Fenómenos de Transporte Por Radiación

 

 HLCÞFLCD^ OL _WKC^]DW_L ]DW WKOJKNJÞC

‒Bk rkojknjþc ls uc flnkcjsfd lblntrdfkicênd qul plrfjtl lb trkcspdrtl ol lclriæk k bk vlbdnjoko ol bk buz k trkvês ol rlijdcls olb lspknjd olsprdvjstks ol fktlrjk y bk vlbdnjoko ol trkcspdrtl ol lclriæk lctrl ods nulrpds "clirds" lc lb vknæd ls prdpdrnjdckb k bk ojhlrlcnjk ol bks nukrtks pdtlcnjks ol sus tlfplrkturks kgsdbutks‖. ^l bl bbkfk  bbkfk rkojknjþc têrfjnk k bk lclriæk lfjtjok pdr bk fktlrjk qul sl lcnulctrk k

uck tlfplrkturk okok, sl prdounl ojrlntkflctl olsol bk hulctl aknjk khulrk lc tdoks bks ojrlnnjdcls nukcod uc nulrpd sþbjod sl nkbjlctk bk suplrnjl olb sþbjod lfjtl rkojknjþc nuyk bdcijtuo ol dcok lstë ndfprlcojok prjcnjpkbflctl lc lb jctlrvkbd ol =.; k ;= fjnrks. Lstk rkojknjþc sulbl olcdfjckrsl rkojknjþc têrfjnk.

 Lstk lclriæk ls prdounjok pdr bds nkfgjds lc bks ndciurknjdcls lblntrþcjnks ol bds ëtdfds d fdbênubks ndcstjtutjvds y trkcspdrtkok pdr dcoks lblntrdfkicêtjnks d hdtdcls, pdr bd rlnjgl lb cdfgrl ol rkojknjþc lblntrdfkicêtjnk.

LB L^]LN_WD OL WKOJKNJÞC LBLN_WDFKICÊ_JNK 

 

]krk lctlcolr ndc fës nbkrjoko lb hlcþflcd ol trkcspdrtl pdr flojd ol bk rkojknjþc olglfds ndcdnlr bd qul sl bl bbkfk lsplntrd ol rkojknjþc lblntrdfkicênk lblntrdfkicênk qul lstë lc rlbknjþc ojstrjgunjþc lclriêtjnk olb ndceuctd ol bks dcoks lblntrdfkicêtjnks.

Ktlcojlcod k su bdcijtuo ol dcok, bk rkojknjþc lblntrdfkicêtjnk rlnjgl ojhlrlctls cdfgrls y vkræk olsol bds lclriêtjnds rkyds ikffk, ndc uck bdcijtuo ol dcok fuy ndrtk olb drolc ol pjnþfltrds ndc hrlnulcnjks fuy kbtks akstk bks dcoks ol rkojd ndc bdcijtuols ol dcok fuy bkriks olb drolc ol `jbþfltrds hrlnulcnjks fuy gkeks. ]kskcod pdr bk buz vjsjgbl, nuyk bdcijtuo ol dcok lstë lc lb rkcid ol bks oênjfks ol fjnrþfltrd. Lb rkcid ndfpbltd ol bdcijtuols ol dcok ls bd qul sl olcdfjck lb lsplntrd lblntrdfkicêtjnd. bk bdcijtuo ol dcok sl nkbnubk ndc bk sjiujlctl hþrfubk5 odcol v6n qul ls bk vlbdnjoko ol bk buz6 7.::1l1 y h bk hrlnulcnjk

Lc bk jfkilc sl cdtk nbkrkflctl bk rlbknjþc qul tjlcl bk bdcijtuo ol dcok ndc bk hrlnulcnjk sjlcod lstks jcvlrskflctl prdpdrnjdckbls odcol k fkydr bdcijtuo ol

 

dcok flcdr hrlnulcnjks. Lstks hrlnulcnjks lstëc slpkrkoks lc olsol uc puctd odcol lb lsplntrd ol buz ls vjsjgbl pkrk lb ded aufkcd k ucds bulid k hrlnulcnjks fës kbtk cd slrë vjsjgbl k sjfpbl vjstk ndfd bk buz ubtrkvjdbltk, bds rkyds x, bds rkyds ikffk… _kfgjêc sl puod vlr qul bk hrlnulcnjk qul tlcik bk buz sl rllek lc lb lsplntrd vjsjgbl ndc uc ndbdr tlcorë uc rded nbkrd (jchrkrrded) y lstl sl sl jrë dsnurlnjlcod dsnurlnjlcod fjlctrks fkydr hrlnulcnjk tlcik.

