Diffusive flux yog dab tsi?

Cov txheej txheem:

Diffusive flux yog dab tsi?
Diffusive flux yog dab tsi?

Video: Diffusive flux yog dab tsi?

Video: Diffusive flux yog dab tsi?
Video: Rov qab mus txog wb thaj qub teb. 10/14/2017 2024, Hlis ntuj nqeg
Anonim

Fick thawj txoj cai J yog qhov sib txawv ntawm qhov sib txawv, ntawm qhov qhov dav yog tus nqi ntawm cov khoom hauv ib cheeb tsam ntawm ib lub sijhawm. J ntsuas tus nqi ntawm cov khoom uas yuav ntws los ntawm ib cheeb tsam nyob rau hauv ib chav tsev lub sij hawm ncua.

Yuav ua li cas cuam tshuam rau cov kab mob sib kis?

Qhov sib txawv ntawm qhov sib txawv ntau dua, qhov nrawm dua. Qhov kub siab dua, lub zog kinetic ntau dua cov khoom yuav muaj, yog li lawv yuav txav thiab sib tov sai dua. Qhov loj dua qhov chaw saum npoo, qhov nrawm nrawm dua.

Dab tsi ua rau muaj qhov sib txawv?

Ntau qhov concentration gradient kuj ua rau kom cov dej ntws mus rau hauv cov ntaub so ntswg. Qhov no tuaj yeem ua tiav los ntawm kev txo qis cov kua dej nruab nrab lossis ua kom cov capillary concentration siab los ntawm kev ua kom cov dej ntws hauv lub capillary.

J flux huab hwm coj hloov pauv yog dab tsi?

Hauv physics thiab engineering, huab hwm coj flux yog tus nqi ntawm huab hwm coj . Cov cim feem ntau yog j, J, q, Q, φ, lossis Φ (Greek qis lossis peev Phi), qee zaum nrog subscript m los qhia qhov loj yog qhov ntau txaus. Nws SI units yog kg s1.

Yuav ua li cas convective fluxes txawv dua li diffusive fluxes?

Lub convective flux yog txhais raws li qhov nruab nrab tshaj tawm. Lub diffusive flux txhais tau tias yog sib txawv ntawm tag nrhothiab convective fluxes.

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