6 papers · 1 filter
HiLiftAeroML: High-Fidelity Computational Fluid Dynamics Dataset for High-Lift Aircraft Aerodynamics
Neil Ashton, Adam Clark, Liam Heidt +11
This paper describes the first-ever open-source high-fidelity CFD dataset of a high-lift aircraft for the purpose of AI surrogate model development. The dataset is composed of 1800…
Predictions of flow distortions inside a serpentine diffuser from large-eddy simulations
Rahul Agrawal, Chad Winkler, Sanjeeb Bose +1
This work examines the flow separation and the resulting pressure distortions at the exit plane of a serpentine diffuser operating at both subsonic and transonic conditions. Wallmo…
Non-equilibrium wall model for large eddy simulations of complex flows exhibiting turbulent smooth body separation
Rahul Agrawal, Sanjeeb T. Bose, Parviz Moin
In this work, a non-equilibrium wall model is proposed for the prediction of turbulent flows experiencing adverse pressure gradients, including separated flow regimes. The mean-flo…
Studies of Transonic Aircraft Flows and Prediction of Initial Buffet Onset Using Large-Eddy Simulations
Konrad A. Goc, Rahul Agrawal, Sanjeeb T. Bose +1
This article utilizes the Large-Eddy Simulation (LES) paradigm with a physics-based turbulence modeling approach, including a dynamic subgrid-scale model and an equilibrium wall mo…
Reynolds number dependence of length scales governing turbulent flow separation with application to wall-modeled large-eddy simulations
Rahul Agrawal, Sanjeeb Bose, Parviz Moin
This article proposes a Reynolds number scaling of the required grid points to perform wall-modeled LES of turbulent flows encountering separation off a solid surface. Based on com…
An extension of Thwaites method for turbulent boundary layers
Rahul Agrawal, Sanjeeb T. Bose, Kevin P. Griffin +1
Thwaites (1949) developed an approximate method for determining the evolution of laminar boundary layers. The approximation follows from an assumption that the growth of a laminar…