Results 31 to 40 of about 284,390 (182)
Buildings, 2022 In the present study, multiple-fan active control wind tunnel tests are conducted to investigate the aerodynamic forces on a 5:1 rectangular cylinder in sinusoidal streamwise winds with different angles of attack (AoA).
Bo Wu +5 more
doaj +1 more source
A Comparative Aerodynamic study of Nonplanar Wings
International Journal of Aviation, Aeronautics, and Aerospace, 2019 In this work four nonplanar wing configurations were studied using the vortex-lattice method: the wing-winglet, the C-wing, the biplane, and the box wing.
Mondher Yahyaoui
doaj +1 more source
A highly adaptive three dimensional hybrid vortex method for inviscid flows and helically symmetric vortex equilibria [PDF]
, 2012 This thesis is concerned with three-dimensional vortex dynamics, in particular the modelling of vortex structures in an inviscid context. We are motivated by the open problem of regularity of the inviscid equations, i.e.
Lucas, Daniel
core +2 more sources
A Periodically Rotating Distributed Forcing of Flow over a Sphere for Drag Reduction
Mathematics, 2023 In the present study, we propose a periodically rotating distributed forcing for turbulent flow over a sphere for its drag reduction. The blowing/suction forcing is applied on a finite slot of the sphere surface near the flow separation, and unsteady ...
Donggun Son, Jungil Lee
doaj +1 more source
Engineering Applications of Computational Fluid Mechanics, 2021 Research on turbulent drag reduction has been limited owing to the limitations of existing parameters used for the identification of vortex structures.
Zhengren Wu +3 more
doaj +1 more source
Induced-Drag Calculations in the Unsteady Vortex Lattice Method
AIAA Journal, 2013 α angle of attack, rad Γ circulation, m2s−1 λ wake wavelength, m ρ∞ free-stream air density, kgm −3 τ panel tangential vector ω angular velocity, rad s−1 a non-dimensional distance between aerofoil mid-chord and centre of rotation A panel area, m b semi-chord, m ∆b panel span, m B wingspan, m c aerofoil chord, m ∆c panel chord, m C Theodorsen’s ...
Simpson, RJS, Palacios, R, Murua, J
openaire +3 more sources
Wake Evolution of Wing-Body Configuration from Roll-Up to Vortex Decay [PDF]
, 2012 The development of aircraft’s wake vortex from the roll-up until vortex decay is studied. An aircraft model and the surrounding flow field obtained from high-fidelity Reynolds-averaged Navier-Stokes simulation are swept through a ground-fixed ...
Misaka, Takashi +5 more
core +1 more source
Vortex rings and mutual drag in trapped Bose-Einstein condensates [PDF]
Physical Review A, 1999 4 pages, 5 figures, REVTeX. To appear in Phys.
Jackson, B., McCann, J. F., Adams, C. S.
openaire +2 more sources
Wake Vortex Modelling and Simulation for Air Vehicles in Close Formation Flight [PDF]
, 2010 The aim of this research is to develop realistic models of aerodynamic cross-coupling e ects that can be incorporated in real-time or near real-time simulations of Unmanned Aerial Vehicles (UAVs) in close formation flight.
Saban, Deborah
core +5 more sources
Critical velocity, vortex shedding, and drag in a unitary Fermi superfluid [PDF]
Physical Review A, 2013 7 pages, 7 figures (accepted for publication in Phys. Rev. A)
ANCILOTTO, FRANCESCO +2 more
openaire +3 more sources