Research output: Contribution to journal › Article › peer-review
Calculation of the anomalous exponents in the rapid-change model of passive scalar advection to order [formula presented]. / Adzhemyan, L. Ts; Antonov, N. V.; Barinov, V. A.; Kabrits, Yu S.; Vasil’ev, A. N.
In: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 64, No. 5, 2001, p. 28.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Calculation of the anomalous exponents in the rapid-change model of passive scalar advection to order [formula presented]
AU - Adzhemyan, L. Ts
AU - Antonov, N. V.
AU - Barinov, V. A.
AU - Kabrits, Yu S.
AU - Vasil’ev, A. N.
PY - 2001
Y1 - 2001
N2 - The field theoretic renormalization group and operator product expansion are applied to the model of a passive scalar advected by the Gaussian velocity field with zero mean and correlation function [formula presented] Inertial-range anomalous exponents, identified with the critical dimensions of various scalar and tensor composite operators constructed of the scalar gradients, are calculated within the [formula presented] expansion to order [formula presented] (three-loop approximation), including the exponents in anisotropic sectors. The main goal of the paper is to give the complete derivation of this third-order result, and to present and explain in detail the corresponding calculational techniques. The character and convergence properties of the [formula presented] expansion are discussed, the improved “inverse” [formula presented] expansion is proposed, and the comparison with the existing nonperturbative results is given.
AB - The field theoretic renormalization group and operator product expansion are applied to the model of a passive scalar advected by the Gaussian velocity field with zero mean and correlation function [formula presented] Inertial-range anomalous exponents, identified with the critical dimensions of various scalar and tensor composite operators constructed of the scalar gradients, are calculated within the [formula presented] expansion to order [formula presented] (three-loop approximation), including the exponents in anisotropic sectors. The main goal of the paper is to give the complete derivation of this third-order result, and to present and explain in detail the corresponding calculational techniques. The character and convergence properties of the [formula presented] expansion are discussed, the improved “inverse” [formula presented] expansion is proposed, and the comparison with the existing nonperturbative results is given.
UR - http://www.scopus.com/inward/record.url?scp=84870312170&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.64.056306
DO - 10.1103/PhysRevE.64.056306
M3 - Article
AN - SCOPUS:84870312170
VL - 64
SP - 28
JO - Physical Review E
JF - Physical Review E
SN - 1539-3755
IS - 5
ER -
ID: 86532238