Results 11 to 20 of about 4,786,029 (258)
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
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
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
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AIP Advances, 2022 Jet deflection rate is an essential index in the research of thrust vector control technology. The vectoring deflection of the jet is an unsteady flow.
Shaoqing Chi +3 more
doaj +1 more source
On the unsteady throttling dynamics and scaling analysis in a typical hypersonic inlet–isolator flow [PDF]
, 2020 The flow field in a two-dimensional three-ramp hypersonic mixed-compression inlet in a freestream Mach number of $M_\infty=5$ is numerically solved to understand the unsteady throttling dynamics.
K. Sekar +3 more
semanticscholar +1 more source
A superelement-based method for computing unsteady three-dimensional potential flows in hydraulic turbomachines [PDF]
, 1999 A numerical method is presented for the computation of unsteady, three-dimensional potential flows in hydraulic pumps and turbines. The superelement method has been extended in order to eliminate slave degrees of freedom not only from the governing ...
Esch, B.P.M. van +2 more
core +3 more sources
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
Study on Characteristics of an AC Sliding Discharge Plasma Actuator Operating at Different Pressures
Actuators, 2023 Dielectric barrier discharge (DBD) has been one of the most promising techniques for flow control, but the practical application needs a large plasma surface.
Qijie Sun +5 more
doaj +1 more source
Fractal model and Lattice Boltzmann Method for Characterization of Non-Darcy Flow in Rough Fractures. [PDF]
, 2017 The irregular morphology of single rock fracture significantly influences subsurface fluid flow and gives rise to a complex and unsteady flow state that typically cannot be appropriately described using simple laws.
Chang, Chun +4 more
core +1 more source