TITLE:
Novel Power Law of Turbulent Spectrum
AUTHORS:
Chusak Osonphasop, Takeo R. M. Nakagawa
KEYWORDS:
Energy Spectrum, Kinetic Theory, Tidal Current, Inertial Sub-Range, Turbulence Measurement, Power Law
JOURNAL NAME:
Open Journal of Fluid Dynamics,
Vol.4 No.2,
May
26,
2014
ABSTRACT: This paper is concerned with novel power law of turbulent energy spectrum and the relevant experiment in tidal current. The power law in the inertial sub-range has been proposed in such a way that the power of the one-dimensional turbulent energy spectrum varies from 0 to －2 approximately, but it is accompanying the small oscillation with increasing the wave number. The well-known Kolmogorov －5/3 power law is merely one facet, to appear within the present proposed novel power law. The turbulent energy spectra (Su, Sv, Sw) in x-, y-and z-directions, respectively oscillate with the wave number. It is found that the turbulent in the tidal currents is three dimensional, and the intermittence of momentum transport is a predominant and characteristic feature in tidal current.