Kaha resistance Air - a kahore i roto i tetahi ara

E na taunga ki te karapotia e te hau e kore maha e whakarongo ki reira matou. Ko konei te wāhi, ki runga ake katoa, te tono o raruraru hangarau, wareware te otinga o nei i te tuatahi ko te e reira ko te kaha o te rangi resistance.

fakamanatu reira o ano i roto i tata tetahi mahi. Ahakoa ka haere matou i te motokā, ahakoa rere te waka rererangi, ara, ki te matou tika maka te kohatu. Na tamata ki te matau ki ta te ope o te rangi ātete i runga i te tauira o ngā take ohie.

Kua miharo ake koe he aha waka i te āhua kaunuku me te mata papatahi? Ko te reira mau rawa mārama. tito ātete kaha Air te o rua rahinga - te ātete mata waku o te tinana, me te āhua o te ātete tinana. I roto i te tikanga ki te whakaiti i te kaha waku me te whakatutuki i whakaiti o kōtītiti me roughness runga i te wahi i waho mō te motokā ahumahi me tetahi atu waka.

Ki te mahi i tenei, primed ratou, poke, oro, me te lacquered. Taua workpieces arata'i ki te meka e te heke te ātete rangi mahi i runga i te waka, nui haere te tere waka kei te ka heke wahie kohi te ka peia. Ko te aroaro o te ope ātete tika ki te meka e ka te neke i te waka kōpeke te rangi e a i mua i hanga reira he wāhi rohe o te pēhanga tiketike, aru i, aua, te rohe korehau.

Me kï reira e i tere mīhini nui takoha matua i roto i te puka o te ātete ki te hanga waka. Power resistance tātai tātaitanga whakaaturia nei te raro nei, tāutu te āhuatanga i runga i nei whakawhirinaki ratou.

Ko te kaha ātete = cx * S * V2 * r / 2

te wahi S - te wāhi ngä mua o te mīhini;

Cx - whakarea tango ki pūkete rangi resistance;

V - tere;

r - kiato rangi.

Ka rite ki ngāwari kitea i te runga ake tātai, te kaha o te kore e ātete whakawhirinaki i runga i te papatipu waka. hanga te takoha matua te o rua wāhanga - te tapawha o te tere me te āhua o te motokā. ie na roto i te whakanui ake i te tere o rua ki te wha nga wa ki te whakapiki ake i resistance. Tiro pai ripeka-motu o te waka he mana nui. Ka waiho te waka atu kaunuku, te raro te ātete rangi.

A i roto i te tātai i reira ko te tawhā e titau noa ki te kawe i te reira ki te aro - te kiato o te rangi. Ko tona pānga te kua ake korerotia i roto i te manureva. Kei te mohiotia te reira e ki te whakanui ake teitei heke te kiato rangi. Na reira ka whakaiti i te kaha o tona resistance. ka haere tonu ko te taua āhuatanga ki te pā i te manureva i runga i te uara o te resistance - tere, me te puka.

No pākiki iti ko te hītori o te ako o te mana rangi i runga i te tika. ka mau Works o tenei āhua wahi i mua, ana nga whakaahuatanga tuatahi ki te 1742. kawea ngā i roto i roto i whenua rerekē ki te āhua rerekē o matā me projectiles. Ka rite ki te hua o te rangahau puka ikeiketanga o te matā i takoto a e hangaia te ōwehenga o tona matenga, me te hiawero wahi o te tepu matā whanonga ballistic i roto i te rere.

whakahaeretia rangahau i muri i rite ki te matā i tona tere, ua tamau noa te reira ki te hei puka mahi o matā, me te pai ake tikanga o te rangahau. Kua whakawhanakehia matou tauira pāngarau o te whakarea ballistic - hanga i te taputapu pāngarau motuhake te. E whakaatu ana ia i te ōwehenga o ope te tō aerodynamic me ope inertial mahi i runga i te matā.

Ko te tuhinga whakamārama ana i te ope, ko te rangi ātete, homai he tātai e e taea ki te whakatau i te rahi me te whānuitanga o te mana o ngā āhuatanga i runga i te nui o te ātete, whakaaro tona pānga kei roto i mara ngā o te hangarau.