航空学报英文模板Word文档格式.doc
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aDepartmentofAerodynamics,NanjingUniversityofAeronauticsandAstronautics,Nanjing210016,China
bSchoolofElectronicandInformationEngineering,BeijingUniversityofAeronauticsandAstronautics,Beijing100191,China(投稿时请将作者姓名和单位删掉)
(注:
英文单位名称请注意写准确,具体可上本刊网站下载中心“单位英文名称”查询,如发现本刊所给英译文有误,欢迎指正)
Received5May2009;
revised11June2009;
accepted16September2009
Abstract
Thecouplednumericalsimulationofflowfield,solidtemperaturefield,speciesconcentrationfieldandgasradiationtransfer/energyfieldbasedonstatisticalnarrow-bandcorrelated-k(SNBCK)model,isemployedtoaccuratelypredictaerothermodynamiccharacteristicofaircraftexhaustsystem.AseriesofmethodstoincreasecomputationalefficiencyanddescendcomputationalresourcesmakeitpossibletofinishthecalculationinPC.Theparametersofnarrow-bandmodelareevaluatedbyHITEMPline-by-linedatabase.Threeexampleshaveprovedtheaccuracyofusingthesemethodstosolveflowheattransfercoupledproblemandradiationtransfer/energyequation,whicharethecalculationoftemperaturedistributionofwater-coolingnozzleinrocketengine,thecalculationofcarbondioxideabsorptivityat4.3micronband,andthegasradiationheattransferevaluationofthecylindricalfurnace.Finally,theinnerflapstemperaturedistributionofejectingnozzlewithfloatingouterflapsiscomputed,underhigh-altitude,high-speedandafterburningconditions.Twocompletelydifferentair-inletschemesofejectingchannelalmostachievethesameeffectincoolinginnerflaps.(英文摘要应不少于150词;
包含研究的目的、方法、结果和结论;
通常用一般现在时,除非有明显的过去时间指示词出现)
Keywords:
transonicflow;
unsteadyflow;
full-potentialequation(5-8个,建议其中1-2个选自EIcontrolledterm词表)
No.2 CAIFeietal./ChineseJournalofAeronautics24(2011)xx-xx ·
3·
1.Introduction*Correspondingauthor.Tel.:
+86-10-82317058.
E-mailaddress:
abc@
Foundationitem:
NationalNaturalScienceFoundationofChina(基金号)(注:
基金项目的正确英文名称请查询本刊下载中心“基金项目英文名称”)
1000-9361/$-seefrontmatter©
2011ElsevierLtd.Allrightsreserved.
doi:
ThecomputationmethodofunsteadytransonicflowbasedonN-Sequationsshouldbebestaccurate,buttothree-dimensionalcomplexproblems,itcanbeachievedonlyonlargecomputers,andmoreover,theresultsarenotidealsometimes[1].Aviscous/inviscidinteractionmethodisanapplicableoneandthecomputationtimecanbereducedbytwoorders.
Themethodtosolvethefull-potentialequationovertransonicunsteadyforcesonwingshasbeendeveloped[2-3],buttoassemblies,itisnotmature,andtheresearchworksarecontinuouslycarriedon[4-5].
Thekeytocomputetheunsteadyaerodynamicforcesistogeneratedynamicgridsefficiently.Inthepresentpaper,analgebraicmethodandrapiddeformingtechniqueareusedtogeneratethree-dimensionalboundary-fitteddynamicgridsforassemblies.Theconservativefull-potentialequationissolvedbyatime-accurateapproximatefactorizationalgorithmandinternalNewtoniterations.Anintegralboundarylayermethodbasedonthedissipationintegralisusedtoaccountforviscouseffects.Thecomputationalresultsaboutunsteadytransonicforcesonwings,bodiesandcontrolsurfacesareinagreementwithexperimentaldata.(前言一般不要放图、表、公式)
2.ComputationScheme
2.1.Governingequation
2.1.1Governingequation
Theunsteadyfull-potentialequationwritteninabodyfittedcoordinatesystemisgivenby
(1)
whererisdensity,U,V,andWarethecontravariantvelocitycomponentsinthex,h,andzdirections,meanstime,andJisJacobian.(正文中不要用公式编辑器插入符号,直接敲入即可)
(公式编辑器中的行距不要改动,默认值即可)
(公式中用到小括号时,不要用公式编辑器中的括号,如,直接用键盘敲入即可如)
wherefisvelocitypotential.
2.2.Generationofgrids
Thealgebraicmethodisusedtogeneratethree-dimensionalboundary-fittedgridsforawing.Theheightofthefirstgridnexttothebodyiscontrolled,andthegridsneartothebodyarenormalized.
Towing/missilecombination,theH-Hboundary-fittedgridsforasinglewingaregeneratedatfirstinordertosimulatetheaerodynamicforcesonmissilesaccurately.Thesectionatthepositionofpylonischangedintotwooverlappinglayers.Apartialdeformingtechniqueisusedintheareaofpylon/launching/missiletogetthestaticgridsforthecombination.
Whenwithfuselage,thedeformingtechniqueisusedatthesymmetricsectiontogetthestaticgridsalso.
Tosimplifytheequation,thedynamicgridswherethefarfieldisfixedandthebodyisdynamicareappliedtounsteadyflows.Asitwillconsumemuchtimetogenerategridsonceatime-step,toaerodynamicelasticitymovementofsmallamplitude,ordinarily,thegridsareobtainedbysolvingthebalanceeq