期刊
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
卷 131, 期 -, 页码 46-58出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jweia.2014.05.001
关键词
Field measurements; Typhoon boundary layer; Wind tunnel test; WRF simulation
资金
- RGC General Research Fund
- HKSAR [9041338, DAG11EG06]
- Hong Kong Observatory
To investigate the applicability and limitations of both physical (wind tunnel test) and numerical (weather prediction) simulations of the atmospheric boundary layer, field measurements from a Doppler SODAR and a wind-profiler were combined to serve as validation criteria when comparing the results from a numerical simulation conducted by the Weather Research and Forecast model (WRF) and from wind tunnel testing. The comparisons focused on the simulation of the typhoon boundary layer, and revealed that a major drawback of wind tunnel testing is the use of an unrealistic approaching wind profile. As a result, the wind tunnel test results should only be considered valid when the measured wind profile is influenced predominantly by the underlying terrain. Meanwhile, the relatively coarse resolution of the underlying terrain model used in the numerical weather prediction system may lead to an inaccurate mean wind speed profile at lower altitudes, especially when the winds are coming from the land fetch. (C) 2014 Elsevier Ltd. All rights reserved.
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