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Четверг 25 октября 2018 г.<br>
Теоретический семинар в ИФП, 11:30.<br>
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Виктор Доценко (Universite Jussieu, Paris)<br>
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<font size="+1"><b>Velocity distribution functions and intermittency
in one-dimensional randomly forced Burgers turbulence</b></font><br>
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The problem of one-dimensional randomly forced Burgers turbulence is
considered in terms of (1+1) directed polymers. In the limit of
strong turbulence (which corresponds to the zero temperature limit
for the directed polymer system) using the replica technique a
general explicit expression for the joint distribution function of
two velocities separated by a finite distance is derived. In
particular, it is shown that at length scales much smaller than the
injection length of the Burgers random force the moments of the
velocity increment exhibit typical strong intermittency behavior.<br>
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J.Stat.Mech., 083302 (2018); arXiv:1804.08294<br>
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