Pombi ine grooved imhando yepombi ine grooved mushure mekumoneredzwa. Yakajairika: pombi ine denderedzwa, pombi ine grooved oval, nezvimwewo. inonzi pombi ine grooved nekuti grooved yakajeka inogona kuonekwa muchikamu chepombi. Rudzi urwu rwepombi runogona kuita kuti mvura ifambe nepamadziro ezvivako izvi zve turbulence, kugadzira nzvimbo dzekuparadzanisa flow, uye kugadzira ma vortices ane simba nehukuru hwakasiyana. Ndiwo ma vortices aya anochinja chimiro chekuyerera kwe fluid uye kuwedzera turbulence pedyo nemadziro, kuitira kuti ivandudze convective heat transfer film coefficient ye fluid nemadziro.

a. Tubhu remugero rinotenderera Tubhu remugero rinotenderera rinotenderera rinotenderera girobhu rinotenderera rinotenderera girobhu rakati sandara kana girobhu rinotenderera rine denderedzwa rakati sandara uye kudzika kubva kunze kwechubhu yakatenderera zvichienderana nezvinodiwa zvekugadzira, uye rinogadzira ribhu rakati sandara rinobuda kana ribhu rinotenderera pamadziro emukati mechubhu, sezvakaratidzwa muMufananidzo 1. Goho riri pamadziro ekunze uye kubuda pamadziro emukati mechubhu kunogona kuwedzera kutamiswa kwemvura kumativi ese echubhu panguva imwe chete. Rakakodzera zvakanyanya kusimbisa kutamiswa kwekupisa kwemvura yechikamu chimwe chete muchubhu uye kuwedzera kuunganidzwa kwemhepo nemafuta uye kutamiswa kwekupisa kwemvura kunze kwechubhu iri muheat exchanger.

b. Pipe ine groove ine spiral groove imwe chete uye multi pass spiral nedzimwe mhando. Mushure mekuumbwa, pane groove ine spiral angle yakati kunze kwepipe ye spiral groove, uye kune mbabvu dzakatenderedza dzinoenderana mupipe. Spiral groove haifanirwe kunge yakadzika zvakanyanya. Kana groove yakadzama, kuramba kuyerera kwakanyanya, spiral angle yakakura, uye coefficient ye heat transfer film ye groove tube yakakura. Kana mvura ichigona kutenderera ne groove, huwandu hwe threads hahuna simba guru pakutamiswa kwe heat.

c. Pombi ine cross grooved inoumbwa nekutenderera kunoramba kuchichinja-chinja. Kunze kwepombi kune cross groove inopindirana ne axis yepombi pa 90 °, uye mukati mepombi mune cross groove ine convex. Mushure mekunge mvura yayerera nepa convex iri mupombi, haiburitse spiral flow, asi inogadzira axial vortex groups muchikamu chose, kuitira kuti isimbise kupisa. Cross threaded tube ine simba guru rekusimbisa kupisa kwe film boiling heat transfer yemvura iri mupombi, izvo zvinogona kuwedzera boiling heat transfer coefficient nekatatu-kasere.