考慮氣態(tài)水的水溫耦合二維計算模型研究.pdf

1、哈爾濱工業(yè)大學碩士學位論文考慮氣態(tài)水的水溫耦合二維計算模型研究姓名：張海霞申請學位級別：碩士專業(yè)：道路與鐵道指導教師：王彩霞20050601哈爾濱工業(yè)大學工學碩上學位論文AbstractIntheseasonalfrostarea，therearcsomedamagessuchasfrostheave，thawingsinketccausedbythefrostingandthawingcirculationintheroadfollo

2、wingtheseasonalchangesTheroaddamagesaremainlyinducedbytheheatandmattermigrationinitthepreventionmethodstotheroaddamageshavemuchtodowiththethermalfieldandthehumidityfieldSO，itisthepredeterminativequalificationforthecorrec

3、tdesigningoftheroadpavementconfigurationsystemandthepreventingtothefrostheave，thawingsinketctogettothebottomofthethermalandthehumidityCOnditionsofitinwinterOveralongpedodoftime，manyexpertsaredivingintothisfieldtostudythe

4、mechanismoftheheatandmattermigration，butbecauseofthecomplexityofit，thereisnotatheoryCanaccurateannotatehowthemoisturemigratingintheroadyetSOitisveryimportanttopersistinstudyingitThispaperbroughtforwardatheorybasedOnthesu

5、mmariZationofthemoisturemigrationtheorieswhichinexistenceandtheanalysisoftheinfluencingfactorsaffectingOnthecourseofthemoisturemigration，andthetwodimensiontheoreticalcalculatingmodelofthecouplingactiontemperaturefieldand

6、humidityfieldofroadpavementstructuralbodyissetuponthebasisofheatconductionequationsandDarcylawandthealgorithmofsolutiontothemodelusingfinitedifferencemethodWasgivenTheprominenceofthepaperisthattakingintoaccountthewaterva

7、porinthemoisturemigrationtogetherwiththeliquidwater，andadoptingthethermodynamicparametersofthematerialswhichCallbemoreaccordingwiththefactKeywordshumidityfield；fullycoupledthermalfieldandmoisturemovementthermalfield；unsa