Hartmann ntws
Lub suab laminar tsis tu ncua ntawm cov kua dej tsis sib haum nrog cov yeeb nkab nrog ib qho duab plaub nyob rau hauv qhov kev txiav txim ntawm kev sib nrig sib txuas ntawm electromagnetic teb. Nws yog ib daim ntawv yooj yim ntawm magnetohydrodynamic ntws.