Showing papers by "Peiqing Liu published in 2019"
TL;DR: In this paper, aeroacoustic and aerodynamic experiments are conducted to reveal the noise reduction mechanism of the helical cable technique on a single circular cylinder, where three-dimensional flow is promoted into the cylinder near wake, leading to suppression of two-dimensional vortex shedding process and flow fluctuations.
14 citations
TL;DR: The CFD results show that the aerodynamics performance of this smart high-lift system is more effective than the original NASA TrapWing model.
13 citations
TL;DR: In this article, aero-acoustic experiments were conducted on a two-dimensional, three-element high-lift configuration model, with a stowed flap, to understand the tonal noise characteristics of high lift configurations.
11 citations
TL;DR: In this article, the influence of both the initial kinetic energy to the surface tension energy of the drop as well as the initial film thickness on the energy conversion during the impact process is analyzed.
9 citations
TL;DR: In the traditional high-lift system design process, the aerodynamics optimization design and mechanism design are decoupled, which often introduces contradiction and trade-off between them.
Abstract: In the traditional high-lift system design process, the aerodynamics optimization design and mechanism design are decoupled, which often introduces contradiction and trade-off between them. In this...
8 citations
TL;DR: In this paper, a buffet breather is applied to the RAE2822 airfoil and Wing1 supercritical wing to prevent the shock foot bubble from merging with the trailing edge separation.
7 citations
20 May 2019
6 citations
TL;DR: In this paper, the interactions between a single vortex/co-rotating vortices and the ground were conducted in a water channel using particle image velocimetry (PIV) measurements.
Abstract: Experiments on the interactions between a single vortex/co-rotating vortices and the ground were conducted in a water channel using particle image velocimetry (PIV) measurements. Both the single vo...
5 citations
TL;DR: In this article, both experimental and numerical investigations are carried out on a two-dimensional high-lift configuration, with a stowed flap at varying incoming flow speeds (from 30 m/s to 60 m/m/s) to provide further understanding of the low to mid frequency tonal noise characteristics of the leading-edge slat in the processes of take-off and landing.
5 citations
12 Jul 2019
TL;DR: In this paper, the difference in aerodynamic forces of a two-dimensional flapping wing hovering in unbounded flow field and ground effect is studied and the unsteady laminar Navier-Stokes equations are solved by the solver.
Abstract: The difference in aerodynamic forces of a two-dimensional flapping wing hovering in unbounded flow field and ground effect is studied The unsteady laminar Navier–Stokes equations are solved by the
4 citations
20 May 2019
20 May 2019
07 Jan 2019
TL;DR: The multi-scale entropy and the conditional sampling are used to study the velocity increment in the boundary layer transition process and it is found that there is a process for both the laminar and turbulent part of the fluid motions to evolve into the mature state before the fully developed turbulence is reached.
20 May 2019
20 May 2019
20 May 2019