2488244 Injiza ya Diesel ya moteri ya Scania DC09 / DC13 / DC16

Dynamic cavitation imbere murwego rwohejuru rwa dizel - iperereza ryikigereranyo na CFD （igice cya 4）

Muri make: 

Kwihuta kwishusho ya cavitation murwego rwo kugenzura byagaragaje ingaruka ya hydraulic itagaragara mubushakashatsi bwabanje. Cavitation nini yubusa yaremewe kurukuta rwa orifice kandi igice cya conic kimaze kugerwaho, gusubira inyuma byabaye hejuru yimbere ya orifice. Iyo gusubira inyuma bigeze ku bwinjiriro bwa orifice, habaye inzibacyuho yimiterere, cavitation nini yubusa yaravuguruwe kandi inzira irasubirwamo

Kwerekana imidugararo igezweho mubyitegererezo bya CFD byatanze ibisubizo byukuri neza kuruta ibyitegererezo bisanzwe ugereranije nibisubizo byubushakashatsi. 

CFD yahujije impanuka nini ya cavitation ikurikira kuri orifice hamwe ninyuma-yuzuye ibyabaye. 

Inshuro yiyi myitwarire kubisubizo bya CFD nayo yemeye nubushakashatsi. 

CFD yerekanye ko umuvuduko w'amazi nawo wagendaga uhindagurika, bifitanye isano n'imyitwarire ya cavitation yasobanuwe haruguru. Kuba impuzandengo ya Cd muri CFD yemeye nicyo cyapimwe mubushakashatsi byatanze icyizere ko umuvuduko wa CFD utemba neza. 

Gukoresha LSMs byashoboje iterambere rya moderi ya LES CFD mugihe gishobora gucungwa. Ibi byazigamye umwanya munini mugutezimbere icyitegererezo cyibintu bifatika. 

Kubireba inshinge nyazo, inshuro ya pulsing cavitation yari hejuru cyane kuburyo itagira ingaruka kumikorere ya moteri. Kumenyekanisha ibintu bitangwa niki gikorwa bizafasha ingaruka mbi zose zishobora kwirindwa murwego rwo gushushanya.

Reba
[1] C. Soteriou, M. Smith na R. Andrews, "Cavitation hydraulic flip na atomisation mu gutera mazutu ya mazutu," muri IMechE C465 / 051/93, 1993.
[2] C. Soteriou, M. Smith na R. Andrews, "Gutera Diesel - urupapuro rwerekana urumuri rwa laser rumurika rwiterambere rya cavitation muri orifices," muri IMechE C529 / 018/98, 1998.
[3] B. Befrui, P. Spiekermann, MA Shost na M.-C. Lai, "VoF-LES Ubushakashatsi bwa GDi Multi-Hole Nozzle Plume Itandukanyirizo Ryambere no Kugereranya na Amashusho Yerekana," mu nama ya ILASS i Burayi ku bijyanye na Atomisiyumu y’amazi na Spray, Chania, Ubugereki, 2013.
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[5] C. Egerer, S. Hickel, S. Schmidt na N. Adams, "Isesengura ry’imivurungano y’imivurungano mu muyoboro muto," mu nama ya SHF ku mashini ya Hydraulic na Cavitation / Umuyaga mu miyoboro y’amazi, Grenoble, Ubufaransa, 2013.
[6] ML Shur, PR Spalart, MK Strelets na AK Travin, "Uburyo bwa RANS-LES buvanze n'ubukererwe-DES hamwe n'ubushobozi bwa LES," mu kinyamakuru mpuzamahanga cy’ubushyuhe na Fluid Flow, 2008.
C. 7 , M. Winterbourn na C Daveau, "Gukora iperereza ku bikoresho bigenzura hydraulic mu gutera inshinge nyinshi" muri sisitemu ya lisansi ya moteri ya IC, IMechE 2015.