项目名称: 湿热地区城市多孔铺装材料动态蒸发量数学模型研究
项目编号: No.51308223
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 建筑科学
项目作者: 张玉
作者单位: 华南理工大学
项目金额: 25万元
中文摘要: 我国湿热地区具有完整的进行蒸发降温的气象要素。在蒸发过程中,科学的评估动态蒸发量是蒸发降温技术的关键问题。 由于城市多孔铺装材料的动态蒸发量受室外气象要素和材料物理性质等因素的耦合影响,其计算过程十分复杂。某一特定气候环境的实验研究与经验半经验的解析方法难以描述这一过程的物理本质。实现气候环境的可复现性以及建立合理的数学模型是准确评价城市多孔铺装材料动态蒸发量的根本出路。 为此,本项目开展以下研究:(1)城市多孔铺装材料动态蒸发过程影响因子研究;(2)城市多孔铺装材料动态蒸发量数学模型研究;(3)城市多孔铺装材料蒸发过程对热环境影响研究。通过上述研究,建立城市多孔铺装材料动态蒸发量的数学模型和实验方法,为城市热环境评价提供动态计算参数和标准测试方法。其成果对于降低城市热岛效应,改善城市热环境质量具有重要的科学意义和广阔的应用前景。
中文关键词: 多孔材料;动态蒸发量;城市热环境;;
英文摘要: In China's hot and humid areas, there are complete meteorological elements for evaporation cooling. During the evaporation process, scientific assessing the dynamic evaporation amount is a key issue of the evaporation cooling technology. Due to the comprehensive influence of the outdoor meteorological elements and physical properties of materials on the evaporation amount of urban porous pavement materials, the calculation of evaporation amount is very complicated. The experimental study in a specific environment and empirical or semi-empirical analytical method are difficult to describe the physical nature of this process. Realizing the reproducibility of climate environment and establishing a reasonable mathematical model is the fundamental way to accurately evaluate the dynamic evaporation of urban porous pavement materials. In this project, the following research contents will be carried out. 1) study on the influence factors of urban porous pavement materials' dynamic evaporation process; 2) research on the mathematical model of urban porous materials' dynamic evaporation amount; 3) research on the influences of urban porous materials' evaporation process on thermal environment. This project is helpful to establish the mathematical model and experimental method to assess the urban porous pavement materials'
英文关键词: porous materials;dynamic evaporation;urban thermal environment;;