Diesel Injiza Ibitoro 0445120056 Bosch kuri moteri ya muntu

Dynamic cavitation imbere mumikorere ihanitse ya mazutu - ubushakashatsi nubushakashatsi bwa CFD（igice 1）

Ibisobanuro.

Ihuriro ryokwigana hamwe nubuhanga bwihariye bwubushakashatsi bwakoreshejwe mugushakisha imigendekere yinzibacyuho na cavitation yibikoresho bigenzura imbere mumashanyarazi akomeye ya mazutu. Imyitwarire idahwitse yafashwe ku nini nini igaragara mu mucyo, hanyuma ikoreshwa mu guteza imbere no kwemeza imiterere y’imyivumbagatanyo ya CFD hamwe na Big Eddy Simulation. Ubu buhanga bukoreshwa muri Delphi kugirango ubone ubushishozi no kunoza imikorere yatewe inshinge.

1 Intangiriro

Injeneri ya mazutu twavuga ko ari ikintu cyingenzi mu kugera ku mikorere ya moteri ya premium hamwe n’ibyuka bihumanya ikirere. Bikurikiraho rero ko inshinge za moteri ikora cyane zigomba kugenzurwa neza. Nkigisubizo, hydraulic igenzura indangagaciro na orifices bigomba kuba byarateguwe kandi bigakorwa neza, kandi gusobanukirwa imyitwarire yabo yibanze bizatanga umusanzu wingenzi mugutezimbere no gutunganya neza. Delphi ikoresha uburyo bwo kwigana hamwe nubuhanga bwihariye bwo kugerageza gukora iperereza kubiranga ibyo bikoresho.

Kimwe ninshinge zose nshyashya, Urwego rwo hejuru Diesel Injeneri iri gutezwa imbere i Delphi yibanze kubikorwa byinshi byo kwigana. By'inyungu zihariye kuriyi mpapuro, ni iperereza rya CFD kumikorere yo kugenzura hydraulic.

Flow cavitation ni ingingo imenyerewe mubikoresho byo gutera mazutu; ubunararibonye bwubushakashatsi bwerekanye ko inganda zisanzwe Reynolds-Averaged Navier-Stokes (RANS) kwerekana imiterere idashoboye gutanga ibisubizo nyabyo kumyitwarire ya cavitation. Kubwibyo, usibye imirimo ya CFD, moderi nini nini (LSM) yibice bitandukanye byimirimo yo kugenzura hydraulic yashinzwe. Gukoresha moderi iboneye yo kugenzura ububiko na orifike ku munzani wiyongereye cyane bituma habaho gusobanukirwa neza imikorere ya hydraulic [1] itagerwaho byoroshye hamwe nubundi buhanga. Imikorere ya hydraulic irigenga bihagije mumunzani yose kugirango igire akamaro nkigikoresho cyiterambere [2].