La Houille Blanche
Number 7-8, Novembre 1988
|Page(s)||571 - 576|
|Published online||01 October 2009|
Modèle mathématique pour la prédiction de la vitesse d'érosion
Mathematical model predicting cavitation erosion rate
Institut de génie atomique, Ecole polytechnique fédérale de Lausanne
A mathematical model incorporating the erosion process and the internal hardening mechanisms has been proposed to predict cavitation erosion rate of alloys. It takes into account both the material properties and the hydrodynamic conditions of cavitation. According to this model, the eroding material is subjected to the stress pulse loading conditions originated from cavitation collapse. The spacial and the temporal distribution of these pulses are random, but their amplitude is controlled by the flow conditions. Beside of mechanical properties, some metallurgical parameters such as work hardening rate and stacking fault energy have been introduced in the model. It can be applied to all types of cavitation and can be extended to erosion by liquid drop impacts or solid particle impact erosion.
© Société Hydrotechnique de France, 1988
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.