Urban Microclimate Simulation Based On ENVI-met

As the urbanization continues to advance,the impact of microclimate on the urban thermal environment becomes more and more obvious.The quality of the local microclimate environment largely determines that of people's life,and the microclimate begins to highlight its importance.The historical block environment is an important part of the urban environment and the human settlement environment.It is of great significance studying the microclimate of the historical block to improve the urban climate environment and the human settlement environment.The numerical simulation of the microclimate of the historical block is conducted by ENVI-met software from micro-climate background interpretation to microclimate theory and dynamic analysis at home and abroad,to microclimate case simulation analysis.the research is divided into six parts.The first part is to interpret the background of the subject by consulting the materials.From the microclimate to the orientation of national policy.this part understands the current status and significance of microclimate,analyzes the related concepts involved,and summarize the ideas and methods of research.The second part explains the domestic and international microclimate theory,dynamic research and microclimate case simulation of historical blocks at home and abroad.The external space research theory of Professor Cohen Stemus of Cambridge University is leading in the field of urban microclimate research.The microclimate research ideas and methods play a great guiding role in this paper.The third part is to conduct an on-the-spot investigation on the historical district of Shengjin Tower in Nanchang.The field measurement,research,questionnaires and other methods help to obtain the microclimate data of the historical district of Shengjin Tower and the status of the block so as to guide the microclimate case simulation.The fourth part summarizes the factors affecting the microclimate environment through the review of microclimate theory and simulation research,and forms the theoretical framework of this paper and the model framework of the microclimatenumerical simulation process.The fifth part is the microclimate multi-factor impact factor system,which analyzes the relationship between spatial features such as spatial shape,spatial development intensity,geometric structure parameters,underlying surface material and microclimate.In the sixth part,through the micro-climate multi-factor impact factor system,the background information is established based on the actual regional case simulation.The experimental scheme simulation is set up.The measured data are summarized and collated,and the simulation results are compared and analyzed to obtainthe simulation accuracy and the relevance between microclimate spatial multi-factor factors and microclimate index.There is a certain correlation between the microclimate parameters and the geometric parameters of the outer space of different regional groups;the microclimate variables have a certain correlation with the material of the underlying surface.This thesis studies the microclimate of historical blocks through ENVI-met software,and concludes that there is a relationship between regional spatial multi-factor factors and microclimate environment,aiming to provide some guidance for microclimate environment and local microclimate improvement in historical blocks,to revitalize the historic district.