Zoqinisekiso a fluid-solid multiphase iitshati ulinganiso nge SPH-DEM coupled indlela kwaye umhlaba foundation scour ulinganiso kunye a imibala graining bento imodeli Ntlekele, ezifana sediment intlekele yintsholongwane nzima imvula kwaye Tsunami intlekele yintsholongwane i-earthquake, ingaba multiphase iitshati phenomena ka-fluid (amanzi) kwaye aqinileyo (emhlabeni)Kuba umonakalo prediction kwaye countermeasure, fluid-solid uhlalutyo indlela kuyimfuneko ukusukela kukho isikali kwemida. Kule nzulu, thina ukuphuhlisa multiphase simulator utilizing i-Incompressible Smoothed Bento Hydrodynamics indlela (ISPH indlela) fluid kwaye Ezizimeleyo Kwinto Indlela (DEM) aqinileyo. I-ubudlelwane phakathi ISPH indlela kwaye DEM ngu uphunyezwe yi-siqwalasela ndibano umkhosi phakathi fluid kwaye aqinileyo. Free surface judgement ufumana i-obaluleke ukuze ufumane okulungileyo fluid uhlalutyo isiphumo. ukuphucula free surface ukufunyaniswa kwi solid ithambeka. Ngendlela elula zoqinisekiso uvavanyo, dam yaphula iitshati amanzi kwaye glass beads, thina iziqinisekiso kwaye qinisekisa zethu indlela. Ngomhla wokugqibela, indlela yokwenza yi isetyenziswe ukuba scouring ngokusebenza kunye a imibala graining bento imodeli.
Kwi-Fukushima decommissioning, ukuqikelela ixesha unikezelo ka-iboron ke ngoko kwi-ipetroli amafutha zokungcola ibalulekile ngenxa yokuba ichaphazela umngcipheko re-criticality.
Njalo, eutectic tshintshela ngesandla kwinyathelo elilandelayo kwaye relocation ukuziphatha kwe iboron carbide (B C) ulawulo intonga mathiriyali kufumana remarkable ingqalelo.
Zethu nje name dynamically visualized ukuziphatha kwe - eutectic inyibilika, kodwa ke ukuhlala kuyo yoqobo nkqu emva tshintshela ngesandla kwinyathelo elilandelayo. Nangona kunjalo, ndlela kuba akukho relocation akazange zacaciswa Ekhoyo nzulu, ukuziphatha kwe - eutectic inyibilika waba analyzed yi-elula eutectic imodeli ngokusekelwe bento semi-engabuziyo (MPS) indlela.
I-wazuza iziphumo kubonisiwe ukuba akukho relocation kwi-name zibe wachaza yi-isothermal solidification ye-eutectic inyibilika ngenxa iyagcina ye-iboron. A coupled Inqanaba Imiselwe kwaye PLIC-VOF imodeli kuba ezintathu -dimensional free surface iitshati ulinganiso yi-lattice Boltzamann indlela Free surface iitshati iingxaki kwenzeka kwi-intlekele simulations ezifana tsunami yokuhamba kwemali kwi indawo engaselunxwemeni. Kule imeko, non-hydrostatic free surface imodeli ezifunekayo ukwenza tsunami inundation ulinganiso. Kubalulekile, nangona kunjalo, kunzima ukuzithwala ngaphandle ezintathu -dimensional enkulu abakhasayo tsunami simulations ngenxa computing ka-uxinzelelo Poisson inxaki kwi-incompressible flows.
Kwi ngoku nzulu, thina bakhulisa a ngokupheleleyo explicit ezintathu -dimensional free surface imodeli yi-lattice Boltzmann indlela kunye Umondename Linear Ujongano Reconstruction indlela.
