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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.


Energy Spectrum, Kinetic Theory, Tidal Current, Inertial Sub-Range, Turbulence Measurement, Power Law

Cite this paper

Osonphasop, C. and Nakagawa, T. 2014 Novel Power Law of Turbulent Spectrum. Open Journal of Fluid Dynamics, 4, 140-153. doi: 10.4236-ojfd.2014.42013.

Autor: Chusak Osonphasop, Takeo R. M. Nakagawa



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