Analysis of pressure fluctuations in swirling turbulent flows

Patrice Abry , S. Fauve , P. Flandrin , C. Laroche

Turbulent flows display intermittent pressure drops associated with vorticity concentrations. Using wavelet transform, we characterize these low pressure events and study some of their statistical characteristics in a flow generated between the gap of two counter-rotating disks. We show that the mean frequency of intermittent pressure drops decreases with increasing Reynolds number.


Domaines: Articles anciens

Patrice Abry, S. Fauve, P. Flandrin, C. Laroche. Analysis of pressure fluctuations in swirling turbulent flows. Journal de Physique II, 1994, 4 (5), pp.725-733. ⟨10.1051/jp2:1994101⟩. ⟨jpa-00247995⟩