Large eddy simulation of atmospheric boundary-layer flows under time-varying upstream inflows
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 22_Publication in policy or professional journal
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 691-697 |
| Journal / Publication | Jisuan Wuli/Chinese Journal of Computational Physics |
| Volume | 33 |
| Issue number | 6 |
| Publication status | Published - 25 Nov 2016 |
Link(s)
Abstract
In large eddy simulations (LES), a flat ground model and rough wedge ground models with different wedge heights were adopted to investigate near-surface wind field characteristics under condition of time-varying upstream inflows. In both flat ground model and rough wedge ground models, simulated results show that there is downdraft in peak period of gusty wind and updraft in valley period, respectively. Intensity of downdraft/updraft flows are related to ground roughness in upwind areas and amplitude of inflows. It follows that wind velocity and direction in atmospheric boundary layer always change over time in time-varying upstream inflows, which enhances transportation of mass and energy in actual atmospheric boundary layer.
Research Area(s)
- Atmospheric boundary layer, Gusty wind, Large eddy simulation, Rough ground boundary layer, Time-varying inflow
Citation Format(s)
Large eddy simulation of atmospheric boundary-layer flows under time-varying upstream inflows. / Li, Weijun; Zhang, Yunwei; Gu, Zhaolin et al.
In: Jisuan Wuli/Chinese Journal of Computational Physics, Vol. 33, No. 6, 25.11.2016, p. 691-697.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 22_Publication in policy or professional journal
