粘性泥石流運(yùn)動(dòng)機(jī)理及數(shù)值模擬研究.pdf

1、蘭州理工大學(xué)碩士學(xué)位論文粘性泥石流運(yùn)動(dòng)機(jī)理及數(shù)值模擬研究姓名：龔成勇申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：水利水電工程指導(dǎo)教師：李仁年20090427碩士學(xué)位論文AbstractThemovementofdebrisflowisacomplexandunsteadymultiphaseflow，studyingitsmovementmechanismisOIICoftheimportantcontentsofdebrisflow，andbelongs

2、totheforefrontandinterdisciplinarytheoreticalfoundationondebrisflow11塢studyinvolvesfluidmechanics，soil，geologydisasterscience，hydrology，computationalmechanics，andSOonwhichisainterdisciplinaryandmultidisciplinaryscienceTh

3、estudyofmovementmechanismimprovesthedcbrisflowdisasterpreventionandcontrolling，canprovideatheoreticalsupportandguidance1nhenumericalanalysisofviscousdcbrisflowintegratesdebrisflow。computerscience，mathematicalphysicscalcu

4、lations，softwareandotherscientificdisciplines，becominganewcrosscompoundformation，whichisclassifiedinanewfieldofthestudyofcomputerscienceonthemudrockflow，Thevalueissignificancenotonlyinresearchbutalsopracticalapplicationo

5、ftheoryinordertoanalyzeitsmovementcharacteristics，whichrevealsthemechanismofviscousdebrisflowsummarizingsomepreviousresearchresultsofdebTisflow，andbasedOnthephenomenonoflaboratorytestandtheresults，thispaperdiscussestheoc

6、currence，startup，abrasion，theaccumulationofviscousdebrisflowandotherrelatedmechanism；andthusUSeStheresultsoftheanalysistoestablishthebasiccharacteristicsframeworkmodelTobetterexplaintherelationshipofeachphaseinviscousdeb

7、risflow，thepaperutilizessomebasistheoryofthehydraulicfluiddynamics，inthecertainassumptions，derivesagroupcontrolequationsofthemovementofviscousdebrisflow，atthesametimesimplifiesitandformsafiniteelementmethoddiscreteequati

8、onsandwholefmitcelementequation；Similarly，consideringinteractioIlsbetweentheviscousslurryandthevalleybanksestablishescontrolequationsoftheviscousdebrisflowandthevalleybetweenthebanksandadiscretecoupledequationsformat；atl

9、astthepaperdependsoncomputersimulationanalysisofviscousdebrisflowtoanalyzeitscharacteristicsfromtheviewofvisualizationoftheviscousdebrisflowmovementFinally，thepapercombinesthesimulationresultsandexperimentalphenomenatosu

10、mmarizeviscousdebrisflowCharacterizationanditsmovementmechanismThemainresultsachievedinthepaperareasfollow：1)putforwardthatdebrisflowcharacteristicsbelongstothemacro—characterizationoftheitsmovementmechanism，SOthestudych

11、aracteristicsofdebrisflowshouldrevealthemechanismofdebrisflowmovementOnthisbasis，thepaperconstructsthebasiccharacteristicsframeworkmodelbyanalyzingthesummarythecharacteristicsofviscousdebrisflowmovement；∞onbasisoftheoryo

12、fthehydraulicfluiddynamics，derivesagroupofcontrolequationsofthemovementofviscousdebrisflow，andsimplifiesitandformsafmitcelementmethoddiscreteequationsandthewholefmiteelementequation；Similarly，consideringinteractionsbetwe