Results 1 to 10 of about 5,210,544 (313)
The performance and hydrodynamics in unsteady flow of a horizontal axis tidal turbine
Renewable Energy, 2019 This paper presents the effect of idealised unsteady tidal velocities on the performance of a newly-designed Horizontal-Axis Tidal Turbine (HATT) through the use of numerical simulations using Computational Fluid Dynamics (CFD). Simulations are conducted
Robert Howell, Binoe E Abuan
exaly +2 more sources
Numerical Study of Pressure Fluctuation and Unsteady Flow in a Centrifugal Pump
Processes, 2019 A pump is one of the most important machines in the processes and flow systems. The operation of multistage centrifugal pumps could generate pressure fluctuations and instabilities that may be detrimental to the performance and integrity of the pump.
Yong Zhu, Ling Zhou, Weidong Shi
exaly +2 more sources
Renewable Energy, 2018 This article reports the fluid-dynamical analyses of unsteady flow in the first stage of a multistage pump-turbine where hump instability occurs. This stage can be seen as a centrifugal pump with multistage guide vanes in pump mode.
Giorgio Pavesi
exaly +2 more sources
气体物理, 2023 Based on the gas kinetic scheme (GKS), numerical simulation research on the thermal protection system with the spike was carried out from the independent flow field and the fluid-structure interaction. The reliability of the algorithm in independent flow
Chang-ya LIU +3 more
doaj +1 more source
Suppressing Uncommanded Roll-Yaw Motion by Jet Flow Control Based on Reinforcement Learning
International Journal of Aerospace Engineering, 2023 The suppression of uncommanded motion of aircraft at high angles of attack (α) is a research topic of continuous concern in the aviation field. Aiming at the suppression of uncommanded roll-yaw motion of a canard aircraft at high angles of attack, an ...
Yizhang Dong +3 more
doaj +1 more source
A Numerical Investigation of Supersonic Combustion Flow Control by Nanosecond-Pulsed Actuations
Energies, 2023 The efficiency of supersonic combustion is largely dependent on inlet and injection parameters. Additional energy input is required in some off-design conditions, and nanosecond discharge actuation can be a solution.
Yilun Yan +3 more
doaj +1 more source
Investigation of Aeroelasticity Effect on Missile Separation from the Internal Bay
International Journal of Aerospace Engineering, 2023 There is a strong aerodynamic interference when launching the missile in the embedded mode. During the separation process, the carrier aircraft safety may be threatened due to large slenderness ratio, low structural stiffness, and aeroelasticity effects ...
Shuling Tian, Rongjie Li, Ke Xu
doaj +1 more source
Entropy, 2022 One major problem in the development of hypersonic vehicles is severe aerodynamic heating; thus, the implementation of a thermal protection system is required.
Di Zhou +4 more
doaj +1 more source
International Journal of Antennas and Propagation, 2022 Radar antennas in the open air are affected by dynamic wind loading during azimuthal scanning. In this state, the acquisition and prediction of the aerodynamic load is the focus of the structure design for the antenna.
Yanqi Zhang, Zhaoming Zhang
doaj +1 more source
Aerodynamic Characteristics of Radar Antenna in Stationary and Azimuthal Rotational Motion
International Journal of Antennas and Propagation, 2021 To study the effects of aerodynamic loads on the aerodynamic characteristics of stationary and azimuthally rotating antennas, wind tunnel force tests are conducted using solid and porous plate antennas.
Yanqi Zhang, Zhaoming Zhang
doaj +1 more source