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Urban area water logging flood processing simulation method based on CD-TIN

A process simulation, urban technology, used in special data processing applications, instruments, electrical digital data processing, etc.

Inactive Publication Date: 2013-05-22
吴立新 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention patent solves the problem of waterlogging and submersion simulation based on CD-TIN urban surface

Method used

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  • Urban area water logging flood processing simulation method based on CD-TIN
  • Urban area water logging flood processing simulation method based on CD-TIN
  • Urban area water logging flood processing simulation method based on CD-TIN

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Embodiment Construction

[0051] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with examples of implementation and accompanying drawings. The content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the patent of the present invention. Part of the formulas and parameters in the following examples are from published materials, and the method and protective effect of the present invention should not be limited by the replacement and change of formulas and parameters.

[0052] Take the main campus of Beijing Normal University as an example (such as image 3 shown), illustrate the CD-TIN-based urban waterlogging submersion process rapid simulation method of the present invention, for ease of reference and understanding, the formula symbol list in the present embodiment is as follows:

[0053]

[0054]

[0055] The specific implementation steps of this em...

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Abstract

The invention discloses an urban area water logging flood processing simulation method based on a CD-TIN. The urban area water logging flood processing simulation method based on the CD-TIN takes a catchment area of an urban area based on a triangle surface patch partition as the basis of subsequent simulations. The urban area water logging flood processing simulation method based on the CD-TIN comprises (1) offering a calculation method of water volume runoff yield process in the catchment area based on inflow water volume and outflow water volume, (2) proposing a calculation method of dropsy water level in a flood area based on a triangular prism formed by a triangle which is taken as a bottom and three plumb lines which are made upwards from the three peak points of the triangle, and (3) designing a water volume confluence flow calculation method which takes characteristics of earth surface into consideration after the water volume of the catchment area reaches an water outlet. The urban area water logging flood processing simulation method based on the CD-TIN can effectively stimulate and analyze the range and the water depth of the urban area water logging flood, offers a new method for the research of an analysis software of the urban area water logging flood, and can supply technical support for urban area flood prevention, drainage scheme and emergency warning and rescue.

Description

technical field [0001] The invention relates to the field of simulation analysis and simulation of waterlogging in urban areas. More specifically, it relates to a method for simulating urban waterlogging and inundation process based on Constrained Delaunay Triangular Irregular Network (CD-TIN). Background technique [0002] With the acceleration of urbanization in my country, the scale of cities has increased sharply, especially for large cities, where the temperature in the urban area is high and the dust in the air is large, and the surrounding updraft forms a converging movement towards the urban area. Once the rising hot air meets the high-altitude strong convective cold air mass, it will form a city-centered torrential rain, that is, the "urban rain island effect". However, the changes in the underlying surface of the urban area, the filling and destruction of the river system, and the construction defects of drainage facilities such as the drainage pipe network have l...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 吴立新李志锋张振鑫王植
Owner 吴立新
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