TY  - JOUR
AU  - Hsu, Shih-Ang
PY  - 2021
DA  - 2021/07/06
TI  - Measurements of Overwater Gust Factor from Near Surface to Beyond Common Hub Height: A Case Study
JO  - Journal of Energy and Power Technology
SP  - 031
VL  - 03
IS  - 03
AB  - In September 2020 Hurricane Sally affected the north central Gulf of Mexico. Making use of the anemometers data available at 4 oil rigs over the affected region, it is found that, when the atmospheric stability was near-neutral, the gust factor (G) decreases linearly with height from approximately 1.28 at 35m above the sea surface to 1.18 at 160 m. In other words, G decreases linearly at the rate around 8% per 100 m from the typical hub height to beyond common hub height. Based on the linear equation found in this study, the G extrapolated to the standard height of 10 m is approximately 1.3 which is also consistent with that measured at two buoys over the affected region. Therefore, a G of 1.3 at near surface may be useful for offshore wind energy R&D and O&M, particularly for those regions affected by tropical cyclones.
SN  - 2690-1692
UR  - https://doi.org/10.21926/jept.2103031
DO  - 10.21926/jept.2103031
ID  - Hsu2021
ER  -