High Quality Common Rail Diesel / Fuel Injector NozzleDLLA148P168

Yekumhanyisa Kuyerera Kunoteedzera muMafura Injector Nozzles (chikamu 6)

Hukuru hudiki, kumhanya kukuru uye chiyero chenguva shoma chinoita kuti zviome kwazvo kudzidza maitiro nemayedzo. Modelling cavitation inogona kubatsira mukuenzanisa kuyerera mune chaiyo saizi jekiseni nozzles uye kudzidza yemukati nozzle maitiro, ayo anokanganisa kuyerera mukati memuromo.

Kuvakwa kwechero kuenzanisa kwecavitating injector nozzles kunotanga nefungidziro dzakakosha dzekuti chii chinosanganisirwa uye chinozoregeredzwa [12]. Kusvika iye zvino, hapana kubvumirana pamusoro pekuti zvinogamuchirwa here kufunga kuti zviduku, high-speed cavitating nozzles zviri mu thermal kana inertial equilibrium. Kana munhu akafunga kuti muromo uri mukupisa kwekuenzanisa, saka hapana kunonoka kukuru mukukura kwebubble kana kudonha nekuda kwekupisa. Kutamisa kupisa kunokurumidza kukurumidza uye inertial mhedzisiro inomisa shanduko yechikamu. Kufungidzira kweinertial equilibrium kunoreva kuti zvikamu zviviri izvi zvine slip velocity isingaite.

Neimwe nzira, pane sub-grid scale level, munhu anogona zvakare kufunga nezve mukana wemabhururu madiki anesaizi inopindura kune shanduko mukumanikidza. Izvi zvakasiyana-siyana zvemafungiro zvinotungamirira kune zvakasiyana-siyana zvekuenzanisira maitiro. Masimulation ecavitating atomizer nozzles anogara achida kurerutsa fungidziro. Aya fungidziro anofanirwa kukwana kuita kuti dambudziko rigadzirike pasina kuburitsa zvikanganiso zvisingagamuchirike. Chinangwa chebasa iri kugadzira matatu-dimensional CFD solver kutevedzera kuyerera mudiki, high-speed cavitating nozzle uchishandisa homogeneous equilibrium model (HEM). HEM inoshandiswa mubasa iri inowedzera muenzaniso wakatsanangurwa naSchmidt et al. [1,2] mune multidimensional uye parallelized framework. Iyo modhi inowedzerwa kuti itevedzere iyo isiri-mutsara mhedzisiro yechikamu chakachena mukuyerera uye nzira yenhamba inosiyana nebasa raSchmidt et al.