Physics of turbulence generation and sustenance in a boundary layer
In this paper, a systematic report of our recent DNS study on physics of late boundary layer
transition is presented. This includes mechanism of the large coherent vortex structure …
transition is presented. This includes mechanism of the large coherent vortex structure …
Transition-based constrained large-eddy simulation method with application to an ultrahigh-lift low-pressure turbine cascade flow
X Wang, Z Xiao - Journal of Fluid Mechanics, 2022 - cambridge.org
A transition-predictive Reynolds-averaged Navier–Stokes (RANS) model is introduced as
the Reynolds controlling condition to constrained large-eddy simulation (TrCLES) to improve …
the Reynolds controlling condition to constrained large-eddy simulation (TrCLES) to improve …
[图书][B] Liutex and its applications in turbulence research
Liutex and Its Applications in Turbulence Research reviews the history of vortex definition,
provides an accurate mathematical definition of vortices, and explains their applications in …
provides an accurate mathematical definition of vortices, and explains their applications in …
Correlation analysis on volume vorticity and vortex in late boundary layer transition
X Dong, S Tian, C Liu - Physics of Fluids, 2018 - pubs.aip.org
In this paper, two functions are introduced to describe the turbulence generation in late flow
transition. One is called the volume omega bar (volume Ω), which represents the flow …
transition. One is called the volume omega bar (volume Ω), which represents the flow …
Evolution of material surfaces in the temporal transition in channel flow
We report a Lagrangian study on the evolution of material surfaces in the Klebanoff-type
temporal transitional channel flow. Based on the Eulerian velocity field from the direct …
temporal transitional channel flow. Based on the Eulerian velocity field from the direct …
Study on vorticity structures in late flow transition
X Dong, G Dong, C Liu - Physics of Fluids, 2018 - pubs.aip.org
A focus is presented on the investigation of vorticity generation and development and the
vorticity structures inside/outside of a vortex. A vortex cannot be directly represented only by …
vorticity structures inside/outside of a vortex. A vortex cannot be directly represented only by …
[HTML][HTML] New visualization method for vortex structure in turbulence by lambda2 and vortex filaments
In this paper, a new visualization method for vortex structure is presented. Several widely
used techniques for local vortex visualization in turbulent flows are reviewed and compared …
used techniques for local vortex visualization in turbulent flows are reviewed and compared …
Physics of multiple level hairpin vortex structures in turbulence
Previous experimental and numerical studies have revealed that the hairpin vortex is a basic
flow element of transitional boundary layer. The hairpin vortex is believed to have legs …
flow element of transitional boundary layer. The hairpin vortex is believed to have legs …
Direct numerical simulation of vortex structures during the late stage of the transition process in a compressible mixing layer
The paper describes the direct numerical simulation (DNS) of a spatially developing
compressible mixing layer with a convective Mach number of 0.8. The work mainly studies …
compressible mixing layer with a convective Mach number of 0.8. The work mainly studies …
Liutex core line and POD analysis on hairpin vortex formation in natural flow transition
In this study, the new method of the vortex core line based on Liutex definition, also known
as Liutex core line, is applied to support the hypothesis that the vortex ring is not a part of the …
as Liutex core line, is applied to support the hypothesis that the vortex ring is not a part of the …