Study On The Suitability Of Ventilation Design In Lingnan Mountainous Gardens

Under the background of hot and humid climate in Lingnan area,the climate sensitivity and adaptability of Guangzhou are facing great challenges due to the rapid urbanization.In order to improve the comfort of living environment,Guangzhou and Lingnan area have increasing requirements for living environment.At the same time,Lingnan mountainous garden gradually formed a complete system,in which Baiyun Mountain,known as "lung of Guangzhou City",built a number of gardens in the 1960 s.These mountainous gardens use ventilation design to adapt to the hot and humid climate of Lingnan.Based on my tutor’s research foundation and my research interest,this paper studies the ventilation design strategy of Shuangxi villa in Baiyun Mountain,Guangzhou.This research has important research value and guiding significance for Lingnan mountain landscape design and wind environment design.Based on this,this paper is divided into three parts:(1)This paper collects and summarizes the relevant methods and theories of mountainous landscape and mountainous wind environment design.In view of the research status and the points to be further and supplemented in the design specifications,the wind environment evaluation standards and quantitative indicators for Shuangxi villa in Baiyun Mountain and Lingnan mountainous garden are selected.Combined with the research foundation of Shuangxi villa,this paper constructs the research framework.(2)The wind environment of Shuangxi villa is measured on site.Combined with the project background of Shuangxi villa and the designer’s ideas,this paper summarizes the design method of conforming to the terrain.On this basis,the paper makes a preliminary analysis and evaluation of the summer monsoon environment system,and puts forward the ventilation design strategy and corresponding ventilation design elements of Shuangxi villa as follows:Through the vertical layout of the platform to deal with the height difference,build the platform terrain into windward side;Through the height width ratio of the cross section of the valley,the valley is built along the stream to form a ventilation corridor;Through the elevation of the building site to build according to the mountain to create a building ventilation environment.(3)The CFD-PHOENICS software is used to simulate the ventilation design strategy of Shuangxi villa.After verifying the software with the measured data,the proposed ventilation design strategy of Shuangxi villa is verified with the typical meteorological day in Guangzhou in summer as the background data.And the suitability of the corresponding ventilation design elements is analyzed.The innovations of this paper are as follows:Based on the measurement and numerical simulation,it forward the ventilation design strategy of Shuangxi Villa,and analyzes the suitability of the corresponding elements;It provides data and practical reference for relevant design specifications of medium slope and steep slope.It is hoped that this paper can provide research ideas for Lingnan mountainous landscape design and microclimate design,and provide data support and guidance for the improvement of relevant norms.