منابع مشابه
Investigation of Cavitation Damage Levels on Spillways
This paper presents a classification of cavitation damage levels on spillway surface. Two important factors influencing cavitation damage have been considered in this study, flow velocity and cavitation index. Based on these factors, five different damage levels from no cavitation damage to major cavitation damage have been determined. The method was applied to data of the Shahid Abbaspour dam ...
متن کاملTowards numerical prediction of cavitation erosion.
This paper is intended to provide a potential basis for a numerical prediction of cavitation erosion damage. The proposed method can be divided into two steps. The first step consists in determining the loading conditions due to cavitation bubble collapses. It is shown that individual pits observed on highly polished metallic samples exposed to cavitation for a relatively small time can be cons...
متن کاملCavitation Damage During Flexural Creep of SiAlON–YAG Ceramics
Cavitation damage in flexure bars crept at 1170°C was studied by a density measurement technique. The cavity density within the flexure beams could be approximated by a linear function of position from the tensile surface. A threshold stress for cavitation damage is suggested from the results of this study. Below the threshold tensile stress, cavitation ceases, whereas above the threshold, cavi...
متن کاملPrevention of tissue damage by water jet during cavitation
Cavitation bubbles accompany explosive vaporization of water following pulsed energy deposition in liquid media. Bubbles collapsing at the tip of a surgical endoprobe produce a powerful and damaging water jet propagating forward in the axial direction of the probe. We studied interaction of such jet with tissue using fast flash photography and modeled the flow dynamics using a two-dimensional R...
متن کاملIntroduction 2 Cavitation 3 Physically based Creep Damage Constitutive Equations
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ژورنال
عنوان ژورنال: Wear
سال: 1979
ISSN: 0043-1648
DOI: 10.1016/0043-1648(79)90066-8