[HTML][HTML] Efficient assimilation of sparse data into RANS-based turbulent flow simulations using a discrete adjoint method

O Brenner, P Piroozmand, P Jenny - Journal of Computational Physics, 2022 - Elsevier
Turbulent flow simulations based on the Reynolds-averaged Navier–Stokes (RANS)
equations continue to be the workhorse approach for industrial flow problems. However, due …

Stabilization of the adjoint for turbulent flows

A Garai, SM Murman - AIAA Journal, 2021 - arc.aiaa.org
Traditional adjoint variables grow exponentially for turbulent chaotic flows. Most proposed
methods (for example. ensemble adjoint, shadow-based, and unstable-subspace-based …

Parameter Estimation for Reynolds-Averaged Navier–Stokes Models Using Approximate Bayesian Computation

OA Doronina, SM Murman, PE Hamlington - Aiaa Journal, 2021 - arc.aiaa.org
Approximate Bayesian computation (ABC) is used to estimate unknown parameter values,
as well as their uncertainties, in Reynolds-averaged Navier–Stokes (RANS) simulations of …

A Variational Data Assimilation Approach for Stationary Turbulent Flow Simulations

O Brenner - 2024 - research-collection.ethz.ch
Computational fluid dynamics based on the Reynolds-averaged Navier--Stokes (RANS)
equations provides a robust framework for analyzing complex flow phenomena at …

Parameter Estimation for RANS Models Using Approximate Bayesian Computation

OA Doronina, SM Murman, PE Hamlington - arXiv preprint arXiv …, 2020 - arxiv.org
We use approximate Bayesian computation (ABC) to estimate unknown parameter values,
as well as their uncertainties, in Reynolds-averaged Navier-Stokes (RANS) simulations of …

Turbulence Model Development Using Approximate Bayesian Computation

OA Doronina - 2020 - search.proquest.com
Turbulent flows are present in a wide variety of real-world engineering problems, often by
design due to their favorable mixing characteristics. At the same time, however, these flows …

Approximate Bayesian computation for parameter estimation in complex thermal-fluid systems

JD Christopher - 2018 - search.proquest.com
A major challenge in computational fluid dynamics (CFD) simulations of real-world flows is
the accurate assignment of boundary, initial, and geometric conditions, as well as fluid and …