Alloy steel qauv

Slurry twj tso kua mis inviscid flow tov

Slurry inviscid flow technology muaj xws li cov hauv qab no: (a) ob-dimensional cascade flow theory;(2) ob-dimensional thiab peb-dimensional muaj peev xwm txaus daws;(3) ob-dimensional quasi-peb-dimensional, kwj muaj nuj nqi sib npaug;(4) ob seem thiab peb-dimensional Euler sib npaug;(5) Secondary flow theory.
Slurry-dimensional cascade txoj kev xav yog ib txoj hauv kev yooj yim, uas muaj txiaj ntsig zoo tshaj plaws hauv kev kub siab thiab kev kwv yees nyiaj txiag.Txuas ntxiv kwv yees qhov chaw ntws me ntsis.Yog li ntawd, txij li thaum Xib Fwb Wu Zhonghua tau thov kom muab ob lub ntsej muag sib txawv ntawm txoj kev xav dav dav ntawm kev ntws, qhov kev suav ntawm quasi-peb-dimensional flow calculations ua ntau qhov muag pom.Tam sim no, kev lag luam sector tau siv dav.Katsanits thiab Meokally, Krimmerman thiab Adler tau tsim cov thev naus laus zis no.Hauv tsev Xin Xiao Kang Jiang Jinliang ua txhua yam Dingzhun orthogonal nto txoj kev, Wu Yulin, thiab lwm yam. siv txoj kev no los xam cov mix slurry twj hydraulic machinery.
Nyob rau xyoo 1980s, cov khoom siv hluav taws xob tsis nplaum tau tig Euler equations, uas yog vim peb-dimensional muaj peev xwm ntws thiab lwm txoj hauv kev tsis tuaj yeem xav txog qhov cuam tshuam uas tuaj yeem muab rau tag nrho cov viscous poob raug kev puas tsuaj qhov txiaj ntsig.

Nyob rau hauv xyoo tas los no, peb-dimensional tsis nplaum gravelslurry twj tso kua misKev suav kev loj hlob, ntau thiab ntau tus neeg tab tom tig mus ua haujlwm feem ntau suav nrog ciam teb txheej viscous flow calculation method, Navier-Stokes equations sectional chemical method thiab Navier-Stokes equations.

Cov kev siv feem ntau ntawm kev daws qhov ciam teb yog ib txoj hauv kev thiab cov ntsiab lus sib txawv finite.Txij li thaum txoj kev loj hlob ntawm computer technology, tom qab ntawd maj mam hloov cov qub.Arakawa thiab axial twj tso kua mis nrog ib qho kev daws teeb meem ntawm peb-dimensional turbulent ciam txheej txheej ntawm cov hniav;Lakshminarayana kev koom ua ke xws li kev siv lub tshuab turbine thiab impeller opium dimensional edge class mobility, coefficient ntawm kev sib txhuam ntawm qhov chaw los ntawm kev qhia txog cov kev hloov kho yuav siv sij hawm mus rau hauv tus account rau hauv kev sib hloov, curvature thiab siab gradient nyhuv tseem.Vasta xa tawm ntawm cov kev sib hloov uas tsis yog orthogonal sib koom ua ke ntawm ciam teb txheej sib npaug thiab txoj kev daws teeb meem;Anderson tau ua qee qhov kev txhim kho, siv qhov ntsuas siab thiab qhov chaw ntawm Euler sib npaug,Cov kauj ruam ua haujlwm ntawm slurry twj tso kua miskos cov ciam teb sab nrauv ciam teb tej yam kev mob, thiab ces xam cov kev sib hloov cascade qhov khiav ntawm lub siab nto.Qhov tshwm sim ntawm txoj kev sib txawv kawg yog ua ke nrog kev sim, Wu Yulin, suav cov tshuab txuag dej ntawm kev tsim tawm, kwv yees qhov kev sib cais hauv zos ntawm lub impeller ua thiab trailing ntug.

Gravel twj tso kua mis-kua sib tov ntws mus rau hauv lub raj luv luv los ntawm qhov nqus impeller, cov khoom siv rau hauv cov radial thiab axial txav mus rau lub hau sab nraub qaum, vim yog inertia ua rau sab nraub qaum sib tsoo nrog lub nraub qaum kom tiv taus cov khoom loj dua. quab yuam, nce hnav thiab tsim kua muag.Feem ntau ntawm cov khoom siv nyob ze ntawm cov hniav los ntawm cov hniav ua rau lub ntsej muag ntawm cov hniav mus rau hauv cov dej ntws, thiab ib feem ntawm cov hniav nyob ze rau sab nraum qab ntawm cov khoom mus rau hauv txoj kev ntws.Morphology los ntawm impeller hnav thiab puas tshwm sim, los ntawm cov thawj ntug ntawm ntug ntug ntawm cov hniav hnav extensions.Kev sib xyaw ntawm cov khoom zoo, cov dej ntws ntawm cov hniav thiab cov hniav-hom txav trajectory ntawm curvature zoo ib yam li cov hniav ntawm lub ntsej muag ntawm kev hnav raug mob hnyav dua li cov hniav rov qab.

Gravel twj tso kua mis cov khoom tawm los ntawm cov hniav, qhov twg nyob rau hauv lub zoo hais me me tawm lub kaum sab xis raws lub trajectory ntawm txav.Nyob ib sab mus rau sab nraud ntawm lub impeller sib xyaw ua haujlwm,API tus qauv txhais tau tiascov khoom zoo muaj qhov me me radial tshaj tawm.Kev sib xyaw maj mam tawm ntawm lub impeller thiab sab hauv phab ntsa ntawm lub twj tso kua mis, cov khoom siv maj mam nce, lub impeller hniav qhov hluav taws xob ntug tiv taus txias sib tov lub luag haujlwm hniav qhov hluav taws xob ntug ntawm cov hniav hnav qhov phem tshaj plaws.