Common Rail Nozzle DLLA149P2166 Ya Dizilo Fuel Injector 0445120215 0 445 120 215 ya Bosch Nozzles

Kuyerekezera Kuthamanga Kwambiri mu Miphuno Yoyikira Mafuta (gawo 6)

Kukula kwakung'ono, kuthamanga kwambiri komanso nthawi yochepa kumapangitsa kukhala kovuta kwambiri kuphunzira khalidwelo moyesera. Ma modeling cavitation atha kukhala othandiza pofanizira kutuluka mu milomo yeniyeni ya jekeseni komanso kuphunzira mawonekedwe amkati a nozzle, omwe amakhudza kuyenda mkati mwa nozzle.

Kupanga kayeseleledwe kalikonse ka jekeseni wa cavitating nozzles kumayamba ndi malingaliro ofunikira omwe angaphatikizidwe ndi zomwe zidzanyalanyazidwe [12]. Mpaka pano, palibe mgwirizano wokhudza ngakhale kuvomerezedwa kuti angoganiza kuti phokoso laling'ono, lothamanga kwambiri limakhala mu matenthedwe kapena osaganizira. Ngati wina akuganiza kuti mphunoyo ili mumtundu wa kutentha, ndiye kuti palibe kuchedwa kwakukulu kwa kukula kwa kuwira kapena kugwa chifukwa cha kutentha kwa kutentha. Kutentha kwa kutentha kumathamanga kwambiri ndipo zotsatira zopanda pake zimachepetsa kusintha kwa gawo. Lingaliro la inertial equilibrium limatanthauza kuti magawo awiriwa ali ndi liwiro losasunthika.

Kapenanso, pa sub-grid scale level, munthu angaganizirenso kuthekera kwa thovu laling'ono lomwe kukula kwake kumayankha kusintha kwa kuthamanga. Kusiyanasiyana kwa malingaliro kumabweretsa njira zosiyanasiyana zowonetsera. Mafanizidwe a cavitating atomizer nozzles nthawi zonse amafuna kufewetsa malingaliro. Malingaliro awa ayenera kukhala okwanira kuti athetse vutolo popanda kubweretsa zolakwika zosavomerezeka. Cholinga cha ntchitoyi ndikumanga chosungunulira chamitundu itatu cha CFD kuti chifanizire kutuluka mumphuno yaing'ono, yothamanga kwambiri pogwiritsa ntchito homogeneous equilibrium model (HEM). HEM yomwe imagwiritsidwa ntchito pantchitoyi imakulitsa chitsanzo chomwe Schmidt et al. [1,2] mu multidimensional ndi parallelized chimango. Chitsanzocho chikuwonjezeredwa kuti chifanizire zotsatira zosagwirizana ndi gawo loyera mumayendedwe ndipo njira yowerengera imasiyana ndi ntchito ya Schmidt et al.