000014634 001__ 14634
000014634 005__ 20161115100157.0
000014634 04107 $$aeng
000014634 046__ $$k2016-08-21
000014634 100__ $$aMizerski, Krzysztof
000014634 24500 $$aNew turbulent large-scale magnetic dynamo mechanism

000014634 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014634 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014634 506__ $$arestricted
000014634 520__ $$2eng$$aAmong the large scale magnetic dynamo mechanisms occurring in turbulent MHD flows in many astrophysical objects such as stars, planets, accretions disks, galaxies etc. the so-called α-effect based on nonlinear interactions between the velocity and the magnetic fields of the fluctuating turbulent components is without a doubt the most commonly invoked. The large scale electromotive force, whcih is responsible for generation of the mean magnetic field is calculated as the cross-product of the wave-like solutions of the linearised equations for the velocity u′ and magnetic field b′ of the same mode, i.e. with the same complex growth rate. Here it is demonstrated that there exists a mechanism for mean electromotive force generation based on interactions of turbulent small scale fields of different modes, which does not even require the fluid’s resistivity to operate and which is potentially very effective.

000014634 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014634 653__ $$a

000014634 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014634 720__ $$aMizerski, Krzysztof
000014634 8560_ $$ffischerc@itam.cas.cz
000014634 8564_ $$s64777$$uhttps://invenio.itam.cas.cz/record/14634/files/TS.FM09-4.05.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1127, code TS.FM09-4.05
.
000014634 962__ $$r13812
000014634 980__ $$aPAPER