Testing
for Erosion-Corrosion Under Disturbed Flow Conditions Using a Rotating
Cylinder with a Stepped Surface |
by |
S. Nesic, J. Bienkowski, K. Bremhorst,* and K.-S. Yang ** |
Abstract |
Erosion-corrosion is most severe in the vicinity of flow disturbances.
In the past, erosion-corrosion under disturbed flow conditions has been
studied experimentally in flow loops and numerically by performing flow
simulations. In this study, a new, compact experimental setup was tested,
intended for the study of erosion-corrosion under disturbed flow conditions,
involving a rotating cylinder geometry with a sudden step. A thorough
characterization of this new setup was initiated, involving wall mass-transfer
measurements complemented with direct numerical simulation of the turbulent
flow around it. A large variation of the wall mass transfer rates behind
the step was measured, similar in character to the one obtained in flow
through a sudden pipe
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