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Now showing items 21-30 of 54
Computational study of the vortex path variation with the VG height
(IOP Publishing, 2014)
An extensive range of conventional, vane-type, passive vortex generators (VGs) are in use for successful applications of flow separation control. In most cases, the VG height is designed with the same thickness as the local ...
Predictive Dynamic Window Approach Development with Artificial Neural Fuzzy Inference Improvement
(MDPI, 2019-08-26)
The aim of this paper is to improve the dynamic window approach algorithm for mobile robots by implementing a prediction window with a fuzzy inference system to adapt to fixed parameters, depending on the surrounding ...
Experimental Evaluation of Perfluorocarbon Aerosol Generation with Two Novel Nebulizer Prototypes
(MDPI, 2019-01-05)
The potential of non-invasive ventilation procedures and new minimally invasive techniques has resulted in the research of alternative approaches as the aerosolization for the treatment of respiratory distress syndrome ...
Computational Modeling of Gurney Flaps and Microtabs by POD Method
(MDPI, 2018-08)
Gurney flaps (GFs) and microtabs (MTs) are two of the most frequently used passive flow control devices on wind turbines. They are small tabs situated close to the airfoil trailing edge and normal to the surface. A study ...
Piezoelectric Energy Harvesting Controlled with an IGBT H-Bridge and Bidirectional Buck–Boost for Low-Cost 4G Devices
(MDPI, 2020-12-09)
In this work, a semi-submersible piezoelectric energy harvester was used to provide power to a low-cost 4G Arduino shield. Initially, unsteady Reynolds averaged Navier–Stokes (URANS)-based simulations were conducted to ...
Modeling of Motorized Orthosis Control
(MDPI, 2019-06-15)
Orthotic devices are defined as externally applied devices that are used to modify the structural and functional characteristics of the neuro-muscular and skeletal systems. The aim of the current study is to improve the ...
Magnetic properties of “thick” glass-coated Fe-rich microwires
(American Institute of Physics, 2019-03)
We report on preparation and magnetic properties of Fe71.7B13.4Si11Nb3Ni0.9 glass-coated microwire with metallic nucleus diameter d = 103 mu m and total diameter D = 158 mu m prepared by Taylor-Ulitovsky method. Amorphous ...
Parametric Study of the Device Angle Dependency of a Single Vortex Generator on a Flat Plate
(2014-01-23)
[EN] A detailed study of the device angle dependency of a single vortex generator (VG) is presented in this paper. A single Vortex Generator on a test section wall case, with four different positions of the device angle ...
Self-Similarity and helical symmetry in vortex generator flow simulations
(IOP Publishing, 2014)
According to experimental observations, the vortices generated by vortex generators have previously been observed to be self-similar for both the axial (u(z)) and azimuthal (u(circle minus)) velocity profiles. Further, the ...
Cell-Set Modelling for a Microtab Implementation on a DU91W(2)250 Airfoil
(MDPI, 2020-12-20)
Microtabs (MTs) are a regularly used flow control device in terms of wind turbine optimization. The present study introduces the application of the novel cell-set model for an MT implementation on a DU91W(2)250 airfoil. ...