Gaskiya Sabon Injector Na Rail gama gari L246pbc don Mai Injector

Bincike akan TasirinBututun allura Motsin Injector Dizal akan Halayen allurar kowane rami (Kashi na 2)

Babban abin da ke cikin binciken takardar shine kamar haka:

(1) Dangane da ka'idar kiyaye lokaci da ka'idar Bernoulli, an tsara tsarin gwaji don halayen allurar mai na wucin gadi na kowane rami dangane da ka'idar gwajin saurin kwararar feshi. Tsarin gwaji na iya tattara adadin allurar man mai nan take na kowane rami na injector mai ramuka da yawa a lokaci guda, kuma ya gane zagayowar tarin tsawon lokacin allurar mai. Ana nazarin daidaito da amincin tsarin gwajin.

(2) Bisa buɗaɗɗen tushen ɗakin karatu na aji C++ OpenFOAM? dandali, bisa tushen rhoCentralFoam solver don matsawa magudanar ruwa, lambar don warware matsa lamba mai ruwa-ruwa mai gudana mai hawa biyu a cikin bututun ƙarfe an haɓaka kuma an dasa shi. Mai warwarewa yana amfani da ƙirar kwarara mai kama da juna don magance kwararar man fetur da yawa a cikin bututun ƙarfe kuma yana warware canjin lokaci na lokaci biyu ta hanyar ma'aunin matsi mai kyau na jiha. Tun da daidaitattun RNGk-ε Tsarin rikice-rikice ba daidai ba ne don magance matsalolin matsawa, musamman ma abin da ya faru na cavitation a cikin ƙananan matsa lamba, ana sake sake fasalin tsarin tsarin ta hanyar gabatar da aiki mai yawa da ke da alaka da yanayin cavitation maimakon maɗaukaki na yau da kullum. Bugu da kari, yayin da ake warware ma'aunin Euler na matsewar ruwa, yawanci ana samun hanyoyin da za a daina dakatar da su, wato matsalar Riemann, saboda tsananin halayen lissafi na hyperbolic na ma'auni.

A cikin wannan takarda, ana amfani da kusan Riemann solver don aiwatar da jujjuyawar lambobi na raga don ɗaukar maganin da ba a daina ba, wato, yanayin girgizar ruwan matsewa. Ana amfani da samfurin don nazarin tasirin tasirinBututun allura motsi a kan rami mai gudana a cikin bututun ƙarfe na injector mai ramuka biyu, kuma an tabbatar da ƙirar CFD da aka kafa ta amfani da ƙa'idodin allurar mai na kowane rami. Sakamakon kwaikwaiyo ya nuna cewa samfurin zai iya kama cavitation da turbulence quasi-sequential tsarin da ke tasowa lokaci-lokaci a cikin bututun ƙarfe, kuma ci gaban cavitation na babban bututun ƙarfe ya fi na ƙananan bututun ƙarfe.