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Determination method of peripheral flow field length in simulation analysis of micro terrain wind field

A technology for simulation analysis and determination of methods, applied in design optimization/simulation, instruments, calculations, etc., can solve problems such as inaccurate calculations, inapplicability, complex terrain, etc., and achieve the effects of facilitating calculations, improving accuracy, and ensuring accuracy

Active Publication Date: 2021-11-05
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

[0003] In view of this, the present invention proposes a method for determining the length of the peripheral flow field in the simulation analysis of the micro-topographic wind field, aiming to solve the problems that the existing methods for determining the length of the peripheral flow field are prone to inaccurate calculations and cannot be applied to complex terrain

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  • Determination method of peripheral flow field length in simulation analysis of micro terrain wind field
  • Determination method of peripheral flow field length in simulation analysis of micro terrain wind field
  • Determination method of peripheral flow field length in simulation analysis of micro terrain wind field

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[0018] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0019] see figure 1 , figure 1 The flow chart of the method for determining the length of the peripheral flow field in the micro terrain wind field simulati...

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Abstract

The invention provides a method for determining the length of the peripheral flow field in the simulation analysis of the micro-topographic wind field, wherein the method includes the following steps: determining the shape of each peak in the continuous peaks; setting a plurality of wind speed monitoring above each peak point, conduct wind field simulation analysis, and determine the wind speed at each wind speed monitoring point; according to the wind speed at each wind speed monitoring point, determine the similarity coefficient of the wind speed profile between two adjacent peaks in turn; when the similarity coefficient is less than or equal to the convergence tolerance , the sum of the distances between the previous peak of the two adjacent peaks and the previous peaks in the direction of continuous peak arrangement is determined as the length of the peripheral flow field. In the present invention, it is convenient to carry out wind field simulation analysis, which is beneficial to the calculation of the computer, and can effectively improve the accuracy of the calculation of the peripheral flow field length, thereby ensuring the accuracy of the wind field simulation analysis results, not only applicable to simple terrain, Also suitable for complex terrain.

Description

technical field [0001] The invention relates to the technical field of disaster prevention and mitigation for power transmission and distribution equipment, in particular to a method for determining the length of a peripheral flow field in the simulation analysis of a micro-topographic wind field. Background technique [0002] With the continuous improvement of computing power of computer hardware and software, the application of fluid simulation analysis to obtain the characteristics of wind field in micro-topographic regions is becoming more and more easy to realize. In the fluid simulation analysis, since the real profile at the inflow boundary of the micro-topography area cannot be known, it is usually assumed that the incoming wind velocity profile at infinity obeys the wind velocity profile curve obtained by using the power exponent rate method under the A-D landforms. After the wind passes through several peaks, the wind speed profile is basically stable, and the wind...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F113/08
CPCG06F30/20
Inventor 张宏杰李峰廖志军韩军科杨风利邢海军王旭明朱彬荣胡晓光苏志钢
Owner CHINA ELECTRIC POWER RES INST
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