Physics and modeling of large flow disturbances: discrete gust encounters for modern air vehicles
Gusts of moderate and large magnitude induce flow separation and other complexities when
they interact with the lifting surfaces of air vehicles. The presence of these nonlinear gusts …
they interact with the lifting surfaces of air vehicles. The presence of these nonlinear gusts …
Review of rotating wing dynamic stall: Experiments and flow control
Dynamic stall has been a technical challenge and a fluid dynamical subject of interest for
more than fifty years; but in the last decade significant advances have been made in the …
more than fifty years; but in the last decade significant advances have been made in the …
[HTML][HTML] The dynamics and timescales of static stall
Airfoil stall plays a central role in the design of safe and efficient lifting surfaces. We typically
distinguish between static and dynamic stall based on the unsteady rate of change of an …
distinguish between static and dynamic stall based on the unsteady rate of change of an …
Unsteady flow generation in a wind tunnel using an active grid
A Azzam, P Lavoie - Experiments in Fluids, 2023 - Springer
Unsteady flows are pervasive in nature and engineering applications, such as unmanned
aerial vehicles and wind turbines. Simulating these flows in an experimental setting is …
aerial vehicles and wind turbines. Simulating these flows in an experimental setting is …
Transverse gust generation in a wind tunnel: a suction-driven approach
Abstract The Andrew Fejer Unsteady Wind Tunnel was modified to add a suction duct on top
of the test section to generate a vertical velocity component (cross flow). The suction …
of the test section to generate a vertical velocity component (cross flow). The suction …
Study on the performance of detection air duct and evaluation index of agricultural cleaning centrifugal fans
Z Ma, Y Zhu, J Li, Z Song, J Yu, Y Li, L Xu - Biosystems Engineering, 2024 - Elsevier
Agricultural centrifugal fans play a pivotal role in agricultural machinery, particularly in the
context of combine harvesters. The performance of these fans significantly impacts the …
context of combine harvesters. The performance of these fans significantly impacts the …
How to design a 2D active grid for dynamic inflow modulation
TTB Wester, J Krauss, L Neuhaus, A Hölling… - Flow, Turbulence and …, 2022 - Springer
In free-field operation, many aerodynamic systems are confronted with changing turbulent
inflow conditions. Wind turbines are a prominent example. Here, the rotation of the rotor …
inflow conditions. Wind turbines are a prominent example. Here, the rotation of the rotor …
Impact of streamwise gusts on the aerodynamic performance of a finite-span wing
View Video Presentation: https://doi. org/10.2514/6.2022-0331. vid The impact of streamwise
gusts or surging flow on the aerodynamic performance of a NACA 0015, finite-span wing …
gusts or surging flow on the aerodynamic performance of a NACA 0015, finite-span wing …
Aerodynamic Performance of a Finite-Span Wing in a Time-Varying Freestream
The current study analyzes the dynamic response of a NACA 0015 finite-span wing to a time-
varying freestream in an unsteady wind tunnel at a mean Reynolds number of 1.0× 10 5 …
varying freestream in an unsteady wind tunnel at a mean Reynolds number of 1.0× 10 5 …
Unsteady Pressure Gradients in Wind Tunnels with Time-Varying Freestreams
SYSTEMS operating within the atmospheric boundary layer fre-quently encounter gusts [1].
Gusts introduce unsteadiness at timescales and velocities similar to the operating conditions …
Gusts introduce unsteadiness at timescales and velocities similar to the operating conditions …