Coriolis karfi

A kan na karya-kimiyya forums da ban mamaki mita ƙone tsanani muhawara game da abin da yake cikin Coriolis karfi, da kuma abin da suke ta gani manifestations. Duk da daraja shekaru binciken - sabon abu da aka bayyana a farkon 1833 - wasu mutane ne wani lokacin rude a karshe. Alal misali, tun da mafi yawan Coriolis karfi hade da mamaki a cikin tekuna da sararin sama, a kan internet ka iya samun da'awar cewa undermining na riverbanks na arewacin yammancin duniya ya auku a gefen dama, da kuma a cikin Southern scouring mataki na ruwa ne yawanci a kan hagu banki. Wasu jayayya da cewa wannan sabon abu Halicci Coriolis karfi. Da abokan adawar bayyana komai: daga juyawa na duniya ta m surface motsa dan kadan sauri (kasa inertia) fiye da nauyin ruwa da kuma saboda wannan bambanci ne canzawa. Ko da yake wasu daga cikin matakai faruwa a cikin teku, da gaske, "da laifi" na Coriolis karfi. Wahala a kayyade shi daga wani fanni na sauran tsoma. Coriolis bayyana matsayin da karfi na gravitational hulda m.

Bari ta ayyana irin ikon, kuma me ya sa yake da irin wannan amfani. Tun da mu duniya za a iya dauke da wani maras inertial tsarin (tafi da juya), sa'an nan wani tsari, kyan gani, dangane da shi, ya kamata la'akari da inertia. Yawancin lokaci amfani ga bayanin wannan musamman Pendulum tsawon mafi girma daga 50 m da wani nauyi na dubun kilo. Haka kuma, mun gwada tsit Kiyayewa tsaye a kasa jirgin sama a cikin abin da Pendulum swings rotates circumferentially. Idan darajar da rotational gudun duniya zai zama ya fi tsawon oscillation na Pendulum, ta notional jirgin sama za a rasa muhallinsu a cikin shugabanci na arewacin yammancin duniya, juyawa a gaban, a kan ci gaba sa'o'i gefe. Conversely, kara lokaci ne mafi girma fiye da na duniya ta juyawa kudi za su haifar da wani motsi a cikin shugabanci na tafiya kewaye iri na agogo. Wannan ya faru saboda gaskiyar cewa juyawa daga cikin duniya a cikin tsarin halitta mai rotational hanzari na Pendulum, a vector wanda canjawa da mirgina jirgin sama.

Don bayyana, za ka iya amfani da misali na rayuwa. Lalle ne, haƙĩƙa, kowane kamar yadda yaro hawa a kan carousel, wanda shi ne mai juyawa tare da wasu kusurwa gudu manyan faifai. Tunanin maki biyu a kan Disc, daya a kusa da tsakiyar axis (A) da kuma na biyu - a kusa baki zuwa radius (B). Idan wani mutum wanda shi ne a aya A, yanke shawarar da ya motsa zuwa batu B, sa'an nan, a duban farko, mafi kyau duka motsi hanya ne a mike layin A-B shi ne ainihin wani faifai radius. Amma tare da kowane mataki da mutum batu B aka canja, kamar yadda da Disc ne kadi. A sakamakon haka, idan muka ci gaba da motsa tare da shirya line-radius, cewa a lokacin da radius daga cikin aya B, shi ya ba zai zama saboda nuna bambanci. Idan mutane za su daidaita da hanya daidai da ainihin Jihar B, sa'an nan yanayin zai gabatar da wani mai lankwasa line, a kalaman, saman wanda aka directed a kan shugabanci na juyawa. Duk da haka, akwai wani hanya don samun daga A zuwa B a mike layin: shi wajibi ne don ƙara gudun motsi, mãsu jiki (mutum) hanzari. Tare da kara nesa A-B don kula da rectilinear motsi zama dole ga duk kara bugun jini kudi. Bambanci da aka bayyana ta da centrifugal karfi cewa a cikin shugabanci na karshen daidai da radius a kan juyawa karkara.

Saboda haka, motsi a kan wani juyawa abu yana da wani sakamako na Coriolis karfi. Da dabara shi haka:

F = 2 * v * m * cosFi,

inda m - taro na motsi jiki; v - gudun motsi. cosFi - darajar da daukan la'akari da kwana tsakanin shugabanci na motsi da axis na juyawa.

Ko, a vector misali:

F = - m * a,

inda wani - hanzari na Coriolis. "-" alama taso saboda karfi daga motsi jiki gaban shugabanci.