Periodic adjoints and anisotropic mesh adaptation in rotating frame for high-fidelity RANS turbomachinery applications

F Alauzet, L Frazza, D Papadogiannis - Journal of Computational Physics, 2022 - Elsevier
The scope of this paper is to demonstrate the viability and efficiency of metric-based
unstructured anisotropic mesh adaptation techniques to turbomachinery applications. The …

Vision 2030 Aircraft propulsion grand challenge problem: Full-engine CFD simulations with high geometric fidelity and physics accuracy

MS Anand, G Medic, U Paliath, KL Suder… - AIAA scitech 2021 …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-0956. vid In 2014 NASA published
the outcome of the 2030 CFD (Computational Fluid Dynamics) Vision study:“CFD Vision …

The application of support vector regression and virtual sample generation technique in the optimization design of transonic compressor

H Hu, Y Song, J Yu, Y Liu, F Chen - Aerospace Science and Technology, 2022 - Elsevier
With the development of artificial intelligence, machine learning technique has been applied
in turbomachinery optimization. However, the performance of a classic machine learning …

Blade/casing rubbing interactions in aircraft engines: Numerical benchmark and design guidelines based on NASA rotor 37

E Piollet, F Nyssen, A Batailly - Journal of Sound and Vibration, 2019 - Elsevier
In order to improve the efficiency of aircraft engines, the reduction of clearances between
blade tips and their surrounding casing is one avenue manufacturers consider to lower …

Numerical investigation of transonic axial compressor rotor flows using an improved transition-sensitized turbulence model

B Cui, X Wang, R Wang, Z Xiao - Physics of Fluids, 2021 - pubs.aip.org
Internal flows of transonic compressor rotors National Aeronautics and Space Administration
rotor 67/37 are numerically studied through the Reynolds-averaged Navier–Stokes …

The application of support vector regression and mesh deformation technique in the optimization of transonic compressor design

H Hu, J Yu, Y Song, F Chen - Aerospace Science and Technology, 2021 - Elsevier
With the development of modern aero-engine, the compressor is required to achieve higher
performance such as transonic operation, high stage pressure ratio and efficiency. At …

ICSFoam: An OpenFOAM library for implicit coupled simulations of high-speed flows

S Oliani, N Casari, M Carnevale - Computer Physics Communications, 2023 - Elsevier
When a strong coupling between the equations of a specific physical problem exists,
segregated solvers are likely to struggle or fail in finding the solution to the equation system …

Mmgp: a mesh morphing gaussian process-based machine learning method for regression of physical problems under nonparametrized geometrical variability

F Casenave, B Staber… - Advances in Neural …, 2024 - proceedings.neurips.cc
When learning simulations for modeling physical phenomena in industrial designs,
geometrical variabilities are of prime interest. While classical regression techniques prove …

Leakage uncertainties in compressors: The case of rotor 37

P Seshadri, GT Parks, S Shahpar - Journal of Propulsion and Power, 2015 - arc.aiaa.org
This paper revisits an old problem of validating computational fluid dynamics simulations
with experiments in turbomachinery. The case considered here is NASA rotor 37. Prior …

On the detection of nonlinear normal mode-related isolated branches of periodic solutions for high-dimensional nonlinear mechanical systems with frictionless contact …

T Vadcard, F Thouverez, A Batailly - Computer Methods in Applied …, 2024 - Elsevier
This contribution introduces a methodology for the detection of isolated branches of periodic
solutions to the nonlinear mechanical equation of motion for systems featuring frictionless …