Results 11 to 20 of about 1,291,837 (284)

The comparison of aerodynamic and stability characteristics between conventional and blended wing body aircraft [PDF]

open access: yes, 2012
Aircraft with advanced wing geometry, like the flying wing or blended wing body configuration, seems to be the seed candidate of future aircraft. Compared with conventional aircraft, there are significant aerodynamic performance improvements because of ...
Wang, Faliang
core   +7 more sources

Effect of cross wind on aerodynamic coefficients of ground vehicles. [PDF]

open access: yes, 2009
The present work investigates the variation of aerodynamic coefficients with the change in the angle of flow. A mathematical equation has been developed for predicting the aerodynamic coefficients, when a vehicle is subjected to crosswind.
Malviya, Vihar   +2 more
core   +4 more sources

High Speed Marine Vehicles With Aerodynamic Surfaces: Development of a Dynamic Model for a Novel Configuration. [PDF]

open access: yes, 2008
A research programme on high speed marine vehicles fitted with aerodynamic surfaces started in Cranfield University in 2005. One of the configurations analyzed is a high speed prismatic planing hull with one or more aerodynamic surfaces; it is called ...
Patel, Minoo H.   +2 more
core   +7 more sources

Airfoil Aerodynamics in Proximity to Wavy Ground for a Wide Range of Angles of Attack

open access: yesApplied Sciences, 2020
Wing-in-ground craft often encounter waves when flying over the sea surface, and the ground effect is more complicated than that of flat ground. Therefore, the aerodynamic characteristics of the NACA 4412 airfoil in proximity to wavy ground for a wide ...
Haode Hu, Dongli Ma
doaj   +1 more source

Aerodynamic forces on high speed multi-hulled marine vehicles [PDF]

open access: yes, 2008
The need for high-speed high-payload craft has led to a considerable interest in vehicles capable of bridging the gap between conventional ships and aircraft. One such concept uses the forward motion of the craft to create aerodynamic forces on a wing-
Williams, A. G. W.
core   +7 more sources

Aerodynamic Layout Evaluation of Hydrogen-powered Fixed-wing Unmanned Aerial Vehicle(UAV) by Numerical Simulation

open access: yesTaiyuan Ligong Daxue xuebao, 2021
For the aerodynamic layout selection of a long-endurance hydrogen energy hybrid unmanned aerial vehicle(UAV), this paper carried out a numerical simulation of aerodynamic characteristics for a certain design plan, in order to provide data support for the
Haiping TIAN   +5 more
doaj   +1 more source

The Aerodynamic Characteristics of Steam Turbine Reaction Stages. (Aerodynamic Characteristics of Multistages).

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1991
The aerodynamic characteristics of reaction stages of a large steam turbine have been studied for the purpose of performance improvement. For the second step, the characteristics of the multistage with typical reaction bladings were studied by two-dimensional low-speed cascade tests and three-stage air turbine tests.
KURAMOTO, Yasuo   +4 more
openaire   +2 more sources

X-33 Hypersonic Aerodynamic Characteristics [PDF]

open access: yesJournal of Spacecraft and Rockets, 1999
Lockheed Martin Skunk works, under a cooperative agreement with NASA, will build and fly the X-33, a half-scale prototype of a rocket-based, single-stage-to-orbit (SSTO), reusable launch vehicle (RLV). A 0.007-scale model of the X-33 604B0002G configuration was tested in four hypersonic facilities at the NASA Langley Research Center to examine vehicle ...
Kelly Murphy   +4 more
openaire   +1 more source

Influence of wing kinematics on aerodynamic performance in hovering insect flight [PDF]

open access: yes, 2007
The influence of different wing kinematic models on the aerodynamic performance of a hovering insect is investigated by means of two-dimensional time-dependent Navier–Stokes simulations.
Bijl, H.   +8 more
core   +2 more sources

Numerical Simulation on Aerodynamics of Multi-Element Airfoil with Drooped Spoiler in Ground Effect

open access: yesXibei Gongye Daxue Xuebao, 2019
By using the finite volume method and k-ω SST turbulence model to solve the Reynolds Average Navier-Stokes equation and using the slipping wall to simulate the relative movement of the ground, the ground effect on the aerodynamic characteristic of multi ...

doaj   +1 more source

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