Page 60 - 2023年第54卷第3期
P. 60

[21] 于汪洋.基于自适应网格的水文水力耦合模型研究[D].北京:清华大学,2019.
                [22] 于汪洋,马建明,尹岳明,等.基于自适应网格的二维水动 力 模 型 [J].中 国 防 汛 抗 旱,2022,32(3):
                      66 - 72.
                [23] SEENATH A.Effectsofdem resolutiononmodelingcoastalfloodvulnerability[J].MarineGeodesy,2018,41
                       (6):581 - 604.
                [24] ROSSMAN L A, HUBER W C.Storm WaterManagementModelReference ManualVolume I -Hydrology
                       (Revised)[R].Cincinnati:NationalRiskManagementResearchLaboratory,OfficeofResearchandDevelopment,
                       USEnvironmentalProtectionAgency,2016.
                [25] JIANGC,ZHOUQ,YUW,etal.Adynamicbidirectionalcoupledsurfaceflowmodelforfloodinundationsimu
                       lation [J].NaturalHazardsandEarthSystem Sciences,2021,21(2):497 - 515.
                [26] 梅超,刘家宏,王浩,等.SWMM原理解析与应用展望[J].水利水电技术,2017,48(5):33 - 42.
                [27] TOROEF.Shock - CapturingMethodsforFree - SurfaceShallowFlows[M].NewYork:JohnWiley,2001.
                [28] VANLEERB.TowardstheultimateconservativedifferenceschemeV: A secondordersequeltoGodunov’s
                       method [J].JournalofComputationalPhysics,1979,32(1):101 - 136.
                [29] DELISA,NIKOLOSI.Anovelmultidimensionalsolutionreconstructionandedge - basedlimitingprocedureforun
                       structuredcell - centeredfinitevolumeswithapplicationtoshallowwaterdynamics [J].InternationalJournalforNu
                       mericalMethodsinFluids ,2013,71:584 - 633.
                [30] CEA L, BLADE E.A simpleand efficientunstructured finitevolumeschemeforsolvingtheshallow water
                       equationsinoverlandflowapplications [J].WaterResourcesResearch,2015,51(7):5464 - 5486.
                [31] 张大伟,权锦,马建明,等.基于 Godunov格式的流域地表径流二维数值模拟 [J].水利学报,2018,49
                       (7):787 - 794,802.
                [32] GOTTARDIG,VENUTELLIM.Anaccuratetimeintegrationmethodforsimplifiedoverlandflowmodels[J].Ad
                       vancesinWaterResources ,2008,31(1):173 - 180.



                                 Dynamicbidirectionalcouplingofsurfacehydrologicaland
                                  2Dhydrodynamicmodelsbasedonmulti - gridtechnique

                                   SHENYanxia,ZHOUQi,DUANYanhua,JIANGChunbo
                               (StateKeyLaboratoryofHydroscienceandEngineering,DepartmentofHydraulicEngineering,
                                             TsinghuaUniversity,Beijing 100084,China)


                  Abstract:Aimingatimprovingthecomputationalefficiencywithoutaccuracylossesforfloodsimulationinwater
                  shed ,adynamicbidirectionalcoupledsurfacehydrologicaland2D hydrodynamicmodelsbasedonmulti - grid
                  (M- DBCM)isproposedinthisstudy.The2Dnonlinearreservoirmethodisadoptedinsurfacehydrologicalmodel
                  tosimulatetherainfall - runoff ,whereasthe2Dshallowwaterequationsareadoptedin2Dhydrodynamicmodelto
                  detailthefloodprocess.Thecomputationaldomainisdividedintogridswithdifferentsizes.Thesurfacehydrologi
                  calmodelisusedtosimulatetherainfall - runoffoncoarsegrids ,whereasthedynamicbidirectionalcoupledsurface
                  hydrologicaland2Dhydrodynamicmodelsisusedtodetailthefloodprocessonfinegrids.Acouplingmovinginter
                  face(CMI)isdevelopedtocouplethesurfacehydrologicaland2Dhydrodynamicmodels.Themassandmomentum
                  conservationthroughtheCMIcanbeensuredtoimprovethesimulationaccuracy.Differenttimestepsareadopted
                  incoarseandfinegridstofurtherimprovecomputationalefficiency.Twotestcasesareemployedtodemonstratethe
                  performanceoftheproposedmodel.TheresultsshowthattheproposedM- DBCMhashighcomputationalefficiency
                  whilemaintainingsatisfactoryaccuracy.
                  Keywords:watershedfloodsimulation;multi - grid;dynamicbidirectionalcoupling;CMI;computationaleffi
                  ciency;simulationaccuracy

                                                                                    (责任编辑:韩 昆)




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