Reynolds number scaling of burning rates in spherical turbulent premixed flames

T Kulkarni, R Buttay, MH Kasbaoui, A Attili… - journal of fluid …, 2021 - cambridge.org
In the flamelet regime of turbulent premixed combustion the enhancement in the burning
rates originates primarily from surface wrinkling. In this work we investigate the Reynolds …

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 …

Modeling pressure effects on the turbulent burning velocity for lean hydrogen/air premixed combustion

Z Lu, Y Yang - Proceedings of the Combustion Institute, 2021 - Elsevier
We investigate and model pressure effects on the turbulent burning velocity over a range of
pressures and turbulence intensities with the direct numerical simulation (DNS) of …

Topological transition and helicity conversion of vortex knots and links

W Shen, J Yao, F Hussain, Y Yang - Journal of Fluid Mechanics, 2022 - cambridge.org
Topological transition and helicity conversion of vortex torus knots and links are studied
using direct numerical simulations of the incompressible Navier–Stokes equations. We find …

Modelling of the turbulent burning velocity based on Lagrangian statistics of propagating surfaces

J You, Y Yang - Journal of Fluid Mechanics, 2020 - cambridge.org
Modelling of the turbulent burning velocity based on Lagrangian statistics of propagating
surfaces Page 1 J. Fluid Mech. (2020), vol. 887, A11. c The Author(s), 2020. Published by …

[HTML][HTML] How “mixing” affects propagation and structure of intensely turbulent, lean, hydrogen-air premixed flames

HG Im, S Chaudhuri - Combustion and Flame, 2025 - Elsevier
Understanding how intrinsically fast hydrogen-air premixed flames can be rendered much
faster in turbulence is essential for the systematic development of hydrogen-based gas …

Area of scalar isosurfaces in homogeneous isotropic turbulence as a function of Reynolds and Schmidt numbers

KP Shete, SM de Bruyn Kops - Journal of Fluid Mechanics, 2020 - cambridge.org
A fundamental effect of fluid turbulence is turbulent mixing, which results in the stretching
and wrinkling of scalar isosurfaces. Thus, the area of isosurfaces is of interest in …

Influence of flow topology and scalar structure on flame-tangential diffusion in turbulent non-premixed combustion

W Han, A Scholtissek, F Dietzsch, R Jahanbakhshi… - Combustion and …, 2019 - Elsevier
Flamelet-based combustion models have been extensively used in the modeling of turbulent
non-premixed combustion due to their notable advantages in reducing computational cost …

Modeling the displacement speed in the flame surface density method for turbulent premixed flames at high pressures

S Zhang, Z Lu, Y Yang - Physics of Fluids, 2021 - pubs.aip.org
We propose a model of the local displacement speed for the large-eddy simulation (LES) of
turbulent premixed combustion with the flame surface density (FSD) method. This model …