Direct numerical simulations of turbulent viscoelastic jets

MC Guimarães, N Pimentel, FT Pinho… - Journal of Fluid …, 2020 - cambridge.org
Direct numerical simulations (DNS) of spatially evolving turbulent planar jets of viscoelastic
fluids described by the FENE-P model, such as those consisting of a Newtonian fluid solvent …

Lie symmetry analysis and invariant solutions of 3D Euler equations for axisymmetric, incompressible, and inviscid flow in the cylindrical coordinates

R Sadat, P Agarwal, R Saleh, MR Ali - Advances in Difference Equations, 2021 - Springer
Through the Lie symmetry analysis method, the axisymmetric, incompressible, and inviscid
fluid is studied. The governing equations that describe the flow are the Euler equations …

Self-similarity of turbulent jet flows with internal and external intermittency

M Gauding, M Bode, Y Brahami, É Varea… - Journal of Fluid …, 2021 - cambridge.org
The combined effect of internal and external intermittency on the statistical properties of
small-scale turbulence is investigated in temporally evolving, planar turbulent jet flows at …

Characteristics of small-scale shear layers in a temporally evolving turbulent planar jet

M Hayashi, T Watanabe, K Nagata - Journal of Fluid Mechanics, 2021 - cambridge.org
Characteristics of small-scale shear layers are studied with direct numerical simulations of a
temporally evolving turbulent planar jet. The shear layers that internally exist in turbulence …

Statistically invariant eddy viscosity models

D Klingenberg, M Oberlack - Physics of Fluids, 2022 - pubs.aip.org
We presently generalize existing two-equation Reynolds-averaged Navier–Stokes models
by using recent advances in our understanding of the Lie symmetries of governing …

Symmetries and turbulence modeling

D Klingenberg, M Oberlack, D Pluemacher - Physics of Fluids, 2020 - pubs.aip.org
This work applies new insights into turbulent statistics gained by Lie symmetry analysis to
the closure problem of turbulence. Founded in the mathematics of partial differential …

New symmetry-induced scaling laws of passive scalar transport in turbulent plane jets

H Sadeghi, M Oberlack, M Gauding - Journal of Fluid Mechanics, 2021 - cambridge.org
The primary object of this study is to derive new scaling laws for passive scalar statistical
quantities in temporally and spatially evolving plane turbulent jet flows. We apply Lie …

A computational study of the influence of evaporation and molecular transport on temporally-evolving droplet-laden plane jets

LAC Carrasco, Z Bouali, A Mura - International Journal of Multiphase Flow, 2023 - Elsevier
Numerical simulations of temporally-evolving droplet-laden plane jets are performed in
conditions relevant to rocket main engines fed with liquid oxygen (LOx) and gaseous …

Temporal evolution of the turbulence interface of a turbulent plane jet

Y Xie, X Zhang, XL Xiong, Y Zhou - Journal of Fluid Mechanics, 2024 - cambridge.org
Direct numerical simulations are performed to explore the evolution behaviour of the
turbulent/non-turbulent interface (TNTI) in a temporally evolving turbulent plane jet, using the …

Validation of symmetry-induced high moment velocity and temperature scaling laws in a turbulent channel flow

F Alcántara-Ávila, LM García-Raffi, S Hoyas… - Physical Review E, 2024 - APS
The symmetry-based turbulence theory has been used to derive new scaling laws for the
streamwise velocity and temperature moments of arbitrary order. For this, it has been …