The scaling of straining motions in homogeneous isotropic turbulence

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Anomalous scaling in homogeneous isotropic turbulence

The anomalous scaling exponents ζn of the longitudinal structure functions Sn for homogeneous isotropic turbulence are derived from the Navier-Stokes equations by using field theoretic methods to develop a low energy approximation in which the Kolmogorov theory is shown to act effectively as a mean field theory. The corrections to the Kolmogorov exponents are expressed in terms of the anomalous...

متن کامل

Spinodal decomposition in homogeneous and isotropic turbulence.

We study the competition between domain coarsening in a symmetric binary mixture below critical temperature and turbulent fluctuations. We find that the coarsening process is arrested in the presence of turbulence. The physics of the process shares remarkable similarities with the behavior of diluted turbulent emulsions and the arrest length scale can be estimated with an argument similar to th...

متن کامل

Droplet size distribution in homogeneous isotropic turbulence

• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version ...

متن کامل

Scaling of acceleration in locally isotropic turbulence

where Dui/Dt denotes the time derivative following the motion of the fluid particle, and ui is velocity. Here, ν is the kinematic viscosity, ∇x ≡ ∂xn∂xn is the Laplacian operator, ∂ denotes differentiation with respect to the subscript variable, summation is implied by repeated indices, p is pressure divided by fluid density; density is constant. ε is energy dissipation rate per unit mass of fl...

متن کامل

Streamlines in stationary homogeneous isotropic turbulence and fractal-generated turbulence

We compare streamline statistics in stationary homogeneous isotropic turbulence and in turbulence generated by a fractal square grid. We examine streamline segments characterised by the velocity difference u D and the distance l between extremum points. We find close agreement between the stationary homogeneous isotropic turbulence and the decay region of the fractal-generated turbulence as wel...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Fluid Mechanics

سال: 2017

ISSN: 0022-1120,1469-7645

DOI: 10.1017/jfm.2017.538