Space Adaptive Methods/Meshing

Hartmann, Ralf; Balan, Aravind; Bassi, Francesco; Boussuge, Jean‐François; Brauer, A. de; Cagnone, Jean-Sebastien; Colombo, Alessandro; Couaillier, Vincent; Coulaud, Olivier; Crivellini, Andrea; Franciolini, Matteo; Ghidoni, Antonio; Hillewaert, Koen; Plata, Marta de la Llave; Manzinali, G.; Naddei, Fabio; Noventa, G.; Puigt, Guillaume; Vermeire, Brian C.; Vincent, Peter

doi:10.1007/978-3-030-62048-6_4

Cited by 3 publications

(1 citation statement)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a consequence, the order of accuracy can be varied locally by using a different degree of the polynomial representation (see Figure 1) according to some error indicator. In literature this approach is known as p-adaptation [32][33][34][35][36] and allows for the capture of the flow features by changing locally the solution accuracy.…”

Section: P-adaptation Strategymentioning

confidence: 99%

Assessment of a Discontinuous Galerkin Method for the Simulation of the Turbulent Flow around the DrivAer Car Model

et al. 2021

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The turbulent flow over the DrivAer fastback model is here investigated with an order-adaptive discontinuous Galerkin (DG) method. The growing need of high-fidelity flow simulations for the accurate determination of problems, e.g., vehicle aerodynamics, promoted research on models and methods to improve the computational efficiency and to bring the practice of Scale Resolving Simulations (SRS), like the large-eddy simulation (LES), to an industrial level. An appealing choice for SRS is the Implicit LES (ILES) via a high-order DG method, where the favourable numerical dissipation of the space discretization scheme plays directly the role of a subgrid-scale model. Implicit time integration and the p-adaptive algorithm reduce the computational cost allowing a high-fidelity description of the physical phenomenon with very coarse mesh and moderate number of degrees of freedom. Two different models have been considered: (i) a simplified DrivAer fastback model, without the rear-view mirrors and the wheels, and a smooth underbody; (ii) the DrivAer fastback model, without rear-view mirrors and a smooth underbody. The predicted results have been compared with experimental data and CFD reference results, showing a good agreement.

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Section: P-adaptation Strategymentioning

confidence: 99%

Assessment of a Discontinuous Galerkin Method for the Simulation of the Turbulent Flow around the DrivAer Car Model

et al. 2021

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A Cartesian Immersed Boundary Method Based on 1D Flow Reconstructions for High-Fidelity Simulations of Incompressible Turbulent Flows Around Moving Objects

Giannenas

Bempedelis

Schuch

et al. 2022

Flow Turbulence Combust

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The aim of the present numerical study is to show that the recently developed Alternating Direction Reconstruction Immersed Boundary Method (ADR-IBM) (Giannenas and Laizet in Appl Math Model 99:606–627, 2021) can be used for Fluid–Structure Interaction (FSI) problems and can be combined with an Actuator Line Model (ALM) and a Computer-Aided Design (CAD) interface for high-fidelity simulations of fluid flow problems with rotors and geometrically complex immersed objects. The method relies on 1D cubic spline interpolations to reconstruct an artificial flow field inside the immersed object while imposing the appropriate boundary conditions on the boundaries of the object. The new capabilities of the method are demonstrated with the following flow configurations: a turbulent channel flow with the wall modelled as an immersed boundary, Vortex Induced Vibrations (VIVs) of one-degree-of-freedom (2D) and two-degree-of-freedom (3D) cylinders, a helicopter rotor and a multi-rotor unmanned aerial vehicle in hover and forward motion. These simulations are performed with the high-order fluid flow solver which is based on a 2D domain decomposition in order to exploit modern CPU-based supercomputers. It is shown that the ADR-IBM can be used for the study of FSI problems and for high-fidelity simulations of incompressible turbulent flows around moving complex objects with rotors.

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Performance Investigation of a Jump Indicator Driver for P-adaptation in Incompressible Navier-Stokes Simulations of a Flat Plate

Carvalho

Moura

Silva

2023

AIAA AVIATION 2023 Forum

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Space Adaptive Methods/Meshing

Cited by 3 publications

References 58 publications

Assessment of a Discontinuous Galerkin Method for the Simulation of the Turbulent Flow around the DrivAer Car Model

Assessment of a Discontinuous Galerkin Method for the Simulation of the Turbulent Flow around the DrivAer Car Model

A Cartesian Immersed Boundary Method Based on 1D Flow Reconstructions for High-Fidelity Simulations of Incompressible Turbulent Flows Around Moving Objects

Performance Investigation of a Jump Indicator Driver for P-adaptation in Incompressible Navier-Stokes Simulations of a Flat Plate

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