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THRESHOLD CAVITATION [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1979-10-03

English

Subject field(s)
  • Acoustics (Physics)
  • Engineering
DEF

intensity of an acoustic field at which acoustically-induced cavitation just begins to occur. Indications of this are: increased acoustic losses, increased non-linear distortion and the appearance of cavitation noise.

CONT

Above the cavitation threshold the nuclei become unstable and collapse suddenly, radialing shock waves which appear as wide-band noise.

French

Domaine(s)
  • Acoustique (Physique)
  • Ingénierie
CONT

seuil de la cavitation NPSH [net positive suction head]. [...] Dans l'écoulement des liquides, il existe [...] un seuil au-delà duquel la cavitation ne peut se produire et que nous pouvons traduire par la relation [où] la pression minimale en un point particulier de l'écoulement [est supérieure à la pression de vapeur saturante]

Spanish

Save record 1

Record 2 1979-10-02

English

Subject field(s)
  • Acoustics (Physics)
  • Engineering
DEF

noise produced by violent radial motion of cavitation nuclei under the influence of an alternating pressure field. Above the cavitation threshold the nuclei become unstable and collapse suddenly, radialing shock waves which appear as wide-band noise.

OBS

cavitation threshold : intensity of an acoustic field at which acoustically-induced cavitation just begins to occur.

OBS

cavitation nuclei: microscopic cavities which normally exist in any sample of water; often associated with suspended solid particles although they may exist alone.

French

Domaine(s)
  • Acoustique (Physique)
  • Ingénierie
OBS

cavitation: Formation de cavités, remplies de vapeur ou de gaz, au sein d'un liquide en mouvement (...)

Spanish

Save record 2

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