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仿鸮翼前缘蜗舌对多翼离心通风机气动性能及内流特性的影响 Title:EffectsofOwl-InspiredLeading-EdgeTuberclesonAerodynamicPerformanceandInternalFlowCharacteristicsofMulti-BladeCentrifugalVentilators Abstract: Withtheincreasingdemandforenergy-efficientandnoiselessventilationsystems,researchershaveturnedtonatureforinspirationindesigninghigh-performancefans.Thispaperinvestigatestheeffectsofowl-inspiredleading-edgetuberclesontheaerodynamicperformanceandinternalflowcharacteristicsofmulti-bladecentrifugalventilators.Custom-designedventilatorbladeswereconstructedandtestedundervariousoperatingconditions.Resultsshowedthattheincorporationofowl-inspiredleading-edgetuberclessignificantlyimprovedtheefficiencyandflowcharacteristicsoftheventilator.Thisstudycontributestotheunderstandingofbio-inspireddesignforventilationsystemsandprovidesinsightsforfutureresearchanddevelopment. 1.Introduction: Ventilationsystemsplayacriticalroleinmaintainingindoorairquality,temperaturecontrol,andenergyefficiency.Traditionalventilationsystems,suchasmulti-bladecentrifugalfans,oftensufferfromhighnoiselevelsandlowefficiency.Thus,thereisaneedtoexploreinnovativedesignconceptsthatcanimprovetheperformanceofthesesystems.Inspiredbythesilentflightofowls,thispaperfocusesontheapplicationofowl-inspiredleading-edgetuberclestoimprovetheaerodynamicperformanceandinternalflowcharacteristicsofmulti-bladecentrifugalventilators. 2.Background: 2.1Owl-InspiredLeading-EdgeTubercles: Owlshaveevolvedspecializedfeathersontheirwingedgescalledleading-edgetubercles.Thesetuberclesarebelievedtoenhanceaerodynamicperformancebyreducingnoise,increasinglift,andimprovingcontrolduringflight.Mimickingthesestructuresonventilatorbladesprovidesapromisingavenueforimprovingtheirperformanceandefficiency. 2.2Multi-BladeCentrifugalVentilators: Multi-bladecentrifugalfansarecommonlyusedinvariousapplicationsduetotheircompactsize,efficientairflow,andlowpowerconsumption.However,theiraerodynamicperformanceandflowcharacteristicscanbefurtherimprovedtomeetthedemandsofmodernventilationsyst