Ukongeza, siza kuba esetyenziswa pseudo Inqanaba Misela umsebenzi generated yi-ujongano amaqhekeza ukugqiba ujongano eqhelekileyo osekwe ngokuchanekileyo ngokusekelwe Elula - Coupled Inqanaba Imiselwe kwaye Umqulu Fluid indlela. Ngapha ezimiseleyo dam-france ingxaki, thina demonstrated ukuba zethu imodeli ubani convergence ka-imodeli uqukuqelo ngokunxulumene isithuba grid ubungakanani. Ngaphandle, bethu imodeli unako ukubala ujongano iimilo seamlessly kwaye settle i-artificial oscillations. Oku iphepha lunika a coupling indlela FEM kuba free surface iitshati kwaye bokusebenza. Le ndlela ezifunekayo kuphuhliso lomgaqo-numerical uhlalutyo inkqubo kwi-ukuhlolwa structural umonakalo yintsholongwane zokungcola collision.
Zokungcola ngu njengokuba ingaphakathi elula-emilisiweyo rigid umzimba, kwaye yobalo inkqubo ubudlelwane phakathi fluid FEM kwaye rigid umzimba kuchaziwe kule iphepha.
Ngaphaya koko, numerical ingaba iziphumo validated yi-kuthelekiswa ne-i-ukuva isiphumo. Kwi-big iinyikima, tumbled ifenitshala ezifana bookshelves kwaye desks kwi-amagumbi babe ngoonyana eyingozi obstacles ukuba obstruct abantu ukusuka evacuating. Kutshanje, bangcangcazele-ubungqina ifenitshala esiba ethandwa kakhulu ukuthintela iingozi ezingama kwi-iinyikima. Kubalulekile ukuqonda overturning behaviors ifenitshala kunye kwaye ngaphandle bangcangcazele-ubungqina countermeasures phantsi seismic excitations, ngokunjalo njengoko behaviors kwaye umonakalo othe ka-isakhiwo ngokwayo.
Kule iphepha, sindululo behaviors ifenitshala baba analyzed usebenzisa Adaptively Shifted Uhlalutyo (ASI) -Gauss ikhowudi utilizing frictional uqhagamshelane algorithm ngokusekelwe sophisticated esangezelelweyo indlela.
I-numerical iziphumo baba validated yi-kuthelekiswa ne-ukuva iziphumo. I-numerical ikhowudi waye kanjalo isetyenziswe ukuba isindululo uhlalutyo a ifenitshala wabeka ngexesha ngalinye floor i-RC yokwakha. Oku iphepha iphakamisa a indlela kuba simulating D fracture ukuziphatha kwe reinforced ithe ngqo usebenzisa esinesiphelo-strain imathiriyali models kwaye ibonisa ukuba semthethweni le indlela. I-esinesiphelo-strain formulation ingaba isicelo eso ukuze geometrical nonlinearity ingaba iqwalaselwe kwi-fracture ulinganiso. I-fracture ukuziphatha kwe ithe ngqo ngu modeled nge esinesiphelo-strain umonakalo imodeli nto ngokusekelwe kancinane von-Mises umbutho kwaye fracture mechanics kuba ithe ngqo. I-esinesiphelo-strain von-Mises plasticity ngu isetyenziswe kwi-plastic ukuziphatha kwe reinforcing iinkwenkwezi. Siya kuqala bonisa formulation ka-esinesiphelo-strain umonakalo imodeli kuba ithe ngqo kwaye esinesiphelo-strain plasticity imodeli kuba steel.
A numerical umzekelo RC beam kunye ezahluka-cheba reinforcements linikwa ukuze kubonakale ukuba semthethweni yomthetho ocetywayo indlela.
