Kushandiswa kweMutemo waBernoulli: Kunzwisisa uye Zvazvinoreva Muhupenyu Hwezuva Nezuva
Pendauluan
Mutemo waBernoulli, wakawanikwa naDaniel Bernoulli muzana remakore rechi18, ndeimwe yepfungwa huru mu fluid mechanics. Mutemo uyu unotsanangura musimboti wekuti mukuyerera kwemvura, kuwedzera kwekufamba kwemvura kunoperekedzwa nekudzikira kwekumanikidzwa kana kudzikira kwesimba rinokwanisa remvura . Musimboti uyu une mashandisirwo akawanda anoshanda muhupenyu hwezuva nezuva uye munzvimbo dzakasiyana dzesainzi netekinoroji. Chinyorwa chino chichanyatsoongorora Mutemo waBernoulli, mamwe mashandisirwo awo, uye kuti unokanganisa sei zvinhu zvakasiyana-siyana zvehupenyu hwedu hwezuva nezuva.
Dzidziso Yekutanga yeMutemo waBernoulli
Pamasvomhu, Mutemo waBernoulli unogona kutsanangurwa seizvi:
\[ P + \frac{1}{2} \rho v^2 + \rho gh = \text{constant} \]
Di mana:
– \( P \) ndiyo kumanikidzwa kwakasimba,
– \( \rho \) ndiko kuwanda kwemvura,
– \( v \) ndiyo kumhanya kwemvura,
– \( g \) ndiko kukurumidza kunokonzerwa negiravhiti, uye
– \( h \) ndiko kukwirira kuri pamusoro penzvimbo yekunongedzera.
Mutemo uyu unoti kana mvura ichiyerera musystem yakavharwa, huwandu hwese hwesimba remakanika hunoramba hwakafanana, chero bedzi pasina simba rinorasika nekuda kwekuoma kana zvimwe zvinhu zvekunze.
Kushandiswa kweMutemo waBernoulli
1. Ndege neAerodynamics
Imwe yenzira dzakakurumbira dzekushandisa Mutemo waBernoulli ndeye mumapapiro endege. Mapapiro endege akagadzirwa kuti agadzire mutsauko wekumhanya kwemhepo pamusoro nepasi penzvimbo dzawo. Sekureva kweMutemo waBernoulli , mhepo inofamba nekukurumidza pamusoro pebapiro ine kumanikidzwa kwakaderera pane mhepo inofamba zvishoma nezvishoma pasi pebapiro. Musiyano uyu wekumanikidzwa unogadzira kukwira, izvo zvinoita kuti ndege ibhururuke.
2. Carburetor muInjini yeKupisa Kwemukati
Mumainjini ekupisa mukati anoshandisa macarburetor, Mutemo waBernoulli unoshandiswa kusanganisa mhepo nemafuta muzvikamu zvakakodzera. Mhepo inopinda nemumugwagwa wakamanikana (venturi) inowedzera kumhanya uye inodzikira mudzvinyiriro, zvichiita kuti mafuta akweverwe mukati uye asanganiswe nemhepo kuti pave nemusanganiswa unogona kupiswa zvakanaka.
3. Kufefetera uye Kuyerera kweMhepo muZvivako
Masisitimu ekufambisa mweya muzvivakwa anoshandisa musimboti waBernoulli wekuunza mhepo yakachena uye kubvisa mhepo yakare. Magadzirirwo emahwindo nemaburi emhepo anowanzo gadzirwa kuti akurumidzise kufamba kwemhepo kuti adzore kumanikidzwa kwemukati, zvichipa kunyaradza kwekupisa uye mhando yemhepo yakanaka.
4. Kuyerera kweRopa Mumuviri
Pfungwa yaBernoulli inokoshawo mune zvefiziyoloji, kunyanya mukuyerera kweropa mutsinga dzeropa. Kudzikira kwekuyerera kweropa, senge kunoitika mu stenosis (kutetepa kwetsinga dzeropa), kunogona kukonzera kuwedzera kwekumhanya kweropa uye kudzikira kwekumanikidzwa munzvimbo iyoyo. Kunzwisisa pfungwa iyi kunobatsira mukuongorora nekurapa zvirwere zvemwoyo.
