2488244 Kohu Kai Injector mo Scania DC09/DC13/DC16 Engines

Te whakangao hihiko i roto i te injector diesel tino mahi – he whakamatautau me te tirotiro CFD （waahanga 4）

Hei whakarāpopototanga: 

Ko te atahanga tere teitei o te cavitation i roto i te puha whakahaere i kitea he paheketanga waipēhi karekau i kitea i roto i nga rangahau o mua.I hangaia he kohanga koretake nui i te taha o te pakitara o te orifice, a, i te wa i tae atu ai ki te wahanga koeko, ka hoki whakangao ki te taha o te puna.I te taenga atu o te whakakii ki te tomokanga orifice, ka rere te hanganga rere, ka whakahouhia te cavitation korekore me te mahi ano.

Ko te whakatauira ohooho teitei i roto i nga whaihanga CFD i hua he tino tika ake i nga tauira paerewa ina whakaritea ki nga hua whakamatautau.

I taurite te CFD ki te putunga nui o te kohanga kore i te taha o te orifice me te huihuinga whakaki-muri.

Ko te auau o tenei whanonga i runga i nga hua CFD i whakaae ano ki tera o te whakamatautau.

I whakaatuhia e te CFD ko te tere o te rere e pupuhi ana, e hono ana ki te whanonga cavitation i whakaahuatia i runga ake nei.Ko te mea i whakaae te Cd toharite i roto i te CFD ki tera i inehia i roto i te whakamatautau i tino maia ai he tika te rere o te rerenga rerenga CFD.

Ma te whakamahi i nga LSM i taea ai te whanaketanga o nga tauira LES CFD i roto i te waa-waahi ka taea te whakahaere.He nui te wa i penapena ai ki te whakawhanake i nga tauira mo nga waahanga tino rahi.

I roto i te take o te injector tūturu, he tiketike rawa te auau o te cavitation pulsing ki te awe i te mahi engine.Ma te mohio ki nga ahuatanga e whakaratohia ana e tenei mahi ka taea te karo i nga paanga kino ki nga taumata hoahoa a meake nei.

Tohutoro
[1]C.Soteriou, M. Smith me R. Andrews, "Cavitation hydraulic flip and atomization in direct injection diesel sprays," i IMechE C465/051/93, 1993.
[2]C.Soteriou, M. Smith me R. Andrews, "Diesel werohanga - taiaho pepa marama whakamarama o te whanaketanga o te cavitation i roto i orifices," i roto i te IMechE C529/018/98, 1998.
[3]B.Befrui, P. Spiekermann, MA Shost me M.-C.Lai, "Nga Akoranga VoF-LES mo te GDi Multi-Hole Nozzle Plume Primary Breakup and Comparison with Atahanga Raraunga," i roto i te Huihuinga ILASS Europe mo te Whakawhanaketanga Wai me nga punaha Rehu, Chania, Kariki, 2013.
[4]RE Bensow, "Ko te whaihanga o te kohanga koretake i runga i te pepa Delft Twist11 ma te whakamahi i te RANS, DES me LES," i roto i te Huihuinga Tuarua o te Ao mo Marine Propulsors, Hamburg, Tiamana, 2011.
[5]C.Egerer, S. Hickel, S. Schmidt me N. Adams, "Atataritanga o te rere cavitating porearea i roto i te hongere moroiti," i te Huihuinga SHF mo nga Miihini Hydraulic me te Cavitation / Air i roto i nga Paipa Wai, Grenoble, France, 2013.
[6]ML Shur, PR Spalart, MK Strelets me AK Travin, "He huarahi RANS-LES ranu me te whakaroa-DES me nga kaha LES kua whakatauirahia ki te pakitara," i roto i te International Journal of Heat and Fluid Flow, 2008.
[7] C. Arcoumanis, JM Nouri me RJ Andrews, "Te tono mo te Whakaorite Taurangi Refractive ki te Rere A-roto Diesel Nozzle," i te 6th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 1992. [8] D. Bush, CCESoteriou , M. Winterbourn me C Daveau, "Te tirotiro i nga waahanga whakahaere waipēhi i roto i nga injectors mahi teitei" i roto i nga punaha hinu mo nga miihini IC, IMechE 2015.