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Aircraft Wake Vortex Transport Model
Journal of Aircraft, 1973An analysis has been developed for high-aspect-ratio jet-flap wings of arbitrary geometry and blowing. It appears that the present method is as accurate as other known methods and is flexible and rapid, particularly for discontinuous planforms. Although definitive test data are lacking, correlation with existing experimental data is satisfactory.
M. BRASHEARS, J. HALLOCK
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A mathematical model of the sleep/wake cycle
Journal of Mathematical Biology, 2009We present a biologically-based mathematical model that accounts for several features of the human sleep/wake cycle. These features include the timing of sleep and wakefulness under normal and sleep-deprived conditions, ultradian rhythms, more frequent switching between sleep and wakefulness due to the loss of orexin and the circadian dependence of ...
Rempe, Michael J. +2 more
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Modeling Sleep and Wakefulness in the Thalamocortical System
Journal of Neurophysiology, 2005When the brain goes from wakefulness to sleep, cortical neurons begin to undergo slow oscillations in their membrane potential that are synchronized by thalamocortical circuits and reflected in EEG slow waves. To provide a self-consistent account of the transition from wakefulness to sleep and of the generation of sleep slow waves, we have constructed ...
Sean, Hill, Giulio, Tononi
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Benchmarking of a Free Vortex Wake Model for Prediction of Wake Interactions
35th Wind Energy Symposium, 2017Abstract Turbine-wake interactions pose significant challenges in the development of wind farms. These interactions can lead to an increase in wind energy cost through reduction in wind farm power efficiency as well as a reduction of functional turbine lifetime.
Kelsey Shaler +2 more
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An overview of data for wake model evaluation in the Virtual Wakes Laboratory
Applied Energy, 2013Abstract Improved prognostic models of wind turbine wakes are essential to improved design of offshore wind farms to maximized power production and minimize turbine fatigue loading. This paper describes the Virtual Wake Laboratory, an online open access resource that provides meteorological and wind farm data for use in wake characterization and wake
R.J. Barthelmie, S.C. Pryor
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2014
The dynamics of the turbulent three-dimensional wake generated by an axisymmetric bluff body with blunt trailing edge are experimentally and theoretically investigated at a diameter based Reynolds number of 188,000. A detailed analysis of the base pressure measurements shows that the large scale structures of the turbulent three-dimensional wake retain
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The dynamics of the turbulent three-dimensional wake generated by an axisymmetric bluff body with blunt trailing edge are experimentally and theoretically investigated at a diameter based Reynolds number of 188,000. A detailed analysis of the base pressure measurements shows that the large scale structures of the turbulent three-dimensional wake retain
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2017
Different models of wake expansion are presented in this chapter: the 1D momentum theory model, the cylinder analog model and Theodorsen’s model. Far wake models such as the ones from Frandsen or Rathmann or only briefly mentioned. The different models are compared to each other. Results from this chapter are used in Chap.
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Different models of wake expansion are presented in this chapter: the 1D momentum theory model, the cylinder analog model and Theodorsen’s model. Far wake models such as the ones from Frandsen or Rathmann or only briefly mentioned. The different models are compared to each other. Results from this chapter are used in Chap.
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Stochastic model for turbulent, reacting wakes
Aerothermochemistry of Turbulent Flows Conference, 1965Electron density fluctuations in a turbulent wake are examined by means of a stochastic model. The gas velocity fluctuations are prescribed, both in mean values and in statistical properties, and the chemical rate and continuity equations are solved for an ensemble of velocity samples.
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Aerodynamic Investigation of Hover Using Vortex Ring Wake Model and Free Vortex Wake Model
AIAA SCITECH 2025 ForumModeling rotor inflow and wake dynamics is fundamental to understanding and improving rotorcraft performance. Especially, hover modeling plays an important role in aircraft design, aerodynamic assessments, and the development of control systems for helicopters and eVTOLs.
Öztürk, İldeniz, Sezer Uzol, Nilay
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Propeller Wake Alignment Models
SNAME 8th Propeller and Shafting Symposium, 1997Various wake alignment techniques which have been developed in the past for the analysis of non-cavitating propellers in uniform inflows are reviewed and some of them are extended in the case of cavitating flows subject to inclined inflows. The effect of the inclined trailing wake geometry on the predicted cavities and blade forces is found to be ...
Spyros A. Kinnas, Sangwoo Pyo
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