A Modular Low-Speed Wind Tunnel With Two Test Sections and Variable Inflow Angle

A modular low-speed wind tunnel system was designed and developed. Due to the modular concept, the wind tunnel permitted open-jet operation, cascade testing or closed-circuit operation. The closed-circuit wind tunnel had two test sections, and it had a high quality test-section with variable flow angle that is particular valuable for airfoil or blade testing. Physical calibration of the wind tunnel facility validated the design rules and CFD methods used and demonstrated that these techniques can be employed successfully for future wind tunnel designs. A detailed study of the thermal behavior of the closed-circuit wind tunnel was conducted. A feedback control method based on a PI control law was developed and tested for the wind tunnel speed.

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Numerical modeling of the flow conditions in a closed-circuit low-speed wind tunnel

Journal of Wind Engineering and Industrial Aerodynamics ◽

10.1016/j.jweia.2006.02.001 ◽

2006 ◽

Vol 94 (10) ◽

pp. 699-723 ◽

Cited By ~ 33

Author(s):

Peter Moonen ◽

Bert Blocken ◽

Staf Roels ◽

Jan Carmeliet

Keyword(s):

Numerical Modeling ◽

Wind Tunnel ◽

Closed Circuit ◽

Flow Conditions ◽

Low Speed ◽

Low Speed Wind Tunnel

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Design and Implementation of a Low-Speed Wind Tunnel System

10.1109/iciea51954.2021.9516145 ◽

2021 ◽

Author(s):

Zheng Zhao ◽

Changchen Zhao ◽

Zhongcai Pei ◽

Weihai Chen

Keyword(s):

Wind Tunnel ◽

Low Speed ◽

Design And Implementation ◽

Tunnel System ◽

Low Speed Wind Tunnel

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Research on Movement Relationship and Multi-Axis Motion Control Strategy for the Big Attack Angle Device of the Low-Speed Wind Tunnel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.945-949.1517 ◽

2014 ◽

Vol 945-949 ◽

pp. 1517-1523 ◽

Cited By ~ 1

Author(s):

Wei Hua Chu ◽

Wen Gai ◽

Zheng Hua Gu

Keyword(s):

Wind Tunnel ◽

Position Control ◽

Control Method ◽

Angle Of Attack ◽

Control Process ◽

Angular Speed ◽

Attack Angle ◽

Low Speed ◽

Multiple Spindle ◽

Low Speed Wind Tunnel

For the big angle attack device of 4m×3m low-speed wind tunnel, the attack angle device α change is realizes through the triangle link block organization, realizes angle of attack Alpha uniform speed revolving is a misalignment speed control process. In order to guarantee the blocking in realizes the angle of attack Alpha and in the angle of slide Beta pinpointing process, according to the request angular speed uniform speed rotation, and guaranteed that the model center does not deviate in the rotation process the wind tunnel center, this article, in the angle of attack Alpha organization, the angle of slide Beta organization, Y to the elevating mechanism, Z carry on the comprehensive mathematical analysis to the crosswise translation organization speed and the potential motion relations in the foundation, has conducted the deep research to the multiple spindle linkage speed and the position control method, finally uses the control hypothesized kingbolt, Alpha, Beta, y, the z organization position follow.

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