2488244 i-Diesel Fuel Injector for Scania DC09/DC13/DC16 IiNjini

I-cavitation enamandla ngaphakathi kwesitofu sedizili esisebenza kakhulu-uvavanyo kunye nophando lweCFD (icandelo 4)

Isishwankathelo: 

I-imaging yesantya esiphezulu se-cavitation ngaphakathi kwe-orifice yokulawula ibonise i-pulsing hydraulic effect engabonakali kwizifundo zangaphambili. I-cavitation enkulu ye-void yenziwe ecaleni kodonga lwe-orifice kwaye emva kokuba icandelo le-conical lifikelelwe, ukubuyisela umva kwenzeka phezulu kwi-orifice. Xa i-backfilling ifikelela ekungeneni kwe-orifice, kwakukho utshintsho lwesakhiwo sokuhamba, i-void cavitation enkulu ihlaziywe kwaye inkqubo iphinda iphindwe.

Imodeli yesiphithiphithi esikwizinga eliphezulu kufaniso lweCFD luvelise iziphumo ezichaneke kakhulu kuneemodeli eziqhelekileyo xa kuthelekiswa neziphumo zovavanyo. 

I-CFD ifanise i-pulsing enkulu ye-void cavitation ecaleni kwe-orifice kunye nesiganeko sokuzaliswa ngasemva. 

Ukuphindaphindwa kolu kuziphatha kwiziphumo zeCFD nako kwavumelana naleyo yovavanyo. 

I-CFD ibonise ukuba izinga lokuhamba liphinde liqhube, lidibene nokuziphatha kwe-cavitation echazwe ngasentla. Inyaniso yokuba i-avareji ye-Cd kwi-CFD ivumelene naleyo ilinganisiweyo kuvavanyo inike ithemba lokuba i-CFD flow rate rate pulsation ichanekile. 

Ukusebenzisa ii-LSM kwenze ukuba kuphuhliswe imifuziselo ye-LES CFD ngexesha elilawulekayo. Oku konga ixesha elininzi ekuphuhliseni iimodeli zamacandelo obungakanani bokwenyani. 

Kwimeko ye-injector yokwenyani, i-frequency ye-pulsing cavitation yayiphezulu kakhulu ukuchaphazela ukusebenza kwe-injini. Ukwaziswa kwesiganeko esibonelelwe ngulo msebenzi kuya kwenza ukuba nayiphi na imiphumo enokubakho engalunganga ithintelwe kumanqanaba oyilo lwexesha elizayo.

Iimbekiselo
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