Results 1 to 10 of about 9,172 (224)
Investigations in the Phantomatic City: Breslau in the Retro Detective Novels of Marek Krajewski [PDF]
Slovenska Literatura, 2021 Owing to the compatibility of the text (signifier) and city (signified), it is relatively easy to represent the city in a literary text. The city is always already semiotically mediated and therefore prepared for its further semiotic processing in ...
Tomáš Horváth
doaj +1 more source
Aerodynamic effects of Gurney flaps on the rotor blades of a research wind turbine [PDF]
Wind Energy Science, 2020 This paper investigates the aerodynamic impact of Gurney flaps on a research wind turbine of the Hermann-Föttinger Institute at the Technische Universität Berlin. The rotor radius is 1.5 m, and the blade configurations consist of the clean and the
J. Alber +9 more
doaj +1 more source
Determination of the angle of attack on a research wind turbine rotor blade using surface pressure measurements [PDF]
Wind Energy Science, 2020 In this paper, a method to determine the angle of attack on a wind turbine rotor blade using a chordwise pressure distribution measurement was applied. The approach used a reduced number of pressure tap data located close to the blade leading edge.
R. Soto-Valle +5 more
doaj +1 more source
Wind, 2023 The potential of airfoil optimisation for the specific requirements of airborne wind energy (AWE) systems is investigated. Experimental and numerical investigations were conducted at high Reynolds numbers for the S1223 airfoil and an optimised airfoil ...
Denes Fischer +3 more
doaj +1 more source
Fluids, 2021 Turbulence parameters, in particular integral length scale (ILS) and turbulence intensity (Tu), are key input parameters for various applications in aerodynamics and aeroacoustics.
Luciano Caldas +4 more
doaj +1 more source
Vortex identification methods applied to wind turbine tip vortices [PDF]
Wind Energy Science, 2022 This study describes the impact of postprocessing methods on the calculated parameters of tip vortices of a wind turbine model when tested using particle image velocimetry (PIV).
R. Soto-Valle +6 more
doaj +1 more source
Energies, 2021 Accurate and reproducible aeroelastic load calculations are indispensable for designing modern multi-MW wind turbines. They are also essential for assessing the load reduction capabilities of advanced wind turbine control strategies.
Sebastian Perez-Becker +3 more
doaj +1 more source
Fluids, 2021 Fluidic actuators are designed to control the oscillatory helical mode, called a precessing vortex core (PVC), which is often observed in gas turbine combustors.
Amrit Adhikari +3 more
doaj +1 more source
Modern methods for investigating the stability of a pitching floating platform wind turbine [PDF]
Wind Energy Science, 2017 The QBlade implementation of the lifting-line free vortex wake (LLFVW) method was tested in conditions analogous to floating platform motion. Comparisons against two independent test cases using a variety of simulation methods show good agreement in ...
M. Lennie +4 more
doaj +1 more source
Switching Action of a Bistable Fluidic Amplifier for Ultrasonic Testing
Fluids, 2021 Air-coupled ultrasonic testing is widely used in the industry for the non-destructive testing of compound materials. It provides a fast and efficient way to inspect large concrete civil infrastructures for damage that might lead to catastrophic failure ...
Thorge Schweitzer +3 more
doaj +1 more source