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2141
Effects of rotor separation on the axial descent performance of dual-rotor configurations
Published 2023-01-01“…This study examines the aerodynamic coupling between closely arranged rotors in vertical flight and assesses the extent to which rotor–rotor interactions affect the rotor performance in this flight stage. Wind tunnel experiments were performed on a small-scale, dual-rotor set-up with adjustable rotor spacing, and the effect of rotor separation on thrust generation was quantified. …”
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2142
Optimization of the Eolic Cell to improve the wind velocity augmentation effect through the metamodel of optimal prognosis
Published 2022-12-01“…The whole research project involves studies on power augmentation curves, multivariable prognosis surfaces, optimum spacing layout, peripherally-supported wind turbine, power curves, prototype testing, as well as exhaustive wind-tunnel and field experiments, which are expected to be included in future releases of the present research project.…”
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2143
Effect of Plasma Actuator Layout on the Passage Vortex Reduction in a Linear Turbine Cascade for a Wide Range of Reynolds Numbers
Published 2023-12-01“…The average value of the secondary flow velocity and the peak vorticity value at the LTC exit decreased by 59.0% and 68.8%, respectively, compared to the no-control case. Furthermore, the wind tunnel blower’s rotation speed was modified, adjustments were made to the LTC’s mainstream velocity, and the Reynolds number transitioned from 1.0 × 10<sup>4</sup> to 9.9 × 10<sup>4</sup>, approximately 10 times. …”
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2144
Energy harvester reliability study by Gaidai reliability method
Published 2024-02-01“…To study the performance of galloping energy harvesters, a series of laboratory wind tunnel tests have been conducted, selecting different wind speeds. …”
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2145
Flow around permeable porous plates placed normal to a horizontal wall
Published 2015-07-01“…The experiment was performed in a circuit-type wind tunnel having a test section of 200 mm in width and 200 mm in height. …”
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2146
Numerical Investigation of the Tip Vortex of a Straight-Bladed Vertical Axis Wind Turbine with Double-Blades
Published 2017-10-01“…The wind velocities obtained by CFD simulations are also compared with the experimental data from wind tunnel experiments. As a result, we can state that the wind velocity curves calculated by CFD simulations are consistent with Laser Doppler Velocity (LDV) measurements. …”
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2147
Flow Study on the Anemometers of the <i>Perseverance</i> Based on Towing Tank Visualization
Published 2022-12-01“…A comparison was made between the results achieved and those seen in a wind tunnel, realizing the high correlation they have. …”
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2148
Force Analysis of a Circular Cylinder at Ununiformed Flow in a T Pipe Junction
Published 2018-04-01“…Experiments are carried on in a small wind tunnel at five different velocity ratios (R) from 0.117 to 0.614. …”
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2149
Video-Tachometer Methodology for Wind Turbine Rotor Speed Measurement
Published 2020-12-01“…The method is tested and discussed based on two experimental environments with different characteristics: the former is a small wind turbine model (with a 0.45 m rotor diameter) in the wind tunnel facility of the University of Perugia, whose critical aspect is the high rotational speed (up to the order of 1500 RPM). …”
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2150
Triggering Shock Wave Positions by Patterned Energy Deposition
Published 2022-09-01“…Experiments are conducted to investigate the triggering effect of patterned near-surface electrical discharges on SW reflection from plane walls. In the wind tunnel, <inline-formula><math display="inline"><semantics><mrow><mi>M</mi><mo>=</mo><mn>4</mn></mrow></semantics></math></inline-formula>, <inline-formula><math display="inline"><semantics><msub><mi>P</mi><mn>0</mn></msub></semantics></math></inline-formula> = 4 bar, a solid wedge SW generator is mounted on the upper wall. …”
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2151
Aircraft Propeller Design through Constrained Aero-Structural Particle Swarm Optimization
Published 2022-03-01“…A case of study is carried out where the chord and pitch distributions are compared to minimal losses distribution from vortex theory. Wind tunnel tests were performed with printed propellers to conclude the feasibility of the entire routine and the differences between XFOIL and CFD optimal propellers. …”
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2152
Reynolds Sensitivity of the Wake Passing Effect on a LPT Cascade Using Spectral/<i>hp</i> Element Methods
Published 2022-02-01“…Reynolds-Averaged Navier–Stokes (RANS) methods continue to be the backbone of CFD-based design; however, the recent development of high-order unstructured solvers and meshing algorithms, combined with the lowering cost of HPC infrastructures, has the potential to allow for the introduction of high-fidelity simulations in the design loop, taking the role of a virtual wind tunnel. Extensive validation and verification is required over a broad design space. …”
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2153
Mechanical Durability Assessment of an Energy-Harvesting Piezoelectric Inverted Flag
Published 2021-12-01“…This paper presents results from a practical assessment of the endurance of an inverted flag energy harvester, tested over multiple days in a wind tunnel to provide first insights into flapping fatigue and failure. …”
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2154
A Study on a Casing Consisting of Three Flow Deflectors for Performance Improvement of Cross-Flow Wind Turbine
Published 2022-08-01“…In this study, output performance experiments using a wind tunnel and numerical fluid analysis were conducted on a cross-flow wind turbine with three flow deflector plates to evaluate the effectiveness of the casing on output performance improvement. …”
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2155
Agglomeration of particulate matter in chimneys using acoustic flow
Published 2024-02-01“…The assembly comprises the following key components: a wind tunnel, a particle dosing device, the agglomeration camera, and a particle concentration measurement device on the edge of the bench. …”
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2156
Influence Mechanism of a Bridge Wind Barrier on the Stability of a Van-Body Truck under Crosswind
Published 2022-02-01“…Taking van-body trucks as the research object, numerical calculation methods and wind tunnel test methods are used to conduct the wind-induced driving safety analyses of van trucks on a cross-sea bridge. …”
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2157
An Automatic 3D Point Cloud Registration Method Based on Biological Vision
Published 2021-05-01“…Lastly, a camera-projector system to dynamically measure the surface deformation during ablation tests in an arc-heated wind tunnel was developed, and the experimental results showed that the measuring precision for surface deformation exceeded 0.05 mm when surface deformation was smaller than 4 mm.…”
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2158
Experimental Investigation on the Transpiration Cooling Characteristics of Sintered Wire Mesh in Plain Weave
Published 2022-03-01“…Three samples with different porosities in a plain weave structure are tested with various blowing ratios in an open-loop wind tunnel with a heated mainstream flow. The temperature on the surface of the porous material is measured by an infrared camera to obtain the cooling efficiency. …”
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2159
The influence of flight style on the aerodynamic properties of avian wings as fixed lifting surfaces
Published 2016-10-01“…Dried wings from 10 bird species representing three distinct flight style groups were mounted on a force/torque sensor within a wind tunnel in order to test the hypothesis that wing morphologies associated with different flight styles exhibit different aerodynamic properties. …”
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2160
Experimental Heat Loads for Electrothermal Anti-Icing and De-Icing on UAVs
Published 2021-03-01“…Experiments were conducted in an icing wind tunnel facility for varying icing conditions at low Reynolds numbers. …”
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