5. Kuchinja kwemvura muzvikepe nezvikepe
Mumamiriro egungwa, maumbirwo ezvikepe nezvikepe zvakagadzirwa zvichienderana nepfungwa yaBernoulli yekuderedza kudhonzwa uye kuwedzera kumhanya. Izvi zvakakosha kwete chete pakushandisa mafuta zvakanaka asiwo pakugadzikana uye kuchengetedzeka pakufamba mugungwa.
6. Sprayer neCarburetor
Zvishandiso zvekupfapfaidza, zvakaita sema sprayers emop kana sprinkler, zvinoshandisa Bernoulli's Law. Kana mvura ikamanikidzwa kupinda nemumuromo mutete, kumhanya kwayo kunowedzera uye kumanikidzwa kwayo kunoderera, izvo zvinoita kuti zvimwe zvinwiwa kana mhepo zvikweverwe mukati uye zvisanganiswe nerwizi rukuru, zvichikonzera spray inoparadzira mvura yacho zvakanaka.
7. Mitambo neVaraidzo
Mumitambo, kunyanya mitambo yebhora (yakadai senhabvu, baseball, uye tennis), vatambi vanowanzoshandisa zvisina kujeka Bernoulli effect. Kana bhora richitenderedzwa, musiyano wekumhanya kwemhepo kuripoteredza unogadzira musiyano wekumanikidzwa, zvichiita kuti bhora ritenderere mumhepo. Chiitiko ichi chinozivikanwa seMagnus effect uye chinowanzo shandiswa nevatambi kugadzira mapfuti anonetsa kufungidzira kune vanopikisa.
Zvinorehwa neMutemo waBernoulli muKugadzira Tekinoroji
Nekufamba kwenguva, kunzwisisa Mutemo waBernoulli hakuna kungobatsira chete pakutsanangura zviitiko zvechisikigo asiwo kwakakurudzira kuvandudzwa kwetekinoroji kuri kuitika. Mienzaniso inosanganisira magadzirirwo emotokari dzinofamba nemhepo kuti dzivandudze mashandiro emafuta uye kugadzirwa kwematurbine emhepo anoshandisa mhepo kuti igadzire magetsi.
Pamusoro pezvo, matekinoroji ekurapa akadai seDoppler ultrasounds anoshanda zvichienderana nemutemo waBernoulli wekuona kuyerera kweropa uye kuona hutano hwemwoyo pasina nzira dzekurapa dzinopinda. Muindasitiri, kuyedzwa kwemhepo nemvura kunoshandisa musimboti uyu kuona kuti masisitimu ari kushanda zvakanaka uye zvakachengeteka.
Matambudziko uye Kuganhurirwa kweMutemo waBernoulli
Kunyange zvazvo Mutemo waBernoulli uine mashandisirwo akawanda, zvakakosha kuziva zvipingamupinyi nemamiriro ezvinhu ayo usingakwanise kushandiswa zvakananga. Semuenzaniso, mukuyerera kwemvura kwakasimba kana kwakashata, mhedzisiro yekukweshana uye kurasikirwa nesimba hazvigone kufuratirwa. Mumamiriro ezvinhu aya, mitemo yakaoma yemvura yakadai seNavier-Stokes equations inofanira kushandiswa.
Mhedziso
Mutemo waBernoulli ndiwo musimboti wemakanika emvura, ane mashandisirwo akawanda anoshanda anokanganisa hupenyu hwedu hwezuva nezuva, kubva pakugadzira ndege nekuvaka kusvika kuhutano nekuvandudzwa kwetekinoroji. Kunzwisisa zvakakwana mutemo uyu hakungotibatsiri chete kunzwisisa zviitiko zvechisikigo asiwo kunotungamira mukuvandudzwa kwemhinduro itsva kumatambudziko etekinoroji emangwana.
Kuburikidza nemienzaniso yakasiyana-siyana yekushandiswa yakakurukurwa, zviri pachena kuti Mutemo waBernoulli unoramba uchishanda uye uchikosha munzvimbo dzakasiyana-siyana. Nokudaro, kuramba tichidzidza nekunzwisisa mutemo uyu kuchatibatsira kushandisa zviri nani misimboti yefizikisi muhupenyu hwedu hwemazuva ano uye huri kushanduka.