Lclriæk. ]krk kbiucks nulstjdcls ls ndcvlcjlctl ndcsjolrkr bk rkojknjþc lblntrdfkicêtjnk olsol uc puctd ol vjstk ndrpusnubkr odcol bk buz ndfd sj sl trktksl ol uc tdrrlctl ol pkrtænubks sjc nkrik nkrik y  y sjc fksk fksk bbkfkoks  bbkfkoks hdtdcls , nkpknls ol trkcspdrtkr tdoks

 

bks hdrfks ol rkojknjþc lblntrdfkicêtjnk. Lc lstl nksd ksdnjkfds uck dcok

lblntrdfkicêtjnk ol hrlnulcnjk v ndc uc hdtþc, qul ls uck pkrtænubk ndc nkrik nlrd y fksk nlrd nuyk lclriæk lstë okok pdr5

a ls bk ndcstkctl ol pbkcn` 68.878l->?

Nukcod uck fdbênubk ojsfjcuyl su vlbdnjoko ol rdtknjþc, bk lclriæk qul sl bjglrk ls plqulûk y bk rkojknjþc ksdnjkok lstë lc lb jchrkrrded. Ol dtrk pkrtl, sl rlbktjvkflctl bjglrkc nkctjokols ol lclriæk rlbktjvkflctl irkcols nukcod uc cõnbld ktþfjnd pksk ol uc lstkod ol lclriæk lblvkod k dtrd ol lclriæk jchlrjdr, y bk rkojknjþc ksdnjkok ls ikffk d x. ]krtjlcod ol lstl nrjtlrjd nrjtlrjd tkfgjêc pdolfds olnjr qul ls rkzdckgbl qul bk lclriæk rkojkctl lfjtjok pdr dgeltds nkbjlctls tjlcok aknjk bdcijtuols ol dcok fës ndrtks hdtdcls ndc fkydr lclriæk k flojok qul kuflctk bk tlfplrkturk olb nulrpd hlcþflcd ol bk lfjsjþc ol lclriæk rkojkctl d hdtdcls nukcod uc sjstlfk fdblnubkr d ktþfjnd pksk ol uc lstkod lblvkod ol lclriæk k dtrd fës gked. ]dr lb ndctrkrjd lb hlcþflcd ol bk kgsdrnjþc dnurrl nukcod bk kojnjþc ol lclriæk rkojkctl k uc sjstlfk fdblnubkr fdblnubkr d ktþfjnd aknl qul lb sjstlfk pksl k uc lstkod fës lblvkod ol lclriæk. lstd dnurrl nukcod bk lclriæk rkojkctl jcnjol sdgrl uck suplrnjl sþbjok bd qul prdvdnk qul su tlfplrkturk sl lblvl

KG^DWNJÞC Z LFJ^JÞC LC ^\]LWHJNJL^ ^ÞBJOK^. Zk ndcdnjlcod lb ndcnlptd ndcnlptd ol lstds hlcþflcds ol kgsdrnjþc y lfjsjþc ol lclriæk lc uck vjsjþc ktþfjnk. Kadrk vlrlfds lstds hlcþflcds olsol lb puctd ol vjstk ol nulrpds fknrdsnþpjnds, plrd lchdnkods k sþbjods dpknds.

 

Nukcod bk rkojknjþc jcnjol sdgrl bk suplrnjl ol uc sþbjod dpknd lstk ls kgsdrgjok d rllekok. ^l bl olcdfjck kgsdrgkcnjk k bk hrknnjþc ol bk rkojknjþc jcnjolctl qul sl kgsdrgl tkfgjêc sl bk bbkfk ‒ndlnjlctl ol kgsdrnjþc‖ y sl rlprlslctk ndc lb sæfgdbd  k. _kfgjêc bk hrknnjþc ol bk rkojknjþc jcnjolctl ndc hrlnulcnjk v qul sl kgsdrgl sl olsjick pdr k, Ls olnjr k y k, sl olclc ndfd5

Odcol5

q(k)ov y q(;)o v sdc bk rkojknjþc kgsdrgjok l jcnjolctl pdr ucjoko ol ërlk y ucjoko ol tjlfpd lc lb jctlrvkbd ol hrlnulcnjks ndfprlcojod lctrl u y u + ov. ]krk nukbqujlr nulrpd rlkb, k, ls flcdr qul bk ucjoko y vkræk ndcsjolrkgblflctl ndc bk hrlnulcnjk. \c nulrpd ajpdtêtjnd pkrk lb nukb kvls uck ndcstkctl, flcdr qul bk ucjoko, sdgrl tdod lb jctlrvkbd ol hrlnulcnjks y k tdoks bks tlfplrkturks sl olcdfjck nulrpd irjs.

\c nulrpd irjs sjlfprl kgsdrgl Jk fjsfk hrknnjþc ol bk rkojknjþc jcnjolctl, nukbqujlrk qul slk bk hrlnulcnjk

Nulrpd clird ls uc nksd bæfjtl olb nulrpd irjs ls nukcod k, 6 ; pkrk tdoks bks hrlnulcnjks y tdoks bks tlfplrkturks