Study On Waterfront Landscape Design Based On Hydrodynamic Numerical Simulation

Waterfront landscape design is an important field of urban construction and development.However,the coastal ecological management of Urban Landscape Lakes is severely separated from the coastal landscape design,which makes the coastal space seriously damaged by adverse human activities.Governing the water-bank environment of urban landscape lakes,improving the design methods of urban water-bank landscape,and improving the scientificity of the construction of water-bank space have become the important and difficult contents of current water-bank landscape design.By constructing a two-dimensional plane hydrodynamic model,the hydrodynamic characteristics of the lake can be accurately simulated.Based on the hydrodynamic characteristics of the lake body,combined with the coastline factors,habitat factors and water body factors,the design strategies of optimizing the form of bank revetment,improving the plant habitat and optimizing the spatial layout of the water bank are put forward,which can guide the design of the waterfront landscape of Urban Landscape Lakes scientifically.In order to further study the impact of lake morphology on coastal landscape,unstructured triangular mesh was selected and combined with the actual situation of urban landscape lakes,the scheme of lake bottom topography and coastline morphology was designed.Combining with the actual situation,the flow field simulation results of different lake morphological schemes are analyzed to determine whether the flow field of the lake is uniform and reasonable,which is conducive to maintaining the ecological health of the shore and improving the spatial landscape of the shore.The more reasonable the flow field is,the more optimal the lake morphology is.As an example,taking Haizhu Lake as an example,a shallow-water landscape lake in Guangzhou City,as well as natural conditions such as Lake topography and wind field,a two-dimensional MIKE21 FM plane hydrodynamic model is constructed by using unstructured triangular grids suitable for complex boundary conditions to simulate the current conditions of Haizhu Lake.Then,according to the simulation results,the revetment forms,aquatic plants and lake morphology of Haizhu Lake are optimized.Especially in the aspect of lake morphology optimization,three typical lake morphology schemes are designed,and the hydrodynamic characteristics of the three schemes are simulated and analyzed.Finally,the strategies for the design of waterfront landscape are obtained.