甲烷微燃烧器预混燃烧过程场协同优化研究

《甲烷微燃烧器预混燃烧过程场协同优化研究》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、硕士学位论文!==!!====!=!=====!!===!=!!========!==!!!!===========!=====!!!!=!======================AbstractWiththedevelopmentofeconomy，energyshortagebecomesmoreandmoreobvious，lookingforhighefficiencycombustorhasbecomethedevelopmentdirectionofscientists，andhasmultipleadvantagesofmicroscale

2、combustionhasreceivedwideresearchers’attentionallovertheworld．MicroscalecombustioniSthefuelcombustionreactioninmicrospace．Researchonmicro．combustioninvolvesmultipledisciplinesincludingheattransfertheory，combustiontheory，andchemicalreactiondynamicsandSOon．Differentfromtheconventiona

3、lspatialscalecombustion，thecombustionstability，combustionefficiency，heatlossandcombustioncharacteristicsareverydifferent．Therefore，numericalsimulationwasusedtostudytheworkconditionandcombustionpropertiesofmethanesteptype，thefieldsynergyofmicrocombustorwasanalyzed，thecombustorchambe

4、randthestep—angleisoptimized，andthecombustionchamberandthestep-anglewasoptimizedbymultidisciplinarydesignoptimizationtheory．whichwillprovidereferencevalueforresearchofmicrocombustor．Themaininnovationandresearchworkinthepaperwereexpressedasfollows：(1)Amathematicalmodelofmethanecombu

5、stionladdertypemicrocombustorwasestablished，andthemethanecombustionofmicrocombustorindifferententrancevelocities，wallmaterialsanddifferentburnerstructureswassimulatedandanalyzed，whichresearchedthemethanecombustioncharacteristicsand1awofmicrocombustor．(2)Amicro-combustormodelofstept

6、ypewasanalyzedbymulti-fieldsynergymethod，thelawthatthermalefficiencyofmicro—combustorwasthebestwasrevealedwhenthesynergybetweenthevelocityvectorfieldandtemperaturegradientfieldwasoptimal，andtheinfluenceofdifferententrancevelocityandexcessaircoefficientonthecombustiontemperaturefiel

7、dswereobtained．(3)Themultidisciplinarydesignoptimizationmodelwasestablishedwiththeobjectivefunctionofthecombustorchamberlengthandstep-angleofmicrocombustor．Adaptivechaosoptimizationalgorithmwasusedtosolveweightsfactorofmulti—disciplinarydesignoptimization．Theresultsshowthatthecombu

8、stionperformanceofmicrocom