Abstract
Photon Homodyne Spectroscopy (HCS) and Laser Doppler Velocimetry (LDV) have been used to study turbulent velocity fluctuations V(R) associated with eddies of size R. For small R both types of measurement were consistent with a model in which the active regions of turbulence He on a fractal of dimension D, with D increasing from ~ 2 to ~ 3 as the Reynolds number (Re) increases above some threshold value. At larger eddy sizes, the LDV measurements show a different scaling of the velocity fluctuations. We associate these larger eddies with the energy reservoir that feeds the inertial cascade.
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© 1991 Springer Science+Business Media Dordrecht
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Pak, H.K., Goldburg, W.I., Tong, P. (1991). Scaling Laws in Weak Turbulence. In: Riste, T., Sherrington, D. (eds) Spontaneous Formation of Space-Time Structures and Criticality. NATO ASI Series, vol 349. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3508-5_27
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DOI: https://doi.org/10.1007/978-94-011-3508-5_27
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