Results 11 to 20 of about 123,614 (247)
Unsteady-state models of gas absorption columns [PDF]
, 1969 The unsteady-state equations for a plate gas absorption column are formulated. The equations take into account imperfect plate efficiencies and liquid flow changes. Transfer-function and state-variable models of the column are derived.
Francis P. Lees (7123484)
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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
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International Journal of Turbomachinery, Propulsion and Power, 2021 Body force models of fans and compressors are widely employed for predicting performance due to the reduction in computational cost associated with their use, particularly in nonuniform inflows.
Syamak Pazireh, Jeffrey J. Defoe
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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
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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
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Experimental analysis of the pressure–velocity correlations of external unsteady flow over rocket launchers [PDF]
, 2013 Based on simultaneous wall pressure and velocity measurements, the aerodynamic load of a launcher body model is investigated. Two different configurations are considered in order to study the influence of geometrical artifacts on the after body flow and ...
DRUAULT, Philippe +7 more
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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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Investigation of thrust vector angle control law based on micro-turbojet engine
AIP Advances, 2022 The fluid thrust vectoring nozzle has a fixed profile, few moving parts, and lightweight structure, providing effective flight control for high maneuvering aircraft. The nonlinear control law of the jet deflection angle is one of the critical problems of
Shaoqing Chi +3 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
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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
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