Impact of the Water Area Changes in Jiangnan Watery Settlement on the Thermal Comfort of Public Space——A Case Study of Tongli Ancient Town
In order to analyze the influence of waterbody shape on the microclimate perception of public space in traditional watery settlements,scenario analysis and CFD numerical simulation were combined to focus on the improvement effect of waterbody area change on thermal comfort perception.Taking the waterfront public space of Tongli Ancient Town as the research object,on the basis of the current 100%water surface,the scenarios of no water and 50%water are reconstructed,and three water body design scenarios are used as univariate experiments to simulate three water system areas.Illustration of the microclimate environment and WBGT thermal comfort distribution in early summer at 9:30,11:30 and 15:30 were under the scenarios.The physical environment simulation based on wind-heat-humidity coupling and the spatial measurement of thermal comfort are studied,and the thermal comfort improvement efficiency is introduced to measure the spatial thermal comfort of the unit area of water increments,and the overall and partial multi-scale statistics are carried out by using the moving window method.The results show that on the whole,with the increase of the area of the waterbody,the area of the comfortable zone in the surrounding public space at each time period also expands,and the change of water area has a positive effect on the thermal comfort of the space.In the process of 0-50%water area increment in the early stage,the thermal comfort improvement efficiency is higher than that in the 50-100%late stage.In this way,the role process between the increase of water area and the improvement of thermal comfort of waterfront public space in Tongli water village settlements was clarified.Put forward the wisdom of microclimate in traditional watery settlement space and the water system planning for climate adaptability.Provide the guidelines.on the microclimate optimization design.
Microclimate PerceptionThermal ComfortCFDHeat and Moisture TransferScenario Analysis
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