Xa ulwelo oluludaka olusebenzayo xa ivili lijikeleza kunye nemiba ephambili kunye, ngaxeshanye kwaye ukusuka kwi-impeller ejikelezayo kwinqwelomoya nganye.Ulwelo kunye nentshukumo ejikelezayo ye-impeller ibizwa ngokuba yi-circular motion, umlinganiselo wesiseko ubizwa ngokuba yi-peripheral speed, sebenzisa u uthe.Ulwelo olusuka kwi-impeller ejikelezayo ngaphakathi kumpompozo wangaphandle ubizwa ngokuba yintshukumo ehambelanayo , isantya saso esihambelana nesantya , esibonakaliswa kwi-W. ulwelo ngokunxulumene nentshukumo yomzimba wempompo eyaziwa ngokuba yintshukumo epheleleyo , isantya saso sibizwa ngokuba sisantya esipheleleyo , kunye no-V umele isantya esipheleleyo V kwaye u ilingana nesantya se-peripheral ye-vector yesantya esihambelanayo kunye ne-W, okt, V = u + W Isantya se-peripheral ye-impeller eqhuba ulwelo olujikelezayo ulwalathiso lomgca we-tangent, njengoko kubonisiwe kwi-2-1a);Isalathiso esinencakuba kwincakuba yesantya solwelo , isantya esipheleleyo sesantya solwelo sesantya solwelo sezantyana zesantya esidityanisiweyo kunye nesantya esinxulumeneyo , njengoko kubonisiwe - Isazobe 2.Igrafu ebonisa ulwelo kwisantya se-impeller kunye necala lentshukumo ibizwa ngokuba ngunxantathu wesantya.Ulwelo ngaphakathi kwesantya impeller kuyo nayiphi na indawo unxantathu eboniswe kuMfanekiso 2-2.Iqinile .Ngamanye amaxesha,umenzi wempompo enodakaeyona nto iluncedo sisishukumisi sokungena kunye nemo yokuphuma yolwelo.
Xa ubungakanani be-impeller busaziwa , iparameters ezinikiweyo , i-impeller inokwenziwa nge-inlet kunye ne-outlet velocity unxantathu , ukuze ulwelo luhlalutywe kwi-impeller inlet kunye nokuphuma kwemo yokuhamba.Ukuze kwenziwe unxantathu wesantya , isantya esipheleleyo siqhele ukubola sibe ngamacandelwana esantya se-orthogonal : enye yisantya esithe nkqo sesantya esijikelezayo , siqhele ukubizwa ngokuba yi- axial velocity , emelwe yiVm ;Olunye ulwalathiso luhambelana nesantya sesantya secandelo lesantya , elidla ngokulibiza ngokuba licandelo lesantya esijikelezayo , kunye neVm ithe , eboniswe kuMfanekiso 2-3 .
Kunxantathu wesantya, i-engile yesantya esipheleleyo V phakathi kwesantya esijikelezayo u-u kunye ne-engile exeliweyo phakathi kwesantya sokujikeleza sesantya esihambelanayo w imelwe ngu-u phakathi kwe-β.
Ixesha lokuposa: Jul-13-2021