Lub tshuab sib tov hmoov yog ib lub tshuab siv los sib tov ntau yam hmoov sib xyaw ua ke. Nws txoj kev ua haujlwm yog ua raws li cov txheej txheem sib tov yooj yim xws li kev sib tov convection, kev sib tov shear, thiab kev sib tov diffusion, ua rau cov khoom sib tov sai thiab sib xyaw ua ke hauv lub sijhawm luv luv.
Kev sib xyaw cov hmoov khoom siv dav dav hauv kev tsim khoom lag luam, ua rau nws yog ib feem tseem ceeb ntawm cov txheej txheem tsim khoom. Piv txwv li, hauv kev tsim khoom noj, chiv ua liaj ua teb, tshuaj, thiab tshuaj lom neeg txhua hnub, cov ntaub ntawv ntawm cov khoom sib txawv yuav tsum tau sib xyaw ua ke hauv qee qhov sib piv ua ntej ua tiav kom tau txais cov khoom kawg. Thaum lub sijhawm tsim khoom, kev sib npaug ntawm cov hmoov faib ncaj qha cuam tshuam rau cov khoom kawg.
Kev sib xyaw cov khoom siv yog hais txog cov txheej txheem txav mus los nyuaj uas ob lossis ntau dua cov khoom me me hloov pauv hauv qhov chaw thiab qhov ceev nyob rau hauv kev cuam tshuam ntawm cov zog sab nraud (lub zog kho tshuab lossis lub ntiajteb txawj nqus), ua rau muaj kev sib koom ua ke ntawm ntau cov khoom me me los ntawm kev txav mus los sib piv thiab kev nkag mus rau hauv lawv cov khoom me me. Cov txheej txheem no feem ntau ua rau muaj kev faib tawm sib npaug ntawm ntau yam khoom sib txawv. Vim yog qhov sib txuas ua ke ntawm macroscopic thiab microscopic discreteness ntawm cov khoom me me, kev sib xyaw cov khoom me me nrog cov khoom sib txawv qhia txog cov txheej txheem chaotic heev.
Kev sib tov hmoov qhuav yog hais txog cov txheej txheem ntawm kev sib tov ob lossis ntau dua cov hmoov qhuav kom ntseeg tau tias muaj kev faib tawm tas li ntawm txhua yam khoom. Cov thev naus laus zis no siv dav hauv: kev lag luam khoom noj (hmoov, txuj lom, hmoov dej haus, premixes, thiab lwm yam), kev lag luam tshuaj (sib tov cov khoom xyaw nquag thiab cov khoom siv), kev lag luam tshuaj lom neeg (chiv, tshuaj ntxuav tes, cov khoom siv yas, thiab lwm yam), thiab kev lag luam pub tsiaj (sib tov cov nplej, cov vitamins, thiab cov zaub mov).
Feem ntau, kev sib tov hmoov yog nyob ntawm kev sib koom ua ke ntawm peb txoj kev: convection, shearing, thiab diffusion.
Kev sib tov convection cuam tshuam nrog kev txav mus los loj ntawm cov hmoov me me. Nyob rau hauv kev cuam tshuam ntawm lub zog sab nraud, cov hmoov me me dhau los ua kua dej convection, txav mus los ntawm ib qho mus rau lwm qhov, ua tiav kev faib tawm sib npaug thoob plaws thaj chaw loj.
Kev txiav cov hmoov sib xyaw ua ke yog kev txiav cov hmoov sib xyaw ua ke hauv cov pawg hmoov. Nyob rau hauv kev cuam tshuam ntawm lub zog sab nraud, cov hmoov me me yuav plam rau ib leeg, ua rau muaj ntau qhov chaw swb hauv cov khoom siv. Cov chaw no sib xyaw thiab sib xyaw zoo li cov kua nyias nyias, txuas ntxiv txiav cov hmoov kom sib npaug hauv cov cheeb tsam.
Kev sib xyaw ua ke ntawm cov khoom sib ze yog ib qho txheej txheem sib xyaw ua ke ntawm ob lub khoom sib ze ntawm qib microscopic. Vim muaj kev hloov pauv ntawm qhov chaw sib piv ntawm cov khoom sib ze, kev nkag mus thiab kev sib xyaw ua ke tshwm sim, ua rau cov khoom siv ua tiav qhov sib xyaw ua ke tag nrho.
Cov txheej txheem sib tov tuaj yeem muab faib ua peb theem: kev sib tov convective, ib theem uas muaj ob qho tib si convection thiab shear, thiab kev sib tov diffusion.
Theem 1: Theem no feem ntau cuam tshuam nrog kev sib tov convective, nrog rau qhov ceev sib tov sai.
Theem 2: Theem no cuam tshuam nrog cov teebmeem ua ke ntawm convection thiab shear, ua rau lub sijhawm sib tov ntev dua.
Theem 3: Qhov no yog theem sib tov sib kis, qhov twg qhov sib tov nyob rau hauv qhov sib npaug ntawm kev sib tov thiab kev sib cais, nrog rau qib ntawm kev sib xws hloov pauv nyob ib puag ncig qee tus nqi.
Lub sijhawm tshaj tawm: Lub Rau Hli-06-2026