Tuning of Generalized K-Omega Turbulence Model by Using Adjoint Optimization and Machine Learning for Gas Turbine Combustor Applications

G Klavaris, M Xu, C Hill, F Menter… - … for Gas Turbines …, 2024 - asmedigitalcollection.asme.org
… In this study, the GEKO model is used for simulating RANS predictions of turbulence in a …
via gradient-based optimization using the Adjoint solver in Ansys Fluent. Machine learning (ML) …

Tuning of Generalized K-Omega Turbulence Model by Using Adjoint Optimization and Machine Learning for Gas Turbine Combustor Applications

G Klavaris, M Xu, C Hill, F Menter… - … for Gas Turbines …, 2024 - asmedigitalcollection.asme.org
… In this study, the GEKO model is used for simulating RANS predictions of turbulence in a …
gradient-based optimization using the Adjoint solver in ansysfluent. Machine learning via neural …

Tuning of Generalized K-Omega Turbulence Model by Using Adjoint Optimization and Machine Learning for Gas Turbine Combustor Applications

G Klavaris, M Xu, S Patwardhan… - … Expo: Power for …, 2023 - asmedigitalcollection.asme.org
adjoint optimization to tune the free coefficients of the GEKO [30] turbulence model by using
Using an offline training strategy, they applied machine learning based on Neural Network …

Adjoint-based model tuning and machine learning strategy for turbulence model improvement

H Wu, H Zhou, S Xu, C Ren, Q Chen, T Jadhav - 2022 - sae.org
… in turbulence model optimization. Hence, this study indicated the promising potential of …
the general workflow of GEKO optimization in this study, which includes the coupling of adjoint

An open-source adjoint-based field inversion tool for data-driven RANS modelling

O Bidar, P He, S Anderson, N Qin - AIAA aviation 2022 forum, 2022 - arc.aiaa.org
tuned based on limited set of canonical flows); functional errors due to the mathematical
formulation of the turbulence model … These include: novel machine learning architectures with …

Aerodynamic shape optimisation using a machine learning-augmented turbulence model

O Bidar, P He, S Anderson, N Qin - AIAA SCITECH 2024 Forum, 2024 - arc.aiaa.org
… arising from the turbulence model constants tuned on a limited … , the corrective fields must
be generalised in terms of non-… inverse modelling (an adjoint-based optimisation where the …

Aerodynamic Performance Prediction of a Car Using GEKO Turbulence Model and Application of Gradient Based Optimisation for Improving Aerodynamic Drag

T Patil, V Patil - 2021 - sae.org
… revolutionary turbulence model, GEKO (GEneralized K-Omega)… of Gradient Based Optimisation
(GBO) using adjoint solver in … GEKO turbulence model was used with tuning provided for …

Continuous Adjoint to Proudman's Formula for Aeroacoustic Shape Optimization

ME Farhikhteh, EM Papoutsis-Kiachagias… - Available at SSRN … - papers.ssrn.com
… includes the adjoint to the k − ω SST turbulence model. Here, … equipment and extensive
measurements. As a result, aeroacoustic … The tuning process will be guided by acoustic …

[PDF][PDF] Hydrodynamic optimization using CFD methodologies with open-source software

A Kourtis - 2023 - dspace.lib.ntua.gr
… which then trained the machine learning model and created a … into a manipulable volume by
adjusting the points located on … can be assessed or even the adjoint method. In addition, the …

Adjoint-Based Optimization for the Venturi Mixer of A Burner

M Xu, A Radwan, Y Xia - … of Engineering for …, 2024 - asmedigitalcollection.asme.org
… is a two-equation turbulence model based on the k – ω model … the flow and adjoint
convergence to machine precision and … A fine tuning of the above c 0 – c 2 weights is needed to …