0445120059 0445120231 Rerewhara Whakanui Injector Hototahi mo Cummins SAA6d107e-1 Komatsu PC200-8

Kohanga hihiko i roto i te injector diesel tino mahi – he rangahau whakamatautau me te CFD（wahanga 4)

Ko te 1000Bar rite te take i whakatairite ma te whakamahi i te hekenga pehanga tauine rite ki te tatau mo te Tauira Tauine Nui. Mo te cavitation, i whakamahia he tauira ranunga. Ka whakaaro tenei ka haere te wai me te kohu i roto i te rere o te wahanga maha; ahakoa ehara i te mea he herenga, he whakaaro tika mo nga rerenga cavitating. Ka whakatauirahia nga waahanga e rua e kore e taea te kopiri, he mea tika ki te iti o te pehanga whakaheke i whakamahia i roto i te whakatauira nui.

Ko te whaihanga o te 1000Bar rite te pehanga werohanga i puta he whanonga mohoao e rite ana ki nga hua whakamatautau, pera i te Whakaaturanga 3 me nga whakaahua whakamatautau e waru mai i te Whakaahua 2. Ko te auau ko te 156Hz, he pai te hononga ki te uara whakamatautau o 160Hz. Ko nga kiriata o te rerenga whakamatautau me nga hua CFD e whakaatu ana i te tino rite. Ko te uara toharite o te Cd mai i te tauira ranu LES RANS he 0.71. He pai rawa atu te whakaaetanga me te uara i whanganga ki te Tauira Tauine Nui. Ko enei hua ka whakawhirinaki ki te whakatauira me te whakamana kaha mo te whakakotahitanga o nga tauira ngangau me nga tauira CFD maha. Ko nga korero katoa kei te [8].

Whakatauira CFD tino-rahi

I whakahaerehia te tauira CFD mo te keehi tino rahi me te whakaputa i te pupuhi rite tata ki te 150 kHz. Ko te auau e tumanakohia ana mai i nga tatauranga tauine he 160 kHz, e whakau ana i te tikanga. 5. Matapakinga Kua whakaatuhia he tikanga pono e taea ai te whakamahi i te whakatauira LES CFD hei whakapai ake i nga hua. Kua whakaatuhia ano etahi whakamanatanga o te tikanga, ehara i te mea noa mo LES CFD i tenei mara.