579 citations · 952 across the 24 of their papers we have counts for
8 papers · 1 filter
DNS Study on Physics of Late Boundary Layer Transition
Chaoqun Liu, Ping Lu
This paper serves as a review of our recent new DNS study on physics of late boundary layer transition. This includes mechanism of the large coherent vortex structure formation, sm…
DNS Study for the origin of the flow Randomization in Late Boundary Layer Transition
Manoj Thapa, Ping Lu, Chaoqun Liu
This paper is devoted to the investigation of the origin and mechanism of randomization in late boundary layer transition over a flat plate without pressure gradient. The flow rand…
Numerical Study on Mechanism of Small Vortex Generation in Boundary Layer Transition
Ping Lu, Chaoqun Liu
The small vortex generation is a key issue of the mechanism for late flow transition and turbulence generation. It was widely accepted that small length vortices were generated by…
Numerical and Experimental Studies on the Separation Topology of the MVG Controlled Flow at M=2.5
Qin Li, Yonghua Yan, Ping Lu +3
In this paper, the implicitly implemented LES method and fifth order bandwidth optimized WENO scheme are used to make comprehensive studies on the separation topology of the MVG co…
LES Study on the Mechanism of Vortex Rings behind Supersonic MVG with Turbulent Inflow
Yonghua Yan, Caixia Chen, Ping Lu +1
In this study, we investigate the interaction between vortex rings behind MVG and the oblique shocks in the MVG controlled ramp flow at M=2.5 and Req=5760. Implicit large eddy simu…
Improvement of Mixing Function for Modified Upwinding Compact Scheme
Huankun Fu, Ping Lu, Chaoqun Liu
The compact scheme has high order accuracy and high resolution, but cannot be used to capture the shock. WENO is a great scheme for shock capturing, but is too dissipative for turb…
Numerical Study on Randomization in Late Boundary Layer Transition
Ping Lu, Manoj Thapa, Chaoqun Liu
The mechanism of randomization in late boundary layer transition is a key issue of late boundary layer transition and turbulence theory. We studied the mechanism carefully by high…
Numerical Study on Mechanism of Multiple Rings Formation
Ping Lu, Yonghua Yan, Chaoqun Liu
In this paper, the flow around each ring-like vortex is investigated by high order DNS including first sweep, first ejection, second sweep, second ejection, positive spike, momentu…