Unstructured anisotropic mesh adaptation for 3D RANS turbomachinery applications

Frazza, Loïc; Loseille, Adrien; Alauzet, Frédéric

doi:10.2514/6.2019-3059

“…This data is presented in Figure 5. 27 The initial mesh CHAPTER 5 M 0 being rather coarse, it does not allow for the solving of the physics in the near wall region correctly. This explains the low shear values.…”

Section: Discussion Of Aerothermal Resultsmentioning

confidence: 99%

“…Mesh adaptation appears as one of the most promising techniques for optimized grid generation [48]. While extensive work has been done for Reynolds-Averaged Navier-Stokes simulations (RANS) [33,25,13,3,27], the unsteady nature of the LES equations challenges the generation of the optimal grid. In Chapter 3, two main feature-based approaches have been developed, namely dynamic or static mesh refinement (DMR vs SMR).…”

Section: A Mesh Adaptation Strategy Ensuring Independent Mean Kinetic...mentioning

confidence: 99%

High-Fidelity Simulation of the Aerothermal Performances of a Turbofan Thrust Reverser

Grenouilloux

¹

,

Bechane

²

,

Carmona

³

et al. 2024

Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions

0

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…Mesh adaptation appears as one of the most promising techniques for optimized mesh generation [18]. While extensive work has been done for Reynolds-Averaged Navier-Stokes simulations (RANS) [19][20][21][22][23], the unsteady nature of the LES equations challenges the generation of the optimal mesh. Two main feature-based approaches have been developed, namely Dynamic or Static Mesh Refinement (hereinafter called DMR and SMR).…”

Section: Introductionmentioning

confidence: 99%

Toward the use of LES for industrial complex geometries. Part I: automatic mesh definition

Grenouilloux

¹

,

Leparoux

²

,

Moureau

³

et al. 2023

Journal of Turbulence

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…With adaptive refinement, the mesh is changed dynamically during a simulation, to adapt it to the requirements of the evolving flow field. AGR today is used frequently and reliably in RANS simulations for different applications, such as aerodynamics [2,3,19], free surface capturing [40,43], reacting flows [10] and in turbo-machinery configurations [9,38].…”

Section: Introductionmentioning

confidence: 99%

Average-based mesh adaptation for hybrid RANS/LES simulation of complex flows

Mozaffari

¹

,

Guilmineau

²

,

Visonneau

³

et al. 2022

Get access via publisher Add to dashboard Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

show abstract

Unstructured anisotropic mesh adaptation for 3D RANS turbomachinery applications

Cited by 5 publications

References 20 publications

High-Fidelity Simulation of the Aerothermal Performances of a Turbofan Thrust Reverser

High-Fidelity Simulation of the Aerothermal Performances of a Turbofan Thrust Reverser

Toward the use of LES for industrial complex geometries. Part I: automatic mesh definition

Average-based mesh adaptation for hybrid RANS/LES simulation of complex flows

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