Spectral Laws For The Energy Cascade In A 2-Dimensional Turbulence
Title - Alternative
Nouvo Cimento Soc. Ital. Fis. B-Gen. Phys. Relativ. Astron. Math. Phys. Methods
KINETIC-ENERGY; Physics, Multidisciplinary
We give a Von Karman-type model for the inertial transfer to develop a generalized spectral law for the inverse energy cascade in a forced two-dimensional turbulence that is in agreement with the experimental observations (Sommeria, 1986) of the inverse energy cascade in a statistically steady two-dimensional turbulence. We also demonstrate that the transfer of turbulent kinetic energy at small wave numbers can be modeled as a stationary continuous spectral cascading process. The equipartition spectrum for two-dimensional turbulence is demonstrated to be viscous in character and to differ radically from the equipartition spectrum for three-dimensional turbulence which is inviscid in character.
Nuovo Cimento Della Societa Italiana Di Fisica B-General Physics Relativity Astronomy and Mathematical Physics and Methods
Shivamoggi, B K., "Spectral Laws For The Energy Cascade In A 2-Dimensional Turbulence" (1990). Faculty Bibliography. 1212.