Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prevention and control method for silt deposition at bifurcated mouth of long-distance water conveyance project
The invention provides a prevention and control method based on long-distance water conveyance project bifurcated mouth sediment deposition. The prevention and control method comprises the following steps that 1, the basic size and working conditions of a simulated river reach are determined; 2, determining the form and size of a building at the bifurcated mouth; 3, two-dimensional numerical simulation based on ANSYS-fluent software is carried out on the working conditions of the simulated river reach; 4, performing Fluent software fluid simulation on the simulated river reach according to different conditions of the buildings at the bifurcated mouth; 5, a streamline diagram obtained through fluid simulation of Fluent software is analyzed; and step 6, obtaining a conclusion according to an analysis result of a streamline diagram obtained by fluid simulation of Fluent software. Experimental results show that the arc-shaped wing wall is arranged at a reasonable position near the bifurcated opening, distribution of a flow field near the bifurcated opening is obviously changed, the flow speed near the bifurcated opening is increased, and therefore sediment deposition is relieved; the arc-shaped wing wall is arranged at the same position near the bifurcated opening, and when the included angle between the main canal and the side canal is changed, the influence on the change of a flow field near the bifurcated opening is not obvious.
本发明提供一种基于长距离输水工程分汊口处泥沙淤积的防控方法，包括以下步骤：步骤1确定模拟河段的基本尺寸及工况；步骤2确定分汊口处建筑物的形态及尺寸；步骤3对模拟河段的工况进行基于ANSYS‑fluent软件的二维数值模拟；步骤4对模拟河段根据分汊口处建筑物的不同情况分别进行Fluent软件流体仿真模拟；步骤5对Fluent软件流体仿真模拟所得流线图进行分析；步骤6由对Fluent软件流体仿真模拟所得流线图进行分析的结果得出结论。实验结果表明，在分汊口附近合理位置设置弧形翼墙，对分汊口附近流场分布改变明显，增大分汊口附近流速，从而达到缓解泥沙淤积；在分汊口附近相同位置设置弧形翼墙，当干渠与侧渠夹角改变时，对分汊口附近流场变化影响不明显。
Prevention and control method for silt deposition at bifurcated mouth of long-distance water conveyance project
The invention provides a prevention and control method based on long-distance water conveyance project bifurcated mouth sediment deposition. The prevention and control method comprises the following steps that 1, the basic size and working conditions of a simulated river reach are determined; 2, determining the form and size of a building at the bifurcated mouth; 3, two-dimensional numerical simulation based on ANSYS-fluent software is carried out on the working conditions of the simulated river reach; 4, performing Fluent software fluid simulation on the simulated river reach according to different conditions of the buildings at the bifurcated mouth; 5, a streamline diagram obtained through fluid simulation of Fluent software is analyzed; and step 6, obtaining a conclusion according to an analysis result of a streamline diagram obtained by fluid simulation of Fluent software. Experimental results show that the arc-shaped wing wall is arranged at a reasonable position near the bifurcated opening, distribution of a flow field near the bifurcated opening is obviously changed, the flow speed near the bifurcated opening is increased, and therefore sediment deposition is relieved; the arc-shaped wing wall is arranged at the same position near the bifurcated opening, and when the included angle between the main canal and the side canal is changed, the influence on the change of a flow field near the bifurcated opening is not obvious.
本发明提供一种基于长距离输水工程分汊口处泥沙淤积的防控方法，包括以下步骤：步骤1确定模拟河段的基本尺寸及工况；步骤2确定分汊口处建筑物的形态及尺寸；步骤3对模拟河段的工况进行基于ANSYS‑fluent软件的二维数值模拟；步骤4对模拟河段根据分汊口处建筑物的不同情况分别进行Fluent软件流体仿真模拟；步骤5对Fluent软件流体仿真模拟所得流线图进行分析；步骤6由对Fluent软件流体仿真模拟所得流线图进行分析的结果得出结论。实验结果表明，在分汊口附近合理位置设置弧形翼墙，对分汊口附近流场分布改变明显，增大分汊口附近流速，从而达到缓解泥沙淤积；在分汊口附近相同位置设置弧形翼墙，当干渠与侧渠夹角改变时，对分汊口附近流场变化影响不明显。
Prevention and control method for silt deposition at bifurcated mouth of long-distance water conveyance project
一种基于长距离输水工程分汊口处泥沙淤积的防控方法
LONG YAN (Autor:in) / XU CHENG (Autor:in) / LI YOUMING (Autor:in) / FENG MENGJUAN (Autor:in) / YANG TONGXIN (Autor:in) / LIU YUXIN (Autor:in)
09.05.2023
Patent
Elektronische Ressource
Chinesisch
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