, if
the secondary flow is taken into account.
Key words:
Gas-solid two phase flow Erosion by
solid particles Bend
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