Wind power CFD (Computational Fluid Dynamic) simulation method taking complex landform into account

Abstract

The invention discloses a wind power CFD (Computational Fluid Dynamic) simulation method taking complex landform into account. According to the method, a three-dimensional model is established to simulate wind power distribution, wind power distribution in complex mountainous landforms can be simulated according to CFD values, the method has the characteristics of saving time, and being economicaland efficient, and the benefits of constructed wind power plants can be directly affected by flow field simulation accuracy degrees, the construction cost of a wind power field is further reduced, inaddition, the site of a wind power plant can be selected relatively accurately, and later economic benefits can be increased.

Description

technical field [0001] The invention belongs to the field of wind energy simulation, and more specifically relates to a wind energy CFD simulation method considering complex terrain. Background technique [0002] Although the existing wind energy resource assessment methods can solve the wind energy assessment of some terrains, this method is not suitable for complex mountainous terrain wind fields. It is necessary to have a complete, detailed and accurate estimate of the wind speed distribution in the site. At present, there are mainly two methods for obtaining the wind field distribution in complex terrain: (1) On-site measurement, installing wind measuring towers at key positions on the site, and carrying out wind speed monitoring for 1-3 years 1. After the continuous observation of the wind direction, carry out the assessment of the wind resource. The on-site measurement can truly reflect the situation of the wind resource on the site. It is indispensable in the early co...

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Problems solved by technology

[0002] Although the existing wind energy resource assessment methods can solve the wind energy assessment of some terrains, this method is not suitable for complex mountainous terrain wind fields. It is necessary to have a complete, detailed and accurate estimate of the wind speed distribution in the site. At present, there are mainly two methods for obtaining the wind field distribution in complex terrain: (1) On-site measurement, installing wind measuring towers at key positions on the site, and carrying out wind speed monitoring for 1-3 years 1. After the continuous observation of the wind direction, carry out the assessment of the wind resource. The on-site measurement can truly reflect the situation of the wind resource on the site. It is indispensable in the early construction of the wind farm, but limited to the number of wind measuring towers, the help for the micro-site selection of the wind turbine is limited; (2) Wind tunnel test, establish a scale model of complex terrain, measure the wind field distribution in the atmospheric boundary layer wind tunnel, comprehensively consider the cost, cycle and test accuracy, the wind tunnel test has no obvious advantages compared with the field measurement method, so Commonly used in wind field verification studies for typical terrain