## 5 Conclusions  
This paper presents a mesoscale CFD simulation framework to determine the reference wind pressure of sites in a complex terrain where few extreme wind speed data are available. The framework was successfully applied to investigate the wind field over the whole region of Taizhou City by establishing a mesoscale CFD model and conducting turbulence simulation. The estimated 50-year design wind speed from five reliable main stations of Taizhou was used in CFD simulation as the validation conditions. The reference wind pressure was calculated from the simulated extreme wind speed and verified for sites with a long history of meteorological records. The simulated extreme wind speed for sites without a long history of meteorological records could then be used to determine the reference wind pressure, which is the critical parameter for the wind-resistant structural design of buildings. The 50-year return period reference wind pressure results produced by this work has been adopted for practical building design in Taizhou. The novel approach developed in this study provides an effective and alternative means for the determination of the design wind pressure in sites of a complex terrain without a long history of meteorological records. Investigation, Y.W. ; Methodology, R.L. and H.L. ; Resources, X.C. ; Software, C.W. ; Supervision, M.H. ; Conceptualization and Writing--original draft, R.L. ; Writing--review & editing, H.D. and M.H. All authors have read and agreed to the published version of the manuscript. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Number** & **Station** & **Observation** & **Altitude (m)** & **\(W_{\text{10}}\) (0 kN/m\({}^{2}\))** & **\(w_{\text{10}}\) (0 kN/m\({}^{2}\))** & **\(w_{\text{11}}\) (0 kN/m\({}^{2}\))** \\  & & **Duration (Year)** & & & \\ \hline
1 & Jiaojiang District/Haimen & 19 & 3 & 0.98 & 0.40 & 0.98 \\
2 & Jiaojiang District/JiaZhi & 14 & 5 & 0.16 & 0.50 & 0.50 \\
3 & Jiaojiang District/Hongia & 51 & 5 & 0.46 & 0.47 & 0.47 \\
4 & Jiaojiang District/Zhang.an & 19 & 5.3 & 0.39 & 0.48 & 0.48 \\
5 & Wenling City/Chengdong & 14 & 185 & 0.16 & 0.77 & 0.77 \\
6 & Wenling City/Zaguo & 19 & 184 & 0.42 & 0.77 & 0.77 \\
7 & Wenling City/Raoheng & 16 & 5 & 0.07 & 0.51 & 0.51 \\
8 & Wenling City/Xinhe & 17 & 7 & 0.26 & 0.81 & 0.81 \\
9 & Yuhan District/Qinggang & 15 & 18 & 0.54 & 0.44 & 0.54 \\
10 & Yuhan District/Longxi & 9 & 48 & 0.27 & 0.37 & 0.37 \\
11 & Sammen District/Hengdu & 8 & 52 & 0.21 & 0.64 & 0.64 \\
12 & Sammen District/Pubgang & 15 & 15 & 0.60 & 0.55 & 0.60 \\
13 & Tantai District/Fux & 9 & 52 & 0.03 & 0.63 & 0.63 \\
14 & Tantai District/Jiequ & 15 & 113 & 0.25 & 0.67 & 0.67 \\
15 & Xiang District/Hengqi & 15 & 116 & 0.17 & 1.28 & 1.28 \\
16 & Xianju District/Xiage & 9 & 142 & 0.13 & 1.07 & 1.07 \\
17 & Xianju District/Qiushan & 7 & 150 & 0.08 & 1.21 & 1.21 \\ \hline \hline \end{tabular}
\end{table} 
Table 9: Comparison of the simulated design wind pressure at the 17 meteorological stations in Taizhou. **Funding:** This research was funded by the Zhejiang Provincial Natural Science Foundation with grant number LGG20E080006 in 2020 and the National Natural Science Foundation of China Youth Science Foundation Project with grant number 52009087/E0903 in 2020. **Institutional Review Board Statement:** Not applicable. **Informed Consent Statement:** Not applicable. **Data Availability Statement:** In 2021, the Housing and Urban-rural Development Bureau of Taizhou issued the design guide for housing quality improvement in Taizhou, in which the research results were included, as seen in [[http://www.zjtz.gov.cn/art/2021/11/3/art_1229190202_1659845.html](http://www.zjtz.gov.cn/art/2021/11/3/art_1229190202_1659845.html)]([http://www.zjtz.gov.cn/art/2021/11/3/art_1229190202_1659845.html](http://www.zjtz.gov.cn/art/2021/11/3/art_1229190202_1659845.html)) (accessed on 12 May 2022). **Acknowledgments:** We appreciate the Taizhou Meteorological Bureau for providing the wind speed, wind direction, and other meteorological data of 108 meteorological stations.