Ngokusekwe kwi-k-ε (k yi-turbulent kinetic energy, ε yi-turbulence dissipation rate) imodeli yesiphithiphithi, eli phepha lisebenzisa isantya sokuhamba kobunzima bokungena kunye noxinzelelo lokuphuma olumileyo njengeemeko zokubala zamanani ukuseka imodeli yokulinganisa yamanani yendawo yokuhamba yangaphakathi ivalve ye-diaphragm. Ukuchaneka kuye kwaqinisekiswa ngokomfuniselo. Ngesi siseko, imodeli yayisetyenziselwa ukuhlalutya iimpawu zokuhamba kwangaphakathi kunye noxinzelelo lwentsimi yokusabalalisa i-valve yomzimba phantsi kweemeko ezahlukeneyo zokungena kokungena (2.787kg / s ukuya kwi-33.273kg / s), kunye nobungakanani obuchanekileyo bezinga lokungena kunye ne-valve. ilahleko yentloko yomzimba yasekwa. ubudlelwane. Iziphumo zibonisa ukuba: 1) Ukulinganisa kwamanani kunokuqikelela kangcono ukulahleka kwentloko ye-valve yomzimba phantsi kweemeko zokuhamba ezahlukeneyo. Xa izinga lokungena lokungena liyi-5.546kg / s, i-11.091kg / s kunye ne-16.637kg / s ngokulandelanayo, impazamo ehambelanayo phakathi kovavanyo kunye nokulinganisa kwamanani kuphela -6.433%, 4.619% kunye ne-7.264%. 2) Ngaphantsi kwemeko yokungena rhoqo, ukusuka kwi-inlet ukuya kwi-outlet, uxinzelelo lwe-static kumjelo wokuhamba lubonisa ngokubanzi ukuhla kokunciphisa. Ngaphakathi kumzimba wevalvu, umjelo wokuhamba uyacutheka ngenxa yokuphazamiseka kwevalve sill kunye nokuhamba kubetha i-diaphragm kubangela ukuphambuka. Uxinzelelo olukhulu lwe-static gradient. 3) Emva kokuba ukuhamba kwamanzi kudlula kumjelo omncinci kwi-valve sill, i-cavitation zone ecacileyo yenziwa phantsi kwe-valve body, ihamba kunye nesiganeko esithile sokubuyela umva. Indawo ye-cavitation ezantsi kwe-valve yomzimba ibonakala kakhulu kwi-domain ye-1/3 yamanzi ukusuka kwi-outlet. , njengoko ukunyuka kwe-inlet kuyanda, i-vortex ezantsi kwe-valve yomzimba iba yinto enzima kakhulu kwaye i-backflow phenomenon iba yinto ephawulekayo, kodwa ububanzi bendawo yokubuyela umva awunyuki kakhulu. 4) Ngokusekelwe ekuqinisekiseni ukuchaneka komzekelo, imodeli yayisetyenziselwa ukuhlalutya ngakumbi iimpawu zokuhamba kwangaphakathi kunye nokuhanjiswa kwentsimi yoxinzelelo lwe-valve yomzimba phantsi kweemeko ze-18 zokungena ngaphakathi, kunye nokuseka ubudlelwane bobungakanani phakathi kwe-inlet mass flow rate Q kunye no ivalve yomzimba ilahleko △P , xa i-inlet mass flow Q isuka kwi-2.787kg/s ukuya kwi-15.428kg/s kwaye inombolo yeReynolds isuka 37927 ukuya ku-215984, i-equation efanelekileyo ithi △P=2076.31Q-7567.49, R2=0.964; I-inlet mass flow isuka kwi-17.141kg/s ukuya kwi-33.273kg/s, i-equation efanelekileyo xa inombolo ye-Reynolds isuka ku-240097 ukuya ku-467009 ngu-△P=5688.02Q-67317.39, R2=0.993 ye-hydrlic basis ye-hydrlic wombhobho wokunkcenkceshela womnatha.