海洋生态系统中放射性核素转移的数值模拟

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,510632):,,,:;;;:X591:A:100023096(2007)1020051204(GNPS)(LNPS)GNPSLNPS,,190m3/s,,,1,,,[1]:9U9t+U9U9x+V9U9y-fV+g99x+gUU2+V2HC2f=0(1)9V9t+U9V9x+V9V9y+fU+g99y+gVU2+V2HC2f=0(2)99t+99x(HU)=99y(HV)=SW()-SW()0()(3)9(HC)9t+99x(HCU)+99y(HCV)=99xHDx9C9x+99yHDy9C9y+SvH(4),UV-hzxy;C-hz;h,();;H=h+;g;f;Cf,(chezy)(Cf=H16/n,n,n=0.05);DxDyxy;Sv[1]2,,,2.1[2],:2004209220;:2005210228:(19772),,,,,:13434251401,E2mail:[e-mail]15©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:;;,,,,,,,,,(1)1Fig.1Thecompartmentmodelfigureoftheradionuclidetransferfromtheoceantothebiologiesandsedi2mentsintheoceank0ii;ci(t)it(Bq/kg);Mi(t)i(kg);cw(t)(Bq/L);kijij(ij)2.2,,,Kij(),,(),,,,,,,,(12),,kij(),,,:k04cw+k24c2-(k42+k45+k48+p)c4=0(5)k020-1cw+k42c4+k52c5+k62c6+k72c7+k82c8-(k24+k25+k26+k27+k28+p)c2=0(6)k05cw+k25c2+k45c4-(k52+k58+p)c5=0(7)k06cw+k26c2-(k62+k68+p)c6=0(8)k07cw+k27c2-(k72+k78+p)c7=0(9)k08cw+k28c2+k48c4+k58c5+k68c6+k78c7-(k82+p)c8=0(10),p(1/a)2.3k24=k04/k02;k42=k02/k04;k25=k05/k02;k52=k02/k05;k26=k06/k02;k62=k02/k06;k27=k07/k02;k72=k02/k07;k28=k08/k02;k82=k02/k08;k48=k08/k04;k58=k08/k05;k68=k08/k06;k78=k08/k07;k45=k05/k04(11)110mAg125©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(L/kg)kij(L/kg)kij(L/kg)kij(L/kg)kij(L/kg)kij1000100010000050001000100002.4,110mAg110mAg,110mAg,4.58109Bq/a,n1.001(1/a)3,1999,(2)34,110mAg0.06Bq/kg5,1Bq/kg,1.4551Bq/kg,,,,,,,,,,2Fig.2ThelocationmapforthesamplesintheDapengaoandtheDayaBay35©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(Bq/kg)Fig.3Thesimulationresultsofthephytoplankton(Bq/kg)4Fig.4Thesimulationresultsofthephytoplankton5(Bq/kg)Fig.5Thesimulationresultsofthesediments(Bq/kg):[1],,,.H23[J].(),2001,22(5):51258.[2]Garnier2lapaceJ,VrayF,BaudinP.Adynamicmodelforradionuclidetransferfromwatertofreshwaterfish[J].Water,AirandSoilPollution,1977,98:1412166.ThenumericalsimulationforthetransferoftheradionuclidefromtheliquidreleasesofthenuclearpowerstationtotheoceansystemsintheecosystemsSUKe(JinanUniversity,Guangzhou510632,China)Received:Sep.,20,2004Keywords:Compartmentmodel;radionuclide;ecosystems;transferAbstract:UsingAlternatingDirectionImplicit(ADI)method,thenumericalsimulationofthecontamina2tiondiffusioninthetideiscarriedout,andthedistributionofconcentrationfieldofthewesternDayaBayhasbeenachieved.Thenadynamicradionuclidetransfermodelofecosystemsisconstructedonthetheoreticalbasisofcompartmentmodelanalysis.Thenumericalsimulationresultshowstheruleoftheaffectionoftheradionu2clidefromthenuclearpowerstationtotheoceanecosystems.Sowecanusethecompartmentmodeloftheeco2systemstopredicttheaffections.(:)45