Diesel Injector Roj Injector 0445120061 Bosch rau txiv neej TGA TGS TGX 10.5L D2066
Khoom npe | 0445120061 |
Cav Qauv | Man TGA TGS TGX 10.5L D2066 |
Daim ntawv thov | Man TGA TGS TGX |
MOQ | 6 pcs / Negotiated |
Ntim | Lub thawv dawb ntim lossis cov neeg siv khoom xav tau |
Lub sijhawm ua haujlwm | 7-15 hnub ua haujlwm tom qab paub meej tias kev txiav txim |
Kev them nyiaj | T / T, PAYPAL, raws li koj nyiam |
Dynamic cavitation nyob rau hauv lub siab ua haujlwm diesel injector - kev sim thiab CFD kev tshawb nrhiav(part 2)
Hauv CFD simulation, daws teeb meem loj turbulent qauv siv Loj Eddy Simulation (LES) raws li cov qauv qhia tau hais tias cov qauv siv tau zoo dua li RANS simulations [3] [4] [5]. Qhov tsis zoo ntawm LES raws li CFD nyob rau hauv ib puag ncig kev lag luam yog qhov kev siv nyiaj txiag loj heev uas yuav tsum tau muaj, ntawm qhov kev txiav txim ntawm ntau pua lub siab cores. Yog tias tsis muaj cov peev txheej zoo li no, lub sijhawm ua haujlwm rau ib kis tuaj yeem siv sijhawm ntau lub hlis, ua rau kev tshawb nrhiav loj tsis tuaj yeem nyob rau lub sijhawm tsim nyog.
Cov kev txhim kho tseem ceeb tau ua nyob rau hauv CFD qauv uas sim ua ke cov txiaj ntsig ntawm LES thiab RANS turbulence modeling [6]. Cov qauv no feem ntau hu ua hybrid qauv thiab muab lub peev xwm ntau dua rau LES siv nyob rau hauv ib puag ncig kev lag luam.
Ib tug hybrid LES-RANS CFD qauv, siv ib tug sib tov multi-theem txoj kev rau cavitation yog tsim los simulate qhov kev ua tau zoo ntawm kev tswj orifice. Turbulence modeling siv ib tug hybrid LES-RANS txoj kev tso cai rau kev ua lag luam kev nce qib ntawm tag nrho LES, tshwj xeeb tshaj yog nyob rau hauv lub siab Reynolds tooj (Re) phab ntsa-bounded ntws geometries nyob rau hauv ib tug diesel injector.
2. Kev sim ua haujlwm
Cov qauv pob tshab tau tsim los ntawm hydraulic tswj qhov chaw los ntawm hauv lub tshuab hluav taws xob diesel, nrog rau lub siab tswj qhov siab, nruab nrab ntawm rab koob saum toj thiab tswj valve. Vim tias qhov me me ntawm cov tshuaj txhaj tshuaj tiag tiag tus qauv tau tsim ntawm 40 npaug ntawm qhov loj, raws li nws tau pom nyob rau hauv cov kev tshawb fawb yav dhau los tias qhov kev ua tau zoo ntawm qhov dej ntws yog qhov tsim nyog ntawm qhov ntsuas [1]. Qhov kev ntsuas no tau tso cai ntau dua qhov yooj yim ntawm kev pom siv lub koob yees duab nrawm, Lub Zeem Muag Tshawb Fawb Phantom V1210. Xws li lub koob yees duab uas tsim nyog teeb pom kev zoo ntes cov ntsiab lus ntawm qhov ntws tsis pom ntawm tib neeg lub qhov muag, thiab tso cai rau tus cwj pwm hydraulic tau taug qab ntawm cov txheej txheem cavitation.