Results 11 to 20 of about 126,359 (234)
Modeling of Unsteady Aerodynamic Loads [PDF]
AIAA Atmospheric Flight Mechanics Conference, 2011 Time-accurate solutions of the Euler or Navier-Stokes equations are still nowadays a computationally expensive approach for applications where a magnitude of parameters has to be investigated. This work focuses on flight dynamics-related studies. The generation of several low-order models for the evaluation of unsteady and non-linear aerodynamic loads ...
Da Ronch, A. +4 more
openaire +2 more sources
Numerical study of the unsteady aerodynamics of helicopter rotor aerofoils
, 1999 A two-dimensional model of the aerodynamics of rotor blades in forward flight is proposed in which the motion of the blade is represented by periodical variations of the freestrearn velocity and incidence. A novel implicit methodology for the solution
Shaw, Scott
core +7 more sources
, 2008 Transient disturbances concerning ground vehicles are not only due to rail or road irregularities but are also caused by unsteady ambient wind conditions.
Efraimsson, Gunilla, +2 more
core +8 more sources
Aerodynamics simulations of ground vehicles in unsteady crosswind [Elektronisk resurs]
, 2011 Ground vehicles, both on roads or on rail, are sensitive to crosswinds and the handling, travelling speeds or in some cases, safety can be affected.
Efraimsson, Gunilla, +2 more
core +9 more sources
Numerical Research on the NS-SDBD Control of a Hypersonic Inlet in Off-Design Mode
Aerospace, 2022 The overall performance of a scramjet inlet will decline while entering off-design mode. Active flow control using nanosecond surface dielectric barrier discharge (NS-SDBD) can be a novel solution to such inlet–unstart problems.
Yilun Yan, Jiangfeng Wang
doaj +1 more source
Applied Sciences, 2021 Dynamic stall in clean air flow has been well studied, but its exploration in air–particle (air–raindrop or air–sand) flow is still lacking. The aerodynamic performance loss of aircraft (NACA0012) and wind turbine (S809) airfoils and their differences ...
Junjun Jin +4 more
doaj +1 more source
The Influence of Gas Models on Numerical Simulations of Cryogenic Flow
Aerospace, 2023 At cryogenic temperatures, gases exhibit significant deviations from ideal behaviour, and the commonly employed gas model may inadequately represent the thermodynamic properties of cryogenic gases, subsequently impacting numerical simulations using ...
Ruifan Hu +3 more
doaj +1 more source
Marking function of Stokes number on airfoils’ aerodynamic penalties in a gas–solid flow
IET Renewable Power Generation, 2021 This paper aims to employ the Stokes number to mark aerodynamic penalties of airfoils caused by particles, which is crucial to implement their scaling experiments in a gas‐solid flow.
Junjun Jin +4 more
doaj +1 more source
AIP Advances, 2023 Previous attempts at active flutter suppression have been based on driving the deflection of multiple pairs of discontinuous mechanical control surfaces.
Zhen Chen +4 more
doaj +1 more source
Longitudinal flight dynamics modeling and a flight stability analysis of a monocopter
AIP Advances, 2022 A monocopter, which is a biology-inspired aircraft based on the samara, has been proved to have passive flight stability. However, due to the asymmetry of its configurations and the constant rotation during flight, its flight dynamics equation is complex.
Shengxiang Tong +3 more
doaj +1 more source