Isixazululo se-slurry pump inviscid flow solution
Ubuchwepheshe bokugeleza kwe-slurry inviscid flow buhlanganisa lokhu okulandelayo: (a) ithiyori ye-cascade flow theory enezinhlangothi ezimbili;(2) isisombululo sokugeleza esingaba nezinhlangothi ezimbili nezintathu;(3) izilinganiso ezimbili-ntathu ezilinganayo, umsebenzi wokusakaza;(4) izibalo ze-Euler ezinohlangothi ezimbili nezintathu;(5) ithiyori yokugeleza kwesibili.
Ithiyori ye-slurry-dimensional cascade iyindlela elula, esebenza kahle kakhulu ekucindezelweni nasekubikezelweni kwezomnotho.Linganisa futhi inkambu yokugeleza kancane kancane.Ngakho-ke, njengoba uProfesa uWu Zhonghua ehlongoze ukunikeza ubuso obubili obuphambene bethiyori evamile yokugeleza , izibalo zokugeleza kwezingxenye ezintathu-ntathu zenze imiphumela eminingi edonsa amehlo.Njengamanje, imboni yezimboni isetshenziswe kakhulu.U-Katsanits no-Meokally, u-Krimmerman no-Adler bathuthukise lobu buchwepheshe.U-Xin wasekhaya u-Xin Xiao Kang Jiang Jinliang wenze noma iyiphi indlela ye-Dingzhun orthogonal surface, u-Wu Yulin, njll. esebenzisa le ndlela ukubala umshini we-slurry pump hydraulic oxubile.
Ngawo-1980s, inkampane yekhompuyutha enganamatheli yashintsha izibalo ze-Euler, okungenxa yokugeleza okunamandla kwezinhlangothi ezintathu nezinye izindlela ezingakwazi ukucabangela umphumela we-whirlpool onganikezwa kukho konke ukulahlekelwa kwe-viscous okubhekane namanani okulahlekelwa.
Eminyakeni yamuva, igravel enganamatheli enezinhlangothi ezintathuiphampu ye-slurryI-computing iyavuthwa, abantu abaningi ngokwengeziwe baphendukela emsebenzini ikakhulukazi bahlanganisa indlela yokubala ukugeleza kwe-viscous kwengqimba yomngcele, indlela ye-Navier-Stokes yezibalo yengxenye yamakhemikhali kanye nezibalo ze-Navier-Stokes.
Izindlela ezivame ukusetshenziswa zokuxazulula umngcele yindlela ebalulekile kanye namaphoyinti endlela yomehluko olinganiselwe.Kusukela ekuthuthukisweni kobuchwepheshe bekhompiyutha, kamuva kancane kancane kwashintsha owokuqala.Iphampu ye-Arakawa et axial enezindlela ezibalulekile zokuxazulula isendlalelo somngcele onezinxushunxushu ezinezinhlangothi ezintathu ku-blade;Indlela yokuhlanganisa ye-Lakshminarayana efana nokusebenzisa i-turbine blade kanye ne-impeller opium dimensional edge class mobility, i-coefficient yokungqubuzana phakathi kwendawo ngokusebenzisa ukwethulwa kwendlela eguquliwe icabangela ukuzungezisa, ukugoba nomphumela wegradient wokucindezela okwamanje.Ukuthekelisa kwe-Vasta kokujikeleza okungewona we-orthogonal kuqondisa izilinganiso zesendlalelo somngcele ezihambisanayo nendlela yesixazululo;U-Anderson wenze ukuthuthukiswa okuthile, esebenzisa ingcindezi elinganisiwe kanye nobuso bezibalo ze-Euler,Izinyathelo zokusebenza zephampu ye-slurrydweba ungqimba lomngcele izimo zomngcele wangaphandle, bese ubala ukuzungezisa kwehlela ukugeleza kwendawo yokucindezela.Umphumela wendlela yomehluko okhawulelwe uhlanganiswa nokuhlola, i-Wu Yulin, ukubala imishini yokonga amanzi ezimeni ezingadizayiniwe, zibikezele ukuhlukaniswa kwendawo komphetho we-impeller oholayo nolandelayo.
Ingxube ye-Gravel pump solid-liquid igeleza ingene eshubhuni elifushane isuka kumshini wokumunca, izinhlayiya eziqinile zingene ekuhambeni kwe-radial ne-axial kuya kwesembozo sangemuva, ngenxa ye-inetia esebenza kukhava yangemuva yashayisana nesembozo sangemuva ukuze imelane nomphumela wezinhlayiya ezinkulu. amandla, ukwanda kokuguga nokukhala.Iningi lezinhlayiya eziqinile eduze kwe-blade kusuka ku-blade ehola ubuso be-blade kumzila wokugeleza, kanye nengxenye ye-blade eseduze ngemuva kwezinhlayiya endleleni yokugeleza.I-Morphology evela ekugqokeni kwe-impeller nemiphumela yokuhuzuka, kusukela emaphethelweni aphambili onqenqema olungemuva lwe-blade igqoka izandiso.Ukupompa ingxube yezinhlayiya ezinhle, umgudu wokugeleza wensingo kanye nohlobo lwe-blade olunyakazayo lokugoba olufana nobuso be-blade bokugqoka kuhlupheke kakhulu kunama-blade angemuva.
Iphampu yamatshe izinhlayiya eziqinile eziphuma ku-blade, lapho ezinhlayiyeni ezincane i-engeli yokuphuma eduze komzila wokunyakaza.Eduze nendawo engaphandle yendawo yokugeleza kwengxube ye-impeller,I-API standard meanizinhlayiya ezinhle zine-velocity encane ye-radial.Ingxube ikhishwa kancane kancane ku-impeller kanye nodonga lwangaphakathi lwe-peripheral lokugeleza kwepompo, izinhlayiya eziqinile zanda kancane kancane, i-impeller blade outlet edge imelana nengxube ebandayo yendima ye-blade outlet ye-blade igqoke izingxenye ezimbi kakhulu.
Isikhathi sokuthumela: Jul-13-2021