0445120059 0445120231 Igikoresho gisanzwe cya gari ya moshi gihuye na Cummins SAA6d107e-1 Komatsu PC200-8

Dynamic cavitation imbere mumikorere ihanitse ya mazutu - ubushakashatsi nubushakashatsi bwa CFD（igice cya 4）

Urubanza rwa 1000Bar ihwanye rwakoreshejwe hifashishijwe igipimo cyumuvuduko ukabije nkuko ubarwa kuri Moderi nini nini. Kuri cavitation, hakoreshejwe imashini ivanze. Ibi bivuze ko byombi byamazi hamwe numwuka bigenda murugendo rumwe rwinshi; nubwo bitagira aho bigarukira, ni igitekerezo cyemewe cyo gutembera gutemba. Ibyiciro bibiri bidashobora kugereranywa byerekanwe, bikaba byumvikana kumanura yumuvuduko muke ukoreshwa murwego runini rwo kwerekana.

Kwigana 1000Bar ihwanye nigitutu cyo gutera inshinge byatanze imyitwarire yinzibacyuho ihuye nibisubizo byubushakashatsi, nkuko bigaragara ku gishushanyo cya 3 hamwe n’amashusho umunani y’ubushakashatsi kuva ku gishushanyo cya 2. Umuvuduko ni 156Hz, utanga isano ryiza nagaciro ka 160Hz. Filime zombi zigeragezwa hamwe nibisubizo bya CFD byerekana ibintu bisa. Impuzandengo ya Cd uhereye kuri moderi ya LES RANS ya Hybrid ni 0,71. Ibi bitanga amasezerano meza hamwe nagaciro gapimwe kuri Moderi nini nini. Ibisubizo biratanga ikizere mubyitegererezo no kwemeza gukomeye guhuza imvururu hamwe na moderi nyinshi za CFD. Ibisobanuro birambuye byatanzwe muri [8].

Ingano-nyayo ya CFD

Moderi ya CFD yakoreshwaga kubunini nyabwo kandi itanga pulsation isa na 150 kHz. Inshuro ziteganijwe kuva kubara ni 160 kHz, ibyo bikaba byemeza uburyo. 5. Ikiganiro Uburyo bwerekanwe bwerekanwe butuma ikoreshwa rya moderi ya LES CFD mugutezimbere ibicuruzwa. Kwemeza uburyo bumwe nabwo bwerekanwe, ntibisanzwe kuri LES CFD muriki gice.