Anomalous Scaling and Refined Similarity of an Active Scalar in a Model of Homogeneous Turbulent Convection

Details Anomalous Scaling and Refined Similarity of an Active Scalar in a Model of Homogeneous Turbulent Convection Anomalous Scaling and Refined Similarity of an Active Scalar in a Model of Homogeneous Turbulent Convection

2007-08-02

arxiv.org/abs/0708.0312v2

Nonlinear Sciences

Chaotic Dynamics

Scientific paper

10.1103/PhysRevE.77.015303

Anomalous scaling in the statistics of an active scalar in homogeneous turbulent convection is studied using a dynamical shell model. We extend refined similarity ideas for homogeneous and isotropic turbulence to homogeneous turbulent convection and attribute the origin of the anomalous scaling to variations of the entropy transfer rate. We verify the consequences and thus the validity of our hypothesis by showing that the conditional statistics of the active scalar and the velocity at fixed values of entropy transfer rate are not anomalous but have simple scaling with exponents given by dimensional considerations, and that the intermittency corrections are given by the scaling exponents of the moments of the entropy transfer rate.

Affiliated with

Also associated with

No associations

Rating

Anomalous Scaling and Refined Similarity of an Active Scalar in a Model of Homogeneous Turbulent Convection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Anomalous Scaling and Refined Similarity of an Active Scalar in a Model of Homogeneous Turbulent Convection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous Scaling and Refined Similarity of an Active Scalar in a Model of Homogeneous Turbulent Convection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-245013