Numerical simulation of internal boundary-layer development and comparison with atmospheric data |
| |
Authors: | János Józsa Barbara Milici Enrico Napoli |
| |
Institution: | (1) Department of Hydraulic and Water Resources Engineering, Budapest University of Technology and Economics, Budapest, Hungary;(2) Department of Hydraulic Engineering and Environmental Applications, University of Palermo, Viale delle Scienze, Palermo, 90128, Italy |
| |
Abstract: | A finite-volume numerical model is employed to investigate the adaptation of the atmospheric boundary layer to a change in
the underlying surface roughness, such as that existing in the transition from land to the free surface of a water body. Numerical
results are validated by comparison with neutral stratification atmospheric data and compared with the internal boundary-layer
(IBL) heights computed using a number of existing empirical formulae. The numerical analysis allows an extension of the fetch
range in which the existing formulae, calibrated only by comparison with short fetch data, may be applied. An argument is
offered that the spatial variability of the water surface roughness should be also taken into account for the IBL development
over the surface of a water body. |
| |
Keywords: | Finite volume numerical model Internal boundary layer Roughness change |
本文献已被 SpringerLink 等数据库收录! |
|