Experimental measurement of acceleration correlations and pressure structure functions in high Reynolds number turbulence

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dc.creatorXu, Haitao
dc.creatorOuellette, Nicholas T.
dc.creatorVincenzi, Dario
dc.creatorBodenschatz, Eberhard
dc.date2007-08-29
dc.date.accessioned2026-07-07T08:51:31Z
dc.date.available2026-07-07T08:51:31Z
dc.descriptionWe present measurements of fluid particle accelerations in turbulent water flows between counter-rotating disks using three-dimensional Lagrangian particle tracking. By simultaneously following multiple particles with sub-Kolmogorov-time-scale temporal resolution, we measured the spatial correlation of fluid particle acceleration at Taylor microscale Reynolds numbers between 200 and 690. We also obtained indirect, non-intrusive measurements of the Eulerian pressure structure functions by integrating the acceleration correlations. Our experimental data provide strong support to the theoretical predictions of the acceleration correlations and the pressure structure function in isotropic high Reynolds number turbulence by Obukhov and Yaglom in 1951. The measured pressure structure functions display K41 scaling in the inertial range.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0708.3930
dc.identifierhttp://arxiv.org/abs/0708.3930
dc.identifierPhys. Rev. Lett. 99, 204501 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.204501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/144963
dc.subjectFluid Dynamics
dc.titleExperimental measurement of acceleration correlations and pressure structure functions in high Reynolds number turbulence
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