Geometry and interaction of structures in homogeneous isotropic turbulence

T Leung, N Swaminathan, PA Davidson - Journal of Fluid Mechanics, 2012 - cambridge.org
A strategy to extract turbulence structures from direct numerical simulation (DNS) data is
described along with a systematic analysis of geometry and spatial distribution of the …

Genesis and evolution of premixed flames in turbulence

HL Dave, A Mohan, S Chaudhuri - Combustion and Flame, 2018 - Elsevier
Flames interacting with turbulence are continuously generated and annihilated by stretching
and folding processes over a range of length-scales and time-scales. In this paper, we …

[图书][B] The Kolmogorov-Obukhov Theory of Turbulence: A mathematical theory of turbulence

B Birnir - 2013 - books.google.com
​​​​​​​ Turbulence is a major problem facing modern societies. It makes airline
passengers return to their seats and fasten their seatbelts but it also creates drag on the …

Identifying the tangle of vortex tubes in homogeneous isotropic turbulence

S Xiong, Y Yang - Journal of Fluid Mechanics, 2019 - cambridge.org
We extend the vortex-surface field (VSF), whose isosurface is a vortex surface consisting of
vortex lines, to identify vortex tubes and sheets in homogeneous isotropic turbulence. The …

Direct numerical simulation of droplet breakup in homogeneous isotropic turbulence: The effect of the Weber number

C Shao, K Luo, Y Yang, J Fan - International Journal of Multiphase Flow, 2018 - Elsevier
We report the direct numerical simulation of droplet breakup in forced homogeneous
isotropic turbulence with a mass-conserving level set method. In particular, the effect of the …

Detailed numerical simulation of swirling primary atomization using a mass conservative level set method

C Shao, K Luo, Y Yang, J Fan - International Journal of Multiphase Flow, 2017 - Elsevier
We report detailed numerical simulations of swirling liquid atomization. A recently developed
mass conservative level set method is employed to capture the gas–liquid interface and a …

Influence of combustion on principal strain-rate transport in turbulent premixed flames

AM Steinberg, B Coriton, JH Frank - Proceedings of the Combustion …, 2015 - Elsevier
The transport of principal strain-rates (si) was experimentally investigated using high-
repetition-rate (10 kHz) tomographic particle image velocimetry (T-PIV) and OH planar laser …

Pressure-gradient tailoring effects on the turbulent flame-vortex dynamics of bluff-body premixed flames

MK Geikie, KA Ahmed - Combustion and Flame, 2018 - Elsevier
This paper explores the effects of pressure-gradient tailoring on the turbulent flame and
vorticity generation mechanisms of premixed flames. A turbulent premixed flame stabilized …

Construction of knotted vortex tubes with the writhe-dependent helicity

S Xiong, Y Yang - Physics of Fluids, 2019 - pubs.aip.org
We propose a feasible method for constructing knotted vortex tubes with the finite thickness
and arbitrary complexity and develop an accurate algorithm to implement this method in …

In-situ flame particle tracking based on barycentric coordinates for studying local flame dynamics in pulsating Bunsen flames

T Zirwes, F Zhang, Y Wang, P Habisreuther… - Proceedings of the …, 2021 - Elsevier
Flame particles (FP) are massless, virtual particles which follow material points on the flame
surface. This work presents a tracking algorithm for FPs which utilizes barycentric …