Acquisition of Signals in a Wind Tunnel Using the Dasylab Software Package

Pytel, Krzysztof; Szczerba, Zygmunt; Farmaha, Igor; Kurdziel, Franciszek; Kalwar, Adam; Gumuła, S.

doi:10.1109/memstech49584.2020.9109430

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…In the case of a vertical-axis wind turbine, the issue is more complex due to the rotational plane being parallel to the inflow direction, as shown in Figure 3a-d The variation of the angle of attack around the circumference of the vortex path can be determined using geometric relationships and knowledge of the tip speed ratio (𝜆 or TSR), achievable for a specific turbine by performing aerodynamic tunnel tests [45].…”

Section: Methodsmentioning

confidence: 99%

“…α-angle of attack, °; V-wind velocity, m/s; The variation of the angle of attack around the circumference of the vortex path can be determined using geometric relationships and knowledge of the tip speed ratio (λ or TSR), achievable for a specific turbine by performing aerodynamic tunnel tests [45].…”

Section: Methodsmentioning

confidence: 99%

“…Airfoil characteristic studies were carried out at the Wind Tunnel Laboratory of the AGH University of Science and Technology in Krakow. The general construction tests took place at the Department of Aeronautical and Aerospace Engineering of Rzeszow University of Technology in an aerodynamic tunnel with a measurement space, as shown in Figure 4a-f [45]. In Figure 4a, a top view photograph of the wind tunnel is presented.…”

Section: Methodsmentioning

confidence: 99%

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Wind Tunnel Experimental Study on the Efficiency of Vertical-Axis Wind Turbines via Analysis of Blade Pitch Angle Influence

Szczerba

et al. 2023

Energies

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This paper presents results of experimental investigations and numerical simulations of a vertical-axis H-type wind turbine, considering the influence of propeller blade pitch angle on turbine characteristics. An innovative airfoil profile based on a modified symmetric NACA0015 airfoil profile was used as the designed blade profile, which was tested in a wind tunnel over a range of Reynolds numbers from 50,000 to 300,000. The phenomenon of angle-of-attack variation and the resulting forces acting on the blades, particularly in the horizontal configuration and vertical axis of rotation, were discussed. Series of experiments were conducted on a 1:1 scale four-bladed turbine model in the wind tunnel to determine the characteristics, specifically the power coefficient distribution over the tip speed ratio for various Reynolds numbers and blade pitch angles. Subsequently, the turbine was modeled using Qblade software, and a series of calculations were performed under the same conditions. The numerical results were validated with the experimental data.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Wind Tunnel Experimental Study on the Efficiency of Vertical-Axis Wind Turbines via Analysis of Blade Pitch Angle Influence

Szczerba

et al. 2023

Energies

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Acceleration-Insensitive Pressure Sensor for Aerodynamic Analysis

Szczerba

et al. 2023

Energies

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This paper presents a method for preparing a pressure sensor that is insensitive to acceleration along with experimental evidence of its efficacy in aerodynamic analysis. A literature review and preliminary studies revealed the undesirable effect of acceleration on sensors that are located on moving elements, as evidenced by deviations from actual pressure values for piezoresistive pressure sensors that are made using MEMS technology. To address this, the authors developed a double-membrane sensor geometry that eliminated this imperfection; a method of implementing two solo pressure sensors as a new geometry-designed sensor was also proposed. Experimental tests of this suggested solution were conducted; these measurements are presented here. The results indicated that this new sensor concept could be used to measure the dynamic pressures of rotating and moving objects in order to obtain measurement results that are more reliable and closer to the true values that are derived from aerodynamic analyses. The published results confirm the reliability of the proposed device.

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Acquisition of Signals in a Wind Tunnel Using the Dasylab Software Package

Cited by 2 publications

References 8 publications

Wind Tunnel Experimental Study on the Efficiency of Vertical-Axis Wind Turbines via Analysis of Blade Pitch Angle Influence

Wind Tunnel Experimental Study on the Efficiency of Vertical-Axis Wind Turbines via Analysis of Blade Pitch Angle Influence

Acceleration-Insensitive Pressure Sensor for Aerodynamic Analysis

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