On turbulent flow and aerodynamic noise of generic side-view mirror with cell-centred finite difference method

Liao, Fei

doi:10.1080/14685248.2022.2037621

Journal of Turbulence

2022

DOI: 10.1080/14685248.2022.2037621

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On turbulent flow and aerodynamic noise of generic side-view mirror with cell-centred finite difference method

Fei Liao

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Cited by 4 publications

References 29 publications

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A second-generation URANS model (STRUCT-$$\epsilon $$) applied to a generic side mirror and its impact on sound generation

Munoz-Paniagua,

García,

Latorre-Iglesias

2024

Engineering with Computers

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A generic side mirror can be approximated to the combination of a half cylinder topped with a quarter of sphere. The flow structure in the wake of the side mirror is highly transient and the turbulence plays an important role affecting aeroacoustics through pressure fluctuation. Thus, this geometry is one of the test cases object of several numerical studies in recent years to assess the aerodynamic and aeroacoustic capabilities of the turbulence models. In this context, this study presents how the second-generation URANS closure STRUCT-$$\epsilon $$ ϵ is able to properly predict the expected stagnation, flow separation and vortex shedding phenomena. Besides, the predictive accuracy for the noise generation mechanism is evaluated by comparing the spectra of the sound pressure level measured at several static pressure sensors with the numerical results obtained with the STRUCT-$$\epsilon $$ ϵ . The response of this turbulence model has exceeded that from other hybrid methods and is in good agreement with the results from Large-Eddy Simulations or the experiments. To conclude the paper, the applicability of STRUCT-$$\epsilon $$ ϵ to construct a Spectral Proper Orthogonal Decomposition method that helps identifying the most energetic modes to appropriately capture the dominant flow structures is also introduced.

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A second-generation URANS model (STRUCT-$$\epsilon $$) applied to a generic side mirror and its impact on sound generation

Munoz-Paniagua,

García,

Latorre-Iglesias

2024

Engineering with Computers

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show abstract

On Numerical Integration and Conservation of Cell-Centered Finite Difference Method

Wang,

Liao,

2024

J Sci Comput

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Preconditioned boundary-implicit subiterative DDADI method for accuracy and efficiency enhancement in low-Mach number flows

Liao

Jin

2023

Computers & Fluids

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On turbulent flow and aerodynamic noise of generic side-view mirror with cell-centred finite difference method

Cited by 4 publications

References 29 publications

A second-generation URANS model (STRUCT-$$\epsilon $$) applied to a generic side mirror and its impact on sound generation

A second-generation URANS model (STRUCT-$$\epsilon $$) applied to a generic side mirror and its impact on sound generation

On Numerical Integration and Conservation of Cell-Centered Finite Difference Method

Preconditioned boundary-implicit subiterative DDADI method for accuracy and efficiency enhancement in low-Mach number flows

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