Effects of leading-edge devices on the low-speed aerodynamic characteristics of a highly-swept arrow-wing [PDF]
An investigation was conducted in the Texas A&M University 7 by 10 foot Low Speed Wind Tunnel to provide a direct comparison of the effect of several leading edge devices on the aerodynamic performance of a highly swept wing configuration.
Imbrie, P. K. +2 more
core +1 more source
Pressure fluctuation–vortex interaction in an ultra-low specific-speed centrifugal pump
Journal of Low Frequency Noise, Vibration and Active Control, 2019 To provide a comprehensive understanding of the pressure fluctuation–vortex interaction in non-cavitation and cavitation flow, in this article, the unsteady flow in an ultra-low specific-speed centrifugal pump was investigated by numerical simulation ...
Cong Wang +5 more
doaj +1 more source
VORCOR: A computer program for calculating characteristics of wings with edge vortex separation by using a vortex-filament and-core model [PDF]
A computer code base on an improved vortex filament/vortex core method for predicting aerodynamic characteristics of slender wings with edge vortex separations is developed. The code is applicable to camber wings, straked wings or wings with leading edge
Lan, C. E., Mehrotra, S. C., Pao, J. L.
core +1 more source
Wind tunnel test results of a new leading edge flap design for highly swept wings, a vortex flap [PDF]
A leading edge flap design for highly swept wings, called a vortex flap, was tested on an arrow wing model in a low speed wind tunnel. A vortex flap differs from a conventional plain flap in that it has a leading edge tab which is counterdeflected from ...
Middleton, W. D. +2 more
core +1 more source
Vortex-Sheet Representation of Leading-Edge Vortex Shedding from Finite Wings
Journal of Aircraft, 2019 A characteristic feature of flows past many oscillating airfoils and wings is the leading-edge vortex (LEV).
Yoshikazu Hirato +3 more
openaire +1 more source
The Hydrodynamic Noise Suppression of a Scaled Submarine Model by Leading-Edge Serrations
Journal of Marine Science and Engineering, 2019 High hydrodynamic noise is a threat to the survival of underwater vehicles. We investigated a noise suppression mechanism by putting leading-edge serrations on the sail hull of a scaled SUBOFF model, through numerical calculation and an experimental test.
Yongwei Liu, Yalin Li, Dejiang Shang
doaj +1 more source
Computation of leading-edge vortex flows [PDF]
The simulation of the leading edge vortex flow about a series of conical delta wings through solution of the Navier-Stokes and Euler equations is studied. The occurrence, the validity, and the usefulness of separated flow solutions to the Euler equations
Newsome, R. W., Thomas, J. L.
core +1 more source
Free vorticity field-boundary layer conversions: Effect of boundary configuration and scale [PDF]
Progress was made on further flow visualization of vortex-leading edge interaction, in conjunction with characterization of the unsteady pressure field.
Gursul, I., Rockwell, D., Sohn, D.
core +1 more source
Effect of spanwise blowing on leading-edge vortex bursting of a highly swept aspect ratio 1.18 delta wing [PDF]
An investigation was conducted in the Langley 1/8-scale V/STOL model tunnel on a semispan delta wing with a leading-edge sweep of 74 deg, to determine the effectiveness of various locations of upper surface and reflection plane blowing on leading-edge ...
Gloss, B. B., Scantling, W. L.
core +1 more source
Vortex leading edge flap assembly for supersonic airplanes [PDF]
, 1997 A leading edge flap (16) for supersonic transport airplanes is disclosed. In its stowed position, the leading edge flap forms the lower surface of the wing leading edge up to the horizontal center of the leading edge radius.
Rudolph, Peter K. C.
core +1 more source