Tus Kab Sib Xws Hauv Cov Kua Thiab Cov Av Sib Nqus

Mathematically, nws yog txuas ntawm electromagnetic teb kab ke thiab dej txav kev sib luag. Raws li Faraday' s txoj cai ntawm kev ntsuas hluav taws xob, lub cev txav mus rau hauv cov khoom sib nqus yuav tsim muaj lub zog hauv lub tshuab hluav taws xob hauv lub voj voog uas txav nrog cov kua. Yog hais tias tus neeg xyuas pib yog tus neeg xyuas pib zoo nrog infinite conductivity, qhov uas tam sim no yuav tsis muaj qhov kawg, uas yog qhov tsis yooj yim pom. Yog hais tias qhov sib nqus flux hauv cov lus tsa suab tsis tu ncua tas li, cov kab sib nqus ntawm lub zog yuav tsum txav mus nrog cov kua dej, ib yam li cov kab sib nqus ntawm lub zog thiab cov kua dej khov kho ua ke. Qhov tshwm sim no hu ua" khov" cov txiaj ntsig ntawm qhov chaw hlau nplaum, uas yog, qhov chaw sib nqus thiab kua dej ua kom khov khov. Qhov sib npaug txaus los ntawm qhov sib nqus hauv lub sijhawm no yog hu ua" khov dej kom sib npaug" ;. Thaum lub conductivity ntawm cov kua txwv, ntxiv rau tas mus li thaum tshav kub kub Joule, qhov chaw magnetic yuav txuas ntxiv mus ntawm qhov chaw muaj zog mus rau thaj chaw tsis muaj zog. Yog li no feem ntau, qhov chaw hais sib nqus hauv cov kua hluav taws xob (conductive fluid) yog tswj los ntawm cov nyhuv kom khov thiab yuav txuas ntxiv mus. Qhov sib npaug txaus siab rau lub sijhawm no yog hu ua" diffusion freezing equation" ;. Qhov cuam tshuam ob ntawm qhov khov thiab qhov sib txawv yog cuam tshuam nrog qhov tshaj tawm (v) thiab nplai (L) ntawm cov kua dej ntxiv rau ntawm qhov hluav taws xob (conduct). Hauv hluav taws xob cov kua hluav taws xob muaj qhov tsis sib xws, qhov ntev ntev tau txhais raws li cov hlau nplaum viscosity coefficient. Thaum RM>> 1, qhov cuam tshuam rau hauv cov kua dej yuav ua kom nrov; thaum RM< 1,="" qhov="" tshwm="" sim="" tsis="" zoo="" yuav="" muaj="">