North China Electric Power University Atmospheric Boundary Layer Simulator (ABLS)

Project Category: New Energy and Wind Power · wind tunnel test device · Non-standard scientific research equipment

Project Overview

For the needs of wind power aerodynamics and atmospheric boundary layer flow research, Xi'an Xinghualang Technology Co., Ltd. is developed for the wind tunnel laboratory of the New Energy College of North China Electric Power University.Atmospheric boundary layer simulation device (AtmosphericBoundary LayerSimulator，ABLS）。

The device is used to construct atmospheric boundary layer flow field with different turbulence intensity, turbulence integral scale and wind shear characteristics under wind tunnel experimental conditions, and provides adjustable inflow conditions for wind turbine, wind turbine blades and related aerodynamic model tests.

       The overall size of the device is 3 m × 3 m, which can be adapted to the binary test section and the ternary test section of the wind tunnel laboratory. The main body adopts a large frame-type multi-axis grid structure, which is composed of 24 horizontal shafts and 24 vertical shafts. The characteristic size of the single-piece grid is about 12cm. By adjusting the operating state of the grid system, the simulation of different atmospheric turbulence and wind shear conditions can be realized, which provides an experimental basis for the study of wind power aerodynamics in complex wind environment.

Project Background

The project relies on the wind tunnel laboratory of New Energy College of North China Electric Power University. Relying on the construction of the National Key Laboratory of New Energy Power System, the laboratory has the conditions for scientific research and teaching experiments related to the aerodynamics of wind turbines and blade airfoils.

The laboratory is equipped with ternary and binary test sections, of which the ternary test section has a size of 3 m (width) × 3 m (height) × 20 m (length) and a maximum wind speed of 35 m/s. The size of the binary test section is 3 m (width) × 1.5 m (height) × 4.5 m (length), and the maximum wind speed is 62 m/s. The configuration of the atmospheric boundary layer simulation device further expands the test capability of the wind tunnel in the study of complex atmospheric inflow and wind power aerodynamics.

Main Performance

Device specification: 3 m × 3 m

Grid structure: 24 horizontal axis × 24 vertical axis

Single grid feature size: about 12 cm

Turbulence control range: 5% ~ 40%

Turbulence integral scale control range: 0.15 m ~ 1.56 m

Regulation range of wind shear index: 0.05~0.40

Adaptation capability: taking into account the test requirements of binary test section and ternary test section

Project Features

Large-scale wind tunnel flow field control device

The overall structure design is carried out for the 3 m wind tunnel test section, and the integration of grid array, support frame and related institutions is realized in a large spatial scale, which meets the installation and operation requirements of the wind tunnel test environment.

multi-parameter atmospheric boundary layer simulation

The device can regulate key inflow parameters such as turbulence, turbulence integral scale and wind shear index, and can construct representative atmospheric boundary layer flow conditions according to different research conditions.

high density multi-axis grid structure

The large-scale grid array is formed by 24 horizontal rotating shafts and 24 vertical rotating shafts, and the high-density flow field control unit is formed in the limited test section, which provides the hardware basis for the experimental construction of complex turbulence structure.

Research on Aerodynamics for Wind Power

The device serves the aerodynamic research of wind turbines and wind turbine blades, and can cooperate with the existing aerodynamic load, flow field and vibration measurement system of the wind tunnel laboratory to provide a controlled inflow environment for the three-dimensional test of wind turbines and the two-dimensional test of blade airfoil.

Application Directions

Atmospheric boundary layer simulation | Wind turbine aerodynamics | Wind turbine blade aerodynamic characteristics | Complex turbulence inflow | Wind shear simulation | Wind tunnel flow field control | Experimental study on new energy equipment

Service Content

Scheme Design | Mechanical Structure Design | Grille System Design | Engineering Drawing | Parts Processing | Large Structure Assembly | Site Installation | System Commissioning