水锤及水锤压力波在水系中传播的分析与试验

水锤及水锤压力波在水系中传播的分析与试验Title: Analysis and Experimental Study on Water Hammer and Pressure Wave Propaga

水锤及水锤压力波在水系中传播的分析与试验 Title:AnalysisandExperimentalStudyonWaterHammerand PressureWavePropagationinWaterSystems Abstract: Waterhammerisahydraulicphenomenonthatoccursin watersystems,causedbythesuddenchangeinflowvelocity.It posesarisktotheintegrityofpipelinesandassociated equipment,leadingtodamageandpotentialsystemfailures.This paperaimstoanalyzeandstudywaterhammerandpressure wavepropagationinwatersystems,usingboththeoretical analysisandexperimentalinvestigations.Theanalysisfocuseson thecauses,characteristics,andeffectsofwaterhammer,whilethe experimentsaimtoverifyandvalidatetheoreticalfindings.The resultsobtainedfromthesestudiescontributetoabetter understandingofwaterhammerphenomenaandaidinthe developmentofeffectivemitigationstrategies. 1.Introduction: Waterhammerreferstotherapidchangeinpressurethat occurswithinawatersystemwhenthereisasuddenchangein theflowvelocityordirection.Itisatransientphenomenonthat produceshigh-pressurepeaks,followedbylow-pressuretroughs. Theoccurrenceofwaterhammercancauseseveredamageto pipelines,valves,fittings,andotherhydraulicdevices,leadingto systemfailure.Understandingthecausesandeffectsofwater hammerisessentialfordesigningandoperatingwatersystems safelyandefficiently. 2.CausesandCharacteristicsofWaterHammer: Waterhammerisprimarilycausedbysuddenvalveclosure, pumpfailure,orsuddenchangesinflowrateduetopump start-up,valveopening,orpiperupture.Itoccursduetothe inertiaoftheflowingwater,resultinginexcessivepressure fluctuationswithinthesystem.Thepressurewavegeneratedby waterhammercantravelbackandforthalongthepipelines, leadingtofurtherdamageifnotappropriatelymanaged.Thekey characteristicsofwaterhammerincludepressurerise,pressure drop,andthepropagationspeedofthepressurewave. 3.EffectsofWaterHammer: