Cavitation: Bubble TrackersThis text deals with the concept that cavitation is the main limitation to the performance of hydraulic components. Topics covered include the vaporization of liquids due to high velocities or pressure fluctuations, and the effects of cavitation on the performances of rotary machinery. One chapter is devoted to cavitation noise which concerns many users, including surface ships and submarines, and the author finishes with some examples of the use of cavitation and subject-specific measuring techniques. |
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Table des matières
PARAMETER σ OF CAVITATION | 12 |
TYPES OF CAVITATION | 33 |
SINGLE BUBBLE LIFE | 44 |
CAVITATION OF A HYDROFOIL | 65 |
TRAVELLING BUBBLE CAVITATION | 76 |
FIXED OR ATTACHED CAVITATION | 115 |
CAVITATION EROSION | 139 |
OTHER TYPES OF CAVITATION | 140 |
CAVITATION IN ROTARY MACHINES | 291 |
TEST FACILITIES | 311 |
INSTRUMENTATION | 335 |
APPLICATIONS OF CAVITATION | 363 |
76 | 373 |
REFERENCES | 375 |
140 | 382 |
395 | |
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Expressions et termes fréquents
acoustic analysed appearance applications attained bubble calculated carried cavitation characteristic coefficient collapse complex conducted considered corresponding critical curve defined depends described determined developed diameter effects equal equation equipment erosion example experimental experiments extrapolation fact Figure flow rate flow velocity fluid frequency function geometry given histograms hydrodynamic hydrofoil impacts important inception of cavitation increases industrial influence intensity laws layer liquid lower machines material maximum means measurement mechanism method needed NEYRTEC noise NPSH nuclei observed obtained operation parameter particular performance phenomenon possible prediction present pressure problem produced propeller proportional prototype pump reduced Reynolds number rotational scale separation shows similar similitude surface surface tension techniques temperature test section thermodynamic transfer tunnel type of cavitation valve vapour vapour pressure various venturi vortex zone