Cavitation Rates in Water with Dissolved Gas and Other Impurities-中国Betway体育网页登陆

摘要 Ourobjectiveisabetterunderstandingoftheroleofphysicalpropertiesofrealfluidsinthethermodynamicsofcavitationinimpurewater.Anextensiontotheclassicalhomogenousnucleationtheorysuitableformixturesispresentedinattempttoaddressthediscrepancybetweenthetheoreticalpredictionsandpracticalobservationsofcavitationratesinwateratnormaltemperatures.Theextensiontakesintoaccoutthenon-equilibrium(dissipative)effectsinvolvedinnucleiformationthroughasubstancedependentcorrectioncoefficienttobedeterminedexperimentally.Thetheoryofthermodynamicfluctuationsisappliedtoderivetheworkofformationofabubblenucleus.Thevalueofthecorrectioncoefficientisestimatedusingpreliminaryexperimentaldatafromaconvergent-divergentnozzle.Anapplicationoftheresultstothenumericalpredictionofthecavitationzonesinaradial-flowwaterpumpisshown.

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Cavitation Rates in Water with Dissolved Gas and Other Impurities

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