I-uthelekiso phakathi numerical kwaye ukuva iziphumo kunikela exabisekileyo elithetha kwi applicability yomthetho ocetywayo indlela ukuba D fracture ulinganiso reinforced ithe ngqo kwi-kwesigqibo ka-geometrical nonlinearity. A kwalomgaqo-siseko phando lwenziwa kwi indlela numerical uthathelo ka-effective viscosity ka-Solid-Okungamanzi mixture, apho gravimetric uhlobo capillary viscometer ngu uqeshiwe kuba uthathelo-nkqubo. I-Hagen-Poiseuille inxaki ngu isetyenziswe ukuhlola ngobuchule viscosity kunye data wazuza ukusuka uthotho numerical uvavanyo kwi ulawulo volume kwaye Isithuba-Ixesha averaging nkqubo. I-kwenkqubo sediments kwi-ulawulo volume ngu represented njengoko ngqukuva rigid imizimba kwaye analysed kunye Ecacileyo Kwinto Indlela (DEM), ubudlelwane phakathi okungamanzi kwaye sediments sibonwa ngoncedo Esinesiphelo Ichaphazela Indlela (FCM). Eziliqela numerical imizekelo imelwe ukuba luhlole i-viscosity dependence kumthamo iqhekeza kwaye bento izindululo zokuphela. Oku iphepha lunika a esinesiphelo kwinto uhlalutyo indlela kuba umonakalo estimation ka-Tsunami evacuation yokwakha. Ukuqikelela i-iliza umkhosi isetyenziswe kwi-building kwi-iliza propagation iingxaki, thina bakhulisa a ezintathu -dimensional free surface iitshati uhlalutyo ikhowudi ngokusekelwe umqulu fluid (VOF) indlela. A numerical ikhowudi ngokusekelwe ASI-Gauss technique ingaba isicelo eso ukuhlola ukuziphatha kwe inesakhelo zesixeko. Njengoko numerical imizekelo, estimation ka-Tsunami iliza umkhosi kwi evacuation izakhiwo imelwe ukuba sibonise ukuba semthethweni le indlela.
I-isetyenziswe iliza umkhosi kwaye umonakalo othe ka-ubume ezizuzwa langoku indlela ingaba kuthelekiswa phakathi eziliqela inflow iimeko kwaye stencils.
Sino aimed ukuba bakhulise indlela yokuthintela intshabalalo zomhlaba structures yi-imigca ethe fault. Kule nzulu, thina bamthwala ngaphandle uphuhliso centrifugal ukuva apparatus kwaye imigca ethe fault simulator ngokusebenzisa Granular Kwinto Indlela ukuba aphande kwalomgaqo-siseko ulwazi malunga deformation ukuziphatha kwe granular media phezu imigca ethe fault.
I-centrifugal imodeli uvavanyo granular kwinto simulations baba lwenziwa.
Yi-centrifugal imodeli uvavanyo, thina yabonisa ezithile ezibalulekileyo ulwazi, ezifana ukuba progressive kolawulo omtsha lamasoldati, kuxhomekeke confining koxinzelelo. Ngaphezu koko, thina yabonisa ukuba kwaphuhliswa imigca ethe fault simulator unako ukwenza kwakhona i - iziphumo centrifugal imodeli uvavanyo. Kwaye thina lwabonisa ukuba kuya kuba nako ukulawula artificially i-progressive kolawulo omtsha lamasoldati, kwaye ngaphezulu ukushenxiswa kwendawo yi-imigca ethe fault ulinganiso ukusuka GEM.
Fluid-rigid umzimba ndibano ulinganiso ngokusekelwe a stabilized ISPH indlela idityaniswe kunye impulse esekelwe rigid umzimba dynamics Kwi-fluid-rigid umzimba ndibano ulinganiso ngokusekelwe bento indlela, incompressible Smoothed Bento Hydrodynamic (ISPH) indlela isetyenziselwa ukusombulula ingxaki ka-fluid peyinta ngomlinganiselo' sindululo kwaye ifuthe ukufaka kwi-isakhiwo kwi-ngexa DEM ngokusekelwe esangezelelweyo indlela yokwenza yi commonly isetyenziswe ukumelana naye ingxaki ka-rigid imizimba.
Nangona kunjalo, uqukuqelo ka-esangezelelweyo indlela relies kwi i-small ixesha elijikelezayo. Kule iphepha, impulse esekelwe rigid umzimba dynamics ingaba isicelo eso ukwaba kunye collision uqhagamshelane ingxaki endaweni conventional esangezelelweyo indlela ye robust kwaye ngokukhawuleza computation.
