Engineering arrangement method for optimizing channel convergence area based on particle tracking
A technology of particle tracking and arrangement method, applied in design optimization/simulation, image data processing, 3D modeling, etc., which can solve the problem of only given plane or cross-section flow velocity distribution, long calculation time, lateral flow velocity in navigable area and return flow velocity. Exceeding the standard and other problems, to achieve the effect of clear and clear water flow route, flow pattern and flow rate distribution image, and flow pattern and flow rate distribution intuitive.
Pending Publication Date: 2022-04-29
安徽省引江济淮集团有限公司 +2
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Problems solved by technology
For the physical model test method, the physical model is a reduced version of the prototype river. The physical concept is clear and intuitive, so it is widely used, but it often needs to occupy a huge site, consume a lot of equipment, materials and manpower, and the test period is long. In addition to a specific problem studied by the model test, changing the problem or boundary conditions often requires complete or partial demolition, and the test cost is expensive.
For numerical model simulation methods, two-dimensional and three-dimensional hydrodynamic models are generally used, which can better simulate the plane flow of water flow, but for complex structures, only the plane or cross-sectional flow velocity distribution can be given, which cannot better reflect the water flow movement in a specific area It is difficult to accurately analyze the causes of the excessive lateral flow velocity and return flow velocity in the navigable area. The arrangement of energy dissipation and diversion engineering facilities is not very targeted, and the layout and scale of energy dissipation and diversion engineering facilities need to be continuously adjusted. Determine the optimal combination of energy dissipation and diversion engineering facilities through a large number of trial calculations
Among them, the calculation of the 3D model depends on the number and quality of the grids. The large-scale 3D numerical simulation of the confluence requires a large number of grids, and the calculation time of each trial calculation condition is long, and a large amount of trial calculation work requires a lot of time and cost.
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[0023] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:
[0024] Such as figure 1 As shown in , an engineering layout method based on particle tracking to optimize the waterway confluence area, including the following steps:
[0025] Step S1, find out the source and composition of the water flow in the gate area of the confluence;
[0026] Step S2: building a three-dimensional water flow simulation model;
[0027] Step S3, constructing a particle tracking convection-diffusion model;
[0028] Step S4, ascertain the law of water flow movement, and track the source of regional water flow;
[0029] Step S5: Arranging energy dissipation and diversion engineering facilities.
[0030] specific:
[0031] S1: Find out the source of water flow in the gate area of the confluence, and determine the water flow combination plan
[0032] Perform frequency sorting on historical flood data, analyze water flow sources...
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The invention relates to an engineering arrangement method for optimizing a channel confluence area based on particle tracking, and belongs to the technical field of inland river navigation and discharge flow energy dissipation. Water flow sources in a confluence port gate area are found out, and a water flow combination scheme is formulated; a three-dimensional water flow simulation model is constructed, and the accuracy and applicability of the model are ensured; constructing a particle convection-diffusion model, and setting special boundary conditions; revealing a water flow movement rule and ascertaining a flow velocity distribution reason; and arranging energy dissipation and diversion engineering facilities based on a water flow movement rule. Accurate simulation of water flow movement processes in different areas under different water flow combination working conditions is realized, the water flow movement route is clear and definite, and the flow state and flow velocity distribution are vivid and visual; the interaction between the energy dissipation and diversion facility and the water flow is obvious, the position and scale of the energy dissipation and diversion project are convenient to optimize, a better project combination is achieved, the calculation efficiency is improved, and the project investment is saved.
Description
technical field [0001] The invention relates to the technical field of inland river navigation and energy dissipation, in particular to the technical field of an engineering layout method for an optimized waterway confluence area based on particle tracking. Background technique [0002] For inland river navigation, water discharge waves and bubble swirls are prone to occur in the sub-confluence of the channel, the approach channel of the ship lock, and the entrance area, which will lead to adverse water flow conditions such as excessive lateral flow velocity and large-scale backflow in the navigation area. In order to eliminate the lateral flow velocity In order to ensure the safety of navigation, it is necessary to set up energy dissipation or diversion facilities to reduce the flow velocity of water flow and improve the flow state of the water flow. [0003] At present, the layout and scale of energy dissipation and diversion facilities are generally determined by physic...
Claims
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IPC IPC(8): G06F30/13G06F30/25G06T17/00G06F113/08
CPCG06F30/13G06T17/00G06F30/25G06F2113/08
Inventor黄明明贲鹏李东旭丁美松
Owner安徽省引江济淮集团有限公司