Deep learning at scale for subgrid modeling in turbulent flows: regression and reconstruction

M Bode, M Gauding, K Kleinheinz, H Pitsch - International Conference on …, 2019 - Springer
Modeling of turbulent flows is still challenging. One way to deal with the large scale
separation due to turbulence is to simulate only the large scales and model the unresolved …

Finite Reynolds Number Effect on Small-Scale Statistics in Decaying Grid Turbulence

S Tang, L Danaila, RA Antonia - Atmosphere, 2024 - mdpi.com
Since about 1997, the realisation that the finite Reynolds number (FRN) effect needs to be
carefully taken into account when assessing the behaviour of small-scale statistics came to …

Structure of iso-scalar sets

M Gauding, F Thiesset, E Varea… - Journal of Fluid …, 2022 - cambridge.org
An analytical framework is proposed to explore the structure and kinematics of iso-scalar
fields. It is based on a two-point statistical analysis of the phase indicator field which is used …

Higher-order statistics and intermittency of a two-fluid Hall–Vinen–Bekharevich–Khalatnikov quantum turbulent flow

Z Zhang, I Danaila, E Lévêque… - Journal of Fluid …, 2023 - cambridge.org
The Hall–Vinen–Bekharevich–Khalatnikov (HVBK) model is widely used to numerically
study quantum turbulence in superfluid helium. Based on the two-fluid model of Tisza and …

On the self-similarity of line segments in decaying homogeneous isotropic turbulence

M Gauding, L Wang, JH Goebbert, M Bode, L Danaila… - Computers & …, 2019 - Elsevier
The self-similarity of a passive scalar in homogeneous isotropic decaying turbulence is
investigated by the method of line segments (M. Gauding et al., Physics of Fluids 27.9 …

Towards prediction of turbulent flows at high reynolds numbers using high performance computing data and deep learning

M Bode, M Gauding, JH Göbbert, B Liao… - … Conference on High …, 2018 - Springer
In this paper, deep learning (DL) methods are evaluated in the context of turbulent flows.
Various generative adversarial networks (GANs) are discussed with respect to their …

Modelling the transport equation of the scalar structure function

L Djenidi, RA Antonia, SL Tang - Journal of Fluid Mechanics, 2022 - cambridge.org
Modelling the transport equation of the scalar structure function Page 1 J. Fluid Mech. (2022),
vol. 946, A42, doi:10.1017/jfm.2022.632 Modelling the transport equation of the scalar structure …

New scaling laws of passive scalar with a constant mean gradient in decaying isotropic turbulence

H Sadeghi, M Oberlack - Journal of Fluid Mechanics, 2020 - cambridge.org
We use the Lie symmetry theory to derive new scaling laws for passive scalar dynamics
under the influence of a constant mean gradient of the scalar in decaying homogeneous …

On the combined effect of internal and external intermittency in turbulent non-premixed jet flames

M Gauding, M Bode, D Denker, Y Brahami… - Proceedings of the …, 2021 - Elsevier
This paper analyzes the combined effect of internal intermittency and external intermittency
on the dynamics of small-scale turbulent mixing in a turbulent non-premixed jet flame. The …

One-point and two-point statistics of homogeneous isotropic decaying turbulence with variable viscosity

M Gauding, L Danaila, E Varea - International Journal of Heat and Fluid …, 2018 - Elsevier
The decay of homogeneous isotropic turbulence in a variable viscosity fluid with a viscosity
ratio up to 15 is analyzed by means of highly resolved direct numerical simulations (DNS) at …