大空間多股送風(fēng)射流重合特性的理論與實(shí)驗(yàn)研究.pdf

1、同濟(jì)大學(xué)碩士學(xué)位論文大空間多股送風(fēng)射流重合特性的理論與實(shí)驗(yàn)研究姓名：趙菊申請學(xué)位級(jí)別：碩士專業(yè)：供熱、供燃?xì)狻⑼L(fēng)及空調(diào)工程指導(dǎo)教師：朱士蕓肖勇全2000.3.1AbstractTheoccupiedzoneairconditioning，inwhichairdistributionisprovidedbymulti—outletiets，hasbeenadoptedinmostofthelargespacesinordertomeet

2、therequirementofenergyconservationanddesignThereisoverlappingphenomenabetweenmulti—streamietswhichdiffersfromsingle—steamjetAccordingtothetypeofconstructions，outletsmaybearrangedinthefonnoflineorplaneInthispaper，theflowi

3、nglawofparallelmulti—streamjetwasthoroughlydiscussedInthispapermathematicalmodelofoverlappingcorrectioncoefficientofvelocity(temperature)K。(Kf)wasestablishedonthebasisofflowinglawofthefreesingle—steamjetTheoverlappingcoe

4、fficientofparalleljetsof2～15outletswascalculatedThechanginglawofK。(Kf)andtheinfluencefactorsonitwereobtainedthroughanalysisThestudyresultsrevealed：outletvelocitytemperaturedifference，thediameterofoutletandtherangeofjetar

5、ethemainfactorstoaffecttheoverlappingcharacteristicsofjetsHowever，whenthenumberofoutletssurpasstwelve，themaininfluencefactorsaretherangeofjetmadthedistancebetweenoutletsInthispaper，accordingtothechanginglawofK。(Kt)，class

6、ificationandcollectionofoverlappingcoefficientof2～15outletswasmadeandgivenintheformofchartanddiagramforemployingToverifythereasonabilityoftheoreticalresults，theexperimenttableofparallelmulti—outletjetswasbuilttotestifyan

7、danalyzetheoverlappingcharacteristicsofthejetsofthree，six，nine，twelve，andfifteenoutletsTheexperimentalresultsindicate：analyticalvalueiscorrectComparingwiththeavailablestudyresults，theoverlappingcharacteristicsofparallelm