A Novel Analytical Wake Model with a Cosine-Shaped Velocity Deficit [PDF]
A novel analytical model is proposed and validated in this paper to predict the velocity deficit in the wake downwind of a wind turbine. The model is derived by employing mass and momentum conservation and assuming a cosine-shaped distribution for the ...
Ziyu Zhang, Peng Huang, Haocheng Sun
doaj +5 more sources
The deficit of the isometric tetanic tension redeveloped after a release of frog muscle at a constant velocity. [PDF]
Frog sartorius muscles tetanized isometrically were released at a constant velocity from lengths lL to lS (delta l = lL -lS; Ls greater than lO). The tension PS redeveloped after the release was lower than the isometric tension PS at LS, and higher than the isometric tension PL at lL. The tension deficit D is defined as the difference PS-PS. The timing
L Plaghki
exaly +6 more sources
Seasonality and determinants of child growth velocity and growth deficit in rural southwest Ethiopia [PDF]
Background Ethiopia faces cyclic food insecurity that alternates between pre- and post- harvest seasons. Whether seasonal variation in access to food is associated with child growth has not been assessed empirically.
Netsanet Fentahun +3 more
doaj +6 more sources
Percentage-Based Change of Direction Deficit: A New Approach to Standardize Time- and Velocity-Derived Calculations [PDF]
Abstract Freitas, TT, Pereira, LA, Alcaraz, PE, Azevedo, PHSM, Bishop, C, and Loturco, I. Percentage-based change of direction deficit: a new approach to standardize time- and velocity-derived calculations. J Strength Cond Res 36(12): 3521–3526, 2022—Change of direction (COD) efforts are crucial in team sports, and an extensive body of ...
Tomás T. Freitas +5 more
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Analytical and numerical study of the expansion effect on the velocity deficit of rotating detonation waves [PDF]
In this work, a quasi-one-dimensional ZND model of detonation considering the expansion process perpendicular to the detonation propagation direction is extended to the rotating detonation engine (...
Songbai Yao, Jian-Ping Wang
exaly +2 more sources
Geodetic Constraints on Segment-Scale Slip Rates and Interseismic Coupling Along the Havran–Balıkesir Fault Zone, NW Anatolia, Türkiye [PDF]
This study presents a new high-resolution GNSS-derived velocity field and the first internally consistent, segment-resolved block model for the Havran–Balıkesir Fault Zone (HBFZ) in western Anatolia.
İbrahim Tiryakioğlu +12 more
doaj +2 more sources
The Vertical Force-velocity Profile in Male Under-20 National Team Rugby XV Union Players
Purpose: The main aim of the present study was to describe the Vertical Force-velocity (F-v) profile in male Under-20 (U-20) national team rugby XV union players.
Pablo Pérez-Ifrán +3 more
doaj +3 more sources
Vertical and Spanwise Wake Flow Structures of a Single Spire over Smooth Wall Surface in a Wind Tunnel [PDF]
The aerodynamic interaction between the wake flow structure behind a single spire with a smooth wall boundary layer at a long streamwise location was observed in a wind tunnel experiment.
M. A. Fitriady +2 more
doaj +1 more source
Wake of Elongated Low-Rise Building at Oblique Incidences
We investigated the turbulent wake of an elongated low-rise building at oblique wind incidence via wind tunnel experiments and numerical simulations. The deflection phenomenon of mean building wake is clearly supported by the downwind trajectory of the ...
Fei Wang, Kit Ming Lam
doaj +1 more source
Numerical simulation of vortices with axial velocity deficits [PDF]
Axial velocity deficit is a source of instability in vortices that may otherwise be stable. Temporal large-eddy simulation is performed to study the response of vortices with axial velocity deficits to random and controlled disturbances at high Reynolds numbers. The q vortex [Batchelor, J. Fluid Mech. 20, 321 (1964)] is used as a model of such vortices.
Ragab, Saad A., Sreedhar, M.
openaire +3 more sources

