Turbulence modeling in the age of data

K Duraisamy, G Iaccarino, H **ao - Annual review of fluid …, 2019 - annualreviews.org
Data from experiments and direct simulations of turbulence have historically been used to
calibrate simple engineering models such as those based on the Reynolds-averaged Navier …

Quantification of model uncertainty in RANS simulations: A review

H **ao, P Cinnella - Progress in Aerospace Sciences, 2019 - Elsevier
In computational fluid dynamics simulations of industrial flows, models based on the
Reynolds-averaged Navier–Stokes (RANS) equations are expected to play an important …

An interpretable framework of data-driven turbulence modeling using deep neural networks

C Jiang, R Vinuesa, R Chen, J Mi, S Laima, H Li - Physics of Fluids, 2021 - pubs.aip.org
Reynolds-averaged Navier–Stokes simulations represent a cost-effective option for practical
engineering applications, but are facing ever-growing demands for more accurate …

Feature selection and processing of turbulence modeling based on an artificial neural network

Y Yin, P Yang, Y Zhang, H Chen, S Fu - Physics of Fluids, 2020 - pubs.aip.org
Data-driven turbulence modeling has been considered an effective method for improving the
prediction accuracy of Reynolds-averaged Navier–Stokes equations. Related studies aimed …

Conditioning and accurate solutions of Reynolds average Navier–Stokes equations with data-driven turbulence closures

BP Brener, MA Cruz, RL Thompson… - Journal of Fluid …, 2021 - cambridge.org
The possible ill conditioning of the Reynolds average Navier–Stokes (RANS) equations
when an explicit data-driven Reynolds stress tensor closure is employed is a discussion of …

Data-driven quantification of model-form uncertainty in Reynolds-averaged simulations of wind farms

A Eidi, N Zehtabiyan-Rezaie, R Ghiassi, X Yang… - Physics of …, 2022 - pubs.aip.org
Computational fluid dynamics using the Reynolds-averaged Navier–Stokes (RANS) remains
the most cost-effective approach to study wake flows and power losses in wind farms. The …

A data assimilation model for wall pressure-driven mean flow reconstruction

S Li, C He, Y Liu - Physics of Fluids, 2022 - pubs.aip.org
This study establishes a continuous adjoint data assimilation model (CADA) for the
reproduction of global turbulent mean flow from a limited number of wall pressure …

Uncertainty estimation module for turbulence model predictions in SU2

AA Mishra, J Mukhopadhaya, G Iaccarino, J Alonso - AIAA Journal, 2019 - arc.aiaa.org
With the advent of improved computational resources, aerospace design has shifted from a
testing-based process to a simulation-driven procedure, wherein uncertainties in design and …

The use of the Reynolds force vector in a physics informed machine learning approach for predictive turbulence modeling

MA Cruz, RL Thompson, LEB Sampaio, RDA Bacchi - Computers & Fluids, 2019 - Elsevier
Data-driven turbulence modeling is receiving considerable attention specially when Direct
Numerical Simulations (DNS) are the physics-informed learning environment and Reynolds …

[HTML][HTML] A probabilistic, data-driven closure model for RANS simulations with aleatoric, model uncertainty

A Agrawal, PS Koutsourelakis - Journal of Computational Physics, 2024 - Elsevier
We propose a data-driven, closure model for Reynolds-averaged Navier-Stokes (RANS)
simulations that incorporates aleatoric, model uncertainty. The proposed closure consists of …