Publication Date:
2011-12-14
Description:
Using the field theory renormalization group technique in the two-loop approximation, we study the influence of helicity (spatial parity violation) on the turbulent Prandtl number in the model of a scalar field passively advected by the helical turbulent environment given by the stochastic Navier-Stokes equation with a self-similar Gaussian random stirring force δ-correlated in time with the correlator proportional to k 4 −d− 2 ɛ . We briefly discuss the influence of helicity on the stability of the corresponding scaling regime. We show that the presence of helicity increases the value of the turbulent Prandtl number up to 50% of its nonhelical value. Content Type Journal Article Pages 1573-1582 DOI 10.1007/s11232-011-0134-7 Authors E. Jurčišinová, Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovakia M. Jurčišin, Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovakia R. Remecký, Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovakia Journal Theoretical and Mathematical Physics Online ISSN 1573-9333 Print ISSN 0040-5779 Journal Volume Volume 169 Journal Issue Volume 169, Number 2
Print ISSN:
0040-5779
Topics:
Mathematics
,
Physics
