| 摘要: |
| 表面流人工湿地作为一种典型的城市绿色基础设
施，在风景园林设计中的应用场景不断增加，但当前其设计过
程中存在水体净化效能与空间形态营造较难兼顾的技术瓶颈。
从学科交叉融合的角度，以江苏省太仓市某人工湿地净化工
程中的表流湿地为例，利用Delft3D软件，通过模拟表流湿地
12个方案中“岛屿”微地形或挡墙等不同要素组合下的水力效
率(λ)和流速“死区”分布，分析不同方案的整体净化效能高
低与内部水动力异质性特征，从而得到影响表流湿地水力特征
与水体净化效能的关键空间形态要素，并提出相应的表流湿地
空间形态优化策略，为表流湿地的设计提供循证依据。通过数
字赋能有助于提高表流湿地实践的科学性与合理性。 |
| 关键词: 风景园林 人工湿地 表流湿地 Delft3D 数值
模拟 空间形态 水力效率 |
| DOI： |
| 投稿时间：2022-02-23修订日期：2022-09-09 |
| 基金项目: |
|
| Delft3D Hydrodynamic Numerical Simulation and Spatial and Configurational Design of Free Water Surface Constructed Wetland |
| WANG Jieqiong,WANG Rongrong,SONG Haoyang,WANG Min,BAO Ziting |
| Abstract: |
| As a typical type of urban green infrastructure, free
water surface constructed wetland (FWSCW) has an increasing
number of application scenarios in landscape design. But there is
a technical bottleneck between water purification efficiency and
spatial form building in the design process. From the perspective
of interdisciplinary integration, taking the FWSCW in a water
purification project of in Taicang City of Jiangsu Province as an
example, using Delft3D software, through simulating the hydraulic
efficiency (λ) and "dead zone" distribution of different elements
combination such as "island" finer-scaled landform or retaining wall
in 12 design schemes, the different overall purification efficiency
and internal hydrodynamic heterogeneity characteristics were
described, so as to obtain the key spatial morphological elements
affecting the hydraulic characteristics and water purification
efficiency of FWSCW. The corresponding strategies for optimizing
the spatial morphology of surface flow wetlands were proposed
to provide evidence-based basis for the design of FWSCW.
Digital empowerment was helpful to improve the scientificity and
rationality of surface flow wetland practice. |
| Key words: landscape architecture constructed wetland free water
surface constructed wetland Delft3D numerical simulation space
and configuration hydraulic efficiency |
