Rain erosion performance simulation analysis method of wind turbine blade leading edge protective film
A technology for wind turbine blades and simulation analysis, applied in wind power generation, design optimization/simulation, computer-aided design, etc., can solve problems such as single working performance, inconsistent impact parameters, and inability to simulate various rainfall environments, and improve simulation accuracy. , the effect of reliable technical solutions
Pending Publication Date: 2022-05-27
BEIJING UNIV OF TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] For the research on the rain erosion protection of the leading edge of large wind turbine blades, the combination of numerical simulation and experiment is mainly used at present. However, the existing rain erosion experimental device has a single working performance and cannot simulate various rainfall environments.
However, the traditional numerical simulation method has complex calculations, does not consider the buffering effect of the blade composite matrix on the protective coating under the impact, the impact parameters do not match the actual working conditions, and does not consider the inhibition of the surface water on the impact
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.
[0044] like figure 1 As shown, a method for simulating and analyzing rain erosion performance of a wind turbine blade leading edge protective film includes the following steps:
[0045] Step 1: Establish a calculation model of the impeller wind field and divide the grid.
[0046] First, import the airfoil space coordinates obtained after the coordinate change into SolidWorks to establish the airfoil section, use the surface lofting command to est...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a rain erosion performance simulation analysis method of a wind turbine blade leading edge protective film, and relates to the technical field of wind turbine blade impact simulation. Simulating raindrops by using a dispersed phase on the basis of impeller wind field simulation to obtain a raindrop horizontal speed, and deducing an impact speed based on a simulation result and a raindrop vertical falling speed; a front edge protection film finite element model with a composite material as a base body is established in a lamination mode, and raindrop impact is simulated through an SPH method; the rain erosion impact of the protective film under various working conditions is subjected to simulation analysis by changing the raindrop diameter and the raindrop impact speed in the model, and the buffer effect of surface water covering is analyzed by establishing a water covering impact model. According to the method, the actual impact working condition of raindrops is obtained based on wind-driven rain simulation, the local accurate model of the blade is established, blade protection film rain erosion impact can be simulated more efficiently and accurately, and reliable basis and effective data are provided for rain erosion research of blade protection materials.
Description
technical field [0001] The invention belongs to the technical field of wind turbine blade impact simulation, and in particular relates to a rain erosion performance simulation analysis method of a wind turbine blade leading edge protective film. Background technique [0002] As the fastest-growing green energy technology in the world, wind power technology plays an important role in solving the energy crisis, and offshore wind power will become the focus of the future wind power market due to its stronger, more stable wind resources and larger unit capacity. In 2020, the new installed capacity of global offshore wind power will be 6.1GW, and the total installed capacity will be 35GW. According to the Global Wind Energy Council, the world will add more than 235GW of offshore wind power capacity in the next decade. The leading edge of offshore wind turbine blades is subjected to long-term rain impact during the rotation process, which makes the leading edge prone to erosion, ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/10G06F30/23G06F30/28G06T17/20G06F111/10G06F113/06G06F113/08G06F119/14
CPCG06F30/10G06F30/23G06F30/28G06T17/205G06F2111/10G06F2113/08G06F2119/14G06F2113/06Y02E10/72
Inventor 张建宇杨凯博
Owner BEIJING UNIV OF TECH