Results 11 to 20 of about 3,085,452 (343)
Numerical investigation of minimum drag profiles in laminar flow using deep learning surrogates [PDF]
Journal of Fluid Mechanics, 2020 Efficiently predicting the flow field and load in aerodynamic shape optimisation remains a highly challenging and relevant task. Deep learning methods have been of particular interest for such problems, due to their success in solving inverse problems in
Li-Wei Chen +3 more
semanticscholar +1 more source
A methodology for data-driven modeling and prediction of the drag losses of wet clutches
Forschung im Ingenieurwesen, 2023 In wet clutches, load-independent drag losses occur in the disengaged state and under differential speed due to fluid shearing. The drag torque of a wet clutch can be determined accurately and reliably by means of costly and time-consuming measurements ...
Lukas Pointner-Gabriel +3 more
semanticscholar +1 more source
Swimming Energy Economy in Bottlenose Dolphins Under Variable Drag Loading [PDF]
Frontiers in Marine Science, 2018 Instrumenting animals with tags contributes additional resistive forces (weight, buoyancy, lift, and drag) that may result in increased energetic costs; however, additional metabolic expense can be moderated by adjusting behavior to maintain power output.
Julie M. van der Hoop +7 more
openaire +4 more sources
Load cell adoption in an electronic drag force flowmeter [PDF]
Scientia Agricola, 2011 This research introduces the development of an electronic flowmeter based on the drag force that a body experiences when immersed in a fluid stream. Its main goal was the development of an Electronic Drag Force Flowmeter (EDFF) using a load cell, as well as the evaluation of its performance parameters.
Camargo, Antonio Pires de +4 more
openaire +2 more sources
Adaptive finite-time control for quadrotor UAV with time-varying load based on disturbance observer
Journal of Hebei University of Science and Technology, 2021 For the quadrotor unmanned aerial vehicle (UAV) system with time-varying load,the compound finite-time control strategy was proposed in the presence of unknown external disturbances and unknown drag coefficients.Firstly,a complete mathematical model of ...
Xiaojing1 WU +4 more
doaj +1 more source
Reducing temperature, drag load and wear during aircraft tyre spin-up [PDF]
Aircraft Engineering and Aerospace Technology, 2022 Purpose Due to the static condition of the wheels at touchdown, they skid on the runway, which may cause the tyres to burn and wear. This phenomenon occurs in a fraction of a second, known as the spin-up period. The purpose of this paper is to introduce a new strategy to reduce the horizontal force, tyre temperature and wear during the spin-up period.
Mahjouri, Saeed +2 more
openaire +3 more sources
The Influence of Exercise Modality on Training Load Management.
International Journal of Sports Physiology and Performance, 2021 PURPOSE To provide novel insight regarding the influence of exercise modality on training load management by (1) providing a theoretical framework for the impact of physiological and biomechanical mechanisms associated with different exercise modalities ...
Ø. Sandbakk, T. Haugen, G. Ettema
semanticscholar +1 more source
Alexandria Engineering Journal, 2018 Preparing high speed and sea keeping simultaneously are outstanding features of Catamaran boats (as one of multi-hull boats). In this paper, influence of loading conditions on drag through 6 series of experimental tests has been investigated. Experiments
A. Hajiabadi +2 more
doaj +1 more source
Impact of Limited Degree of Freedom Drag Coefficients on a Floating Offshore Wind Turbine Simulation
Journal of Marine Science and Engineering, 2023 The worldwide effort to design and commission floating offshore wind turbines (FOWT) is motivating the need for reliable numerical models that adequately represent their physical behavior under realistic sea states.
Arjun Srinivas +5 more
doaj +1 more source
Investigations of aerodynamic drag forces during structural blade testing using high-fidelity fluid–structure interaction [PDF]
Wind Energy Science, 2020 Aerodynamic loads need to be known for planning and defining test loads beforehand for wind turbine blades that are tested for fatigue certifications. It is known that the aerodynamic forces, especially drag, are different for tests and operation, due to
C. Grinderslev +4 more
doaj +1 more source