Umbhobho we-grooved luhlobo lwepayipi ene-groove emva kokuqengqeleka. Okuqhelekileyo: umbhobho ojikeleziweyo ojikelezayo, umbhobho we-oval grooved, njl. Olu hlobo lombhobho lunokwenza ukuba ulwelo luhambe eludongeni lwezi zakhiwo zesiphithiphithi, luvelise iindawo zokwahlula okuhambayo, kwaye zenze ii-vortices ezinobunzima kunye nobukhulu obahlukeneyo. Ngala ma-vortices atshintsha ukwakheka kokuhamba kwamanzi kunye nokwandisa i-turbulence kufuphi nodonga, ukwenzela ukuba kuphuculwe i-coefficient yefilimu yokudlulisa ubushushu be-convective yolwelo kunye nodonga.

a. Umbhobho oqengqelekayo wetyhubhu kukuqengqeleka umqolo oxwesileyo okanye umjelo ojikelezayo onepitch ethile kunye nobunzulu obusuka ngaphandle kombhobho ojikelezayo ngokweemfuno zoyilo, kwaye wenze ubambo oluthe tyaba oluthe tyaba okanye imbambo engqukuva kudonga lwangaphakathi lombhobho. , njengoko kuboniswe kuMzobo 1. I-groove eludongeni lwangaphandle kunye ne-protrusion eludongeni lwangaphakathi lombhobho unokuphucula ukuhanjiswa kobushushu bolwelo kumacala omabini ombhobho ngaxeshanye. Kufanelekile ngokukodwa ukuqinisa ukuhanjiswa kobushushu bolwelo lwesigaba esinye kumbhobho kunye nokuphucula ukuxinaniswa komphunga kunye nefilimu yolwelo ebilayo ukuhanjiswa kobushushu bolwelo ngaphandle kombhobho kutshintshiselwano lobushushu.

b. Umbhobho we-Spiral grooved une-pass enye kunye ne-multi pass spiral kunye nezinye iintlobo. Emva kokuyila, kukho igroove ene-engile ethile ejikelezayo ngaphandle kombhobho we-spiral groove, kwaye kukho iimbambo zeconvex ezihambelanayo kumbhobho. I-spiral groove akufanele ibe nzulu kakhulu. Okukhona ubunzulu bomsele, kokukhona ukuchasana nokuqukuqela okukhulu, kokukhona i-angle ye-spiral, kwaye inkulu i-coefficient yefilimu yokudlulisa ubushushu yetyhubhu ekroliweyo. Ukuba ulwelo luyakwazi ukujikeleza ecaleni kwegroove, inani leentambo linempembelelo encinci ekugqithiseni ubushushu.

c. Umbhobho we-cross grooved wenziwa ngokuguquguquka kwecandelo eliguquguqukayo eliqhubekayo. Umphandle wombhobho yi-groove enqamlezayo enqumla i-axis yombhobho kwi-90 °, kwaye ngaphakathi kombhobho yimbambo ye-convex enqamlezileyo. Emva kokuba i-fluid idlula kwi-convex rib kumbhobho, ayivelisi ukuhamba kwe-spiral, kodwa ivelisa amaqela e-axial vortex ecaleni kwecandelo lonke, ukuze komelezwe ukuhanjiswa kobushushu. Umnqamlezo ityhubhu inefuthe elikhulu ukomeleza kwifilimu ebilayo ukudluliselwa kobushushu bolwelo kwityhubhu, enokunyusa ubushushu obubilisiweyo bokudlulisa ubushushu ngamaxesha angama-3-8.