懸沙垂向擴(kuò)散系數(shù)的實(shí)驗(yàn)研究

1、華東師范大學(xué)碩士學(xué)位論文懸沙垂向擴(kuò)散系數(shù)的實(shí)驗(yàn)研究姓名：朱傳芳申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：自然地理學(xué)指導(dǎo)教師：丁平興20070501華東師范大學(xué)碩士學(xué)位論文朱傳芳懸沙垂向擴(kuò)散系數(shù)的實(shí)驗(yàn)研究Studiesofverficalsedimentmixingcoe伍eientfvSMC)relationwellwithfillupandresuspensionofsediment，flocculationofsedimentmovementofse

2、dimentinthebottomboundaryisanimportantanddimcultaspectfortheresearchonestuarineandcoastalsedimenttransportwhichisalsotheveryzoneofgreatimportanttobiologychemistrygeologyandphysicsintheoceans，seas，lakeseverriversTheyinter

3、esttheoceanographerportengineers，environmentalhydrodynamicsandbiogeochemistryresearchersVerticaldistributionofVSMCisthemostimportantone，whichdeterminedtheverticaldistributionofsuspendedsedimemconcentration(ssc)。forresear

4、chaimtobo血distributionandtransportofsedimentExperirnentsOllsedimenttransportbytwodimensionaluniformcurrentsandwaveswerecarriedoutusingofwaveflowsedimentflumeFromexperimentalresults。theseconclusionisfound：1mverticaldistri

5、butionofSSCintwodimensionaluniformcurrentsagreeswellwithRouse’Sequation；2Theverticalsedimentmixingcoefficient占yisproportiontoverticalfluidmixingcoefficient8m：8v=oc8m，itisascertainedthat口=084礦056“2inourexperiments3Thevert

6、icaldistributionof0Canbcdescribedbyparabola占=氣n∞【_—4占；l』毒一0驢，inwhich占m讎canbecomputedby廳s缸=c!；蘭D，itisascertainedthatc=31，D=2，inour以experiments4TheverticaldistributionofSSCunderwavestendtologarithmbedeseribed蚵瓦SALn考The刪cal