Ike mai ai ia i ka Reynolds helu

O ka poe i mamao mai ke kālaikūlohea, ua hoolaa ai. Omaka i ke kikokikona ole au e hiki ole, no ka mea, o ka helu o Reynolds kino au i ole i kekahi pane i loko o ka hapa o ka ike o kahi e hoahu i ka 'ike i loko o ke kālaikūlohea. E ka ho'āʻo e hoʻopiha i kēia nahā i.

E mahana möakäka hou mea Osborne Reynolds ua i kekahi manawa i loko o ko lākou mau kula. Kēia nä känaka 'epekema i kekahi' elele o ka 'ōlelo Pelekānia (kekahi kumu - Ipelana) scientific kaiāulu i loko o ka mahinaʻai o ke kālaikūlohea,' enekinia, a me ka neaa. Hânau 'ia i ka 1842, ma hope o 28 makahiki, lilo iho la oia i kekahi Kumu ma ka Oihana o mall mechanics ma Kamepelika. Kona noiʻi alakai e malama i ka hana o ka loli ma ka laminar (pona) a me ka māpuna (vortex) pele. I ka mea, o ka mea e auaaeaiea o ka laulā ana o ka hoʻololi o kekahi 'ano o ka papa i kekahi. Keia mea ua hoikeia mai ia iā mākou me ka Reynolds helu.

He aha mea i ke ano o ka? Kēia aiao mea,ʻaʻole ikaika a me ka mea i kekahi lākiō o inertial koa a me na kū'ē i loko o ke kinowai pele. Like i kapa i ka mea ana i hoʻohana Re. Me ka pili ana i ka huahelu ana, a laila, loaʻa nō ka mea, no ka mea, o ka Reynolds helu no ka wai, kinoea, a i kekahi'ē aʻe meakino mea he dimensionless nui (helu no hoon).

ʻo lāua hewaʻiʻo ka mahalo perseverance English nä känaka 'epekema, ka poe i e pana aku au i ho'āʻo ai i oi aku mamua o hookahi haneri, e hōʻike e like me ka pili. He ua hiki ke kuhikuhi i ke kēia kumu: ma kiʻekiʻe holo 'awelika (oi ma mua o 2 - 3 miliona), ka wai kahe i piha māpuna, a no ka poe liilii, - loa laminar.

He nui o kēia mau helu i kapa ai i nāʻikepili a i loaa wale empirically, a me ka hoʻololi 'ole mana loa repetition e "haule mai" o kaʻikena maoli. Eia naʻe, he nui loa aku ana ke ano o ia mau mea, mai ka oiai ua o Newton mau kānāwai. Ma na mea hua'ōlelo, ka loli waikahe mai i kekahi 'oni' a me ka mālama i ka malama i kona ana ma ka ia māmā.

Ka nui o keia ana, e like me kaʻikepili mai kekahi mau kumu, hiki ole ke overemphasized. He kēia waiwai a me ka rula o kona? Iecaianoaaiiuo hai mai ai i ka hopena o ke kaiapuni (ka wai, ke kinoea ole ē paha i ho'ākāka) mea,ʻaʻole nui e kaukaʻi ma o ka māmā holo, 'oni' a me ka kū'ē, pehea ka nui o ko lākou AaOIeIOUIeXAOAaIN. He keia AaOIeIOUIeXAOAaIN, a ua lewa i loko o ka lākiō, a ua kapaia o ka "Reynolds helu". No ka wai, i ka neʻeʻana o ka a ia lŘlŘ ma ka puali ololi auwai a (a paipu), "palena" anakahi E hoʻololi waiwai aku i ke anakahi 12000 - 20000. An hua ia'ku o ka meakino, e māhuahua. Ka wai i loko o ke kahua a puni, a mawaho o ke kiʻi e e hulu: mahuahua Reynolds helu waiwai, e emi i ke ea.
Kona hoʻohana no keia ana iʻaʻole wale nō i loko o loli mechanics, akā, i loko o maunakea a me ka shipbuilding. No ka laʻana, ka mea, o ka Reynolds helu apono 'ike loea ikea ai o ka hou mokulele Ke Ana Hoʻohālike, hoopau ai i ke paʻi i ka maoli hana o ka ea pele i loko o ka hoemiia kŘkohu.

PS ia i ka ho omaulia haʻilula 'aʻole e lawe me ka manao: ina o ka mea heluhelu hoihoi i loko o keia kumuhana, aʻo i ka mea o ka i ka ho omaulia ana o ka mea nui,ʻaʻole e e pilikia.