Turbulence modeling in the age of data
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 …
calibrate simple engineering models such as those based on the Reynolds-averaged Navier …
Quantification of model uncertainty in RANS simulations: A review
In computational fluid dynamics simulations of industrial flows, models based on the
Reynolds-averaged Navier–Stokes (RANS) equations are expected to play an important …
Reynolds-averaged Navier–Stokes (RANS) equations are expected to play an important …
[HTML][HTML] Explore missing flow dynamics by physics-informed deep learning: The parameterized governing systems
Gaining and understanding flow dynamics have much importance in a wide range of
disciplines, eg, astrophysics, geophysics, biology, mechanical engineering, and biomedical …
disciplines, eg, astrophysics, geophysics, biology, mechanical engineering, and biomedical …
Sparse Bayesian learning of explicit algebraic Reynolds-stress models for turbulent separated flows
Abstract A novel Sparse Bayesian Learning (SBL) framework is introduced for generating
stochastic Explicit Algebraic Reynolds Stress (EARSM) closures for the Reynolds-Averaged …
stochastic Explicit Algebraic Reynolds Stress (EARSM) closures for the Reynolds-Averaged …
[HTML][HTML] A probabilistic, data-driven closure model for RANS simulations with aleatoric, model uncertainty
We propose a data-driven, closure model for Reynolds-averaged Navier-Stokes (RANS)
simulations that incorporates aleatoric, model uncertainty. The proposed closure consists of …
simulations that incorporates aleatoric, model uncertainty. The proposed closure consists of …
[HTML][HTML] Dimensionality reduction for regularization of sparse data-driven RANS simulations
Data assimilation can reduce the model-form errors of RANS simulations. A spatially
distributed corrective parameter field can be introduced into the closure model, whose …
distributed corrective parameter field can be introduced into the closure model, whose …
Regularized ensemble Kalman methods for inverse problems
Inverse problems are common and important in many applications in computational physics
but are inherently ill-posed with many possible model parameters resulting in satisfactory …
but are inherently ill-posed with many possible model parameters resulting in satisfactory …
CFD-driven symbolic identification of algebraic Reynolds-stress models
IBH Saïdi, M Schmelzer, P Cinnella, F Grasso - Journal of Computational …, 2022 - Elsevier
A CFD-driven deterministic symbolic identification algorithm for learning explicit algebraic
Reynolds-stress models (EARSM) from high-fidelity data is developed building on the frozen …
Reynolds-stress models (EARSM) from high-fidelity data is developed building on the frozen …
Quantification of Reynolds-averaged-Navier–Stokes model-form uncertainty in transitional boundary layer and airfoil flows
It is well known that the Boussinesq turbulent-viscosity hypothesis can introduce uncertainty
in predictions for complex flow features such as separation, reattachment, and laminar …
in predictions for complex flow features such as separation, reattachment, and laminar …
Evaluation of machine learning algorithms for predictive Reynolds stress transport modeling
The application of machine learning (ML) algorithms to turbulence modeling has shown
promise over the last few years, but their application has been restricted to eddy viscosity …
promise over the last few years, but their application has been restricted to eddy viscosity …