## 1 Introduction
\begin{table}
\begin{tabular}{p{56.9 pt} p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline \hline
**Countries and Regions** & **Researchers** & **Structure Type** & **Research Content and Method** \\ \hline \multirow{4}{*}{China} & [PERSON] et al. [6] & Wood & Used Computational Fluid Dynamics (CFD) to evaluate the impact of wind on ancient wooden buildings and predict structural responses. \\ \cline{2-4}  & [PERSON] et al. [7] & Wood & Used wind tunnel experiments to demonstrate that artificial plants are a non-destructive method that can reduce wind loads and damage to wooden towers. \\ \hline \multirow{2}{*}{Japan} & [PERSON] et al. [8] & Wood & Focused on the wind resistance of traditional wooden pagodas and analyzed their dynamic response behavior during typhoons using long-term wind monitoring records. \\ \hline \multirow{2}{*}{South Korea} & [PERSON] et al. [9] & Brick–wood & Used CFD and geographic information systems (GIS) to analyze the interference effects of airflow separation and vortices in high-rise buildings on urban historical buildings. \\ \hline \multirow{2}{*}{Philippines} & [PERSON] et al. [10] & Wooden structure and iron sheet roof & Evaluated the damage of typhoons to the roofs of historical buildings and proposed a simulation-based roof vulnerability analysis and risk assessment method. \\ \hline \multirow{2}{*}{Madagascar} & [PERSON] et al. [12] & Wood & Tested the connection strength of traditional wooden roof components and developed a vulnerability curve to assess the risk of damage. \\ \hline \multirow{2}{*}{United States} & [PERSON]. [13] & Brick–wood & Assessed the vulnerability of historical buildings and proposed renovation methods to mitigate hurricane damage. \\ \hline \multirow{2}{*}{Iranian} & [PERSON] et al. [14] & Brick & Used CFD to compare roof wind pressure coefficients and determine the most suitable traditional dome form for windy areas. \\ \hline \multirow{2}{*}{British} & [PERSON] et al. [15] & Steel & Used finite element method to study the failure mode of bridges under wind load and evaluate the load-bearing performance of structural components. \\ \hline \multirow{2}{*}{Egyptian} & [PERSON] et al. [16] & Stone & Studied the impact of environmental wind on the degradation of historical sites and simulated wind loads on the surface of pyramids. \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Research on Wind Protection for Historical Buildings with different Structures. sound improvement and intervention strategies. However, the majority of these studies primarily address the damage inflicted by wind disasters on the historical buildings themselves, with limited exploration into the potential human-induced impairment of wind resistance performance resulting from the renovation and transformation of historical buildings. This aspect deserves greater attention and consideration. CFD simulation methods offer superior economic efficiency compared to traditional wind tunnel testing methods, with shorter experimental preparation times and lower costs. With advancements in computer technology and the optimization of turbulence models, CFD numerical simulations can now analyze complex fluid motion phenomena around building structures, yielding simulation results that closely match wind tunnel tests and on-site measurements [17]. Various CFD software packages such as Phoenics, CFX, Fluent, and Star-CCM+ have been developed and widely applied in extensive research and practical engineering projects, validating the reliability of CFD simulation methods [18]. Among these, Fluent software 2022R1 stands out for its integrated capabilities in modeling, computational setup, and solutions, which is why it was the CFD software tool used in this study. The main objective of this study was to utilize CFD simulation techniques to analyze the impact of different renovation strategies on the wind resistance performance of typical ancestral hall buildings in Guangzhou.