Disele Injector Fuel Injector 0445120061 Bosch for Man TGA TGS TGX 10.5L D2066

Dynamic cavitation ka hare ho ente e phahameng ea diesel - tlhahlobo ea liteko le CFD（karolo ea 2)

Papisong ea CFD, ho rarolla meaho e meholo e moferefere e sebelisang mehlala e thehiloeng ho Large Eddy Simulation (LES) e bonts'a molemo oa nakoana oa ho etsa mohlala ho feta lipapiso tsa Rans [3] [4] [5]. Bothata bo boholo ba LES e thehiloeng CFD tikolohong ea indasteri ke sesebelisoa se seholo sa komporo se hlokahalang, sa tatellano ea li-cores tse makholo a 'maloa tse inehetseng. Ntle le sesebelisoa se joalo, nako ea nyeoe e le 'ngoe e ka nka likhoeli, e etsa hore lipatlisiso tse tebileng li se ke tsa khoneha ka nako e utloahalang.

Lintlafatso tse kholo li entsoe ka har'a mohlala oa CFD o lekang ho kopanya melemo ea bobeli ba LES le RNS turbulence modeling [6]. Mefuta ena hangata e bitsoa mefuta e nyalisitsoeng mme e fana ka monyetla o moholo oa hore LES e sebelisoe tikolohong ea indasteri.

Mofuta o nyalisitsoeng oa LES-RANS CFD, o sebelisang motsoako oa mekhahlelo e mengata bakeng sa cavitation e entsoe ho etsisa ts'ebetso ea orifice ea taolo. Mohlala oa moferefere o sebelisang mokhoa o nyalisitsoeng oa LES-RANS o lumella phaello e kholo ea khomphutha ho LES e felletseng, haholo palo e phahameng ea Reynolds (Re) e tsamaeang ka lebota la geometrie ka har'a ente ea diesel.

2. Mosebetsi oa Teko

Mefuta e hlakileng e ile ea bōptjoa ka likarolo tsa taolo ea hydraulic ho tloha ka har'a ente ea diesel, ho kenyelletsa le orifice e phahameng ea khatello, pakeng tsa nale holimo le valve ea taolo. Ka lebaka la tekanyo e nyane ea li-injection tsa 'nete mohlala o entsoe ka linako tse 40 tsa boholo ba nnete, joalo ka ha ho bonts'itsoe lithutong tse fetileng hore ts'ebetso ea phallo ea orifice e ikemetse ka mokhoa o itekanetseng [1]. Tekanyo ena e ntseng e eketseha e ile ea nolofalletsa pono e kholo haholo ka kh'amera e lebelo le holimo, Vision Research Phantom V1210. Khamera e joalo e nang le mabone a nepahetseng e nka lintlha tsa phallo e sa bonahaleng mahlong a motho, 'me e lumella boitšoaro ba hydraulic hore bo lateloe ka mokhoa oa cavitation.