High Quality Common Rail Dizilo / Fuel Injector NozzleDLLA148P168

Kuyerekezera Kuthamanga Kwambiri mu Ma Nozzles Ojambulira 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 gawo laling'ono la gridi, munthu angaganizirenso kuthekera kwa thovu laling'ono lomwekukula kuyankha kusintha kwa kukakamizidwa. 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 chofotokozedwa ndi Schmidt et al. [1,2] mu multidimensional ndi parallelized chimango. Chitsanzocho chikuwonjezeredwa kuti chifanizire zotsatira zosawerengeka za gawo loyera mumayendedwe ndipo njira yowerengera imasiyana ndi ntchito ya Schmidt et al.