Fields of Lagrangian (T L) and Eulerian (T E ) time scales of the turbulence within a regular array of two-dimensional obstacles of unit aspect ratio have been determined by means of a water-channel experiment reproducing the atmospheric boundary layer in neutral conditions. It has been found that there is a strong spatial inhomogeneity both of the scales and of their ratio, β = T L/T E . The results can provide useful information on numerical modelling of tracer dispersion in urban areas.
On the Lagrangian and Eulerian Time Scales of Turbulence Within a Two-Dimensional Array of Obstacles / Di Bernardino, A.; Monti, P.; Leuzzi, G.; Querzoli, G.. - In: BOUNDARY-LAYER METEOROLOGY. - ISSN 1573-1472. - 184:3(2022), pp. 375-379. [10.1007/s10546-022-00717-6]
On the Lagrangian and Eulerian Time Scales of Turbulence Within a Two-Dimensional Array of Obstacles
Di Bernardino A.;Monti P.
;Leuzzi G.;
2022
Abstract
Fields of Lagrangian (T L) and Eulerian (T E ) time scales of the turbulence within a regular array of two-dimensional obstacles of unit aspect ratio have been determined by means of a water-channel experiment reproducing the atmospheric boundary layer in neutral conditions. It has been found that there is a strong spatial inhomogeneity both of the scales and of their ratio, β = T L/T E . The results can provide useful information on numerical modelling of tracer dispersion in urban areas.| File | Dimensione | Formato | |
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