Aeroaocustic Numerical Analysis of the Vehicle Model

Hamiga, Władysław Marek; Ciesielka, Wojciech

doi:10.3390/app10249066

Cited by 7 publications

(10 citation statements)

References 14 publications

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“…The aerodynamic parameters connected with airflow around the vehicle were calculated on the basis of the continuity (1) and momentum (2) equations. In accordance with the previous studies [26,27], it was decided to use the k − ω SST turbulence model for the first stage of the research.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…In recent years, due to the dynamic development of super computers, it has become possible to perform aerodynamic and aeroacoustics calculations for very complex computer models using CFD. As part of the work carried out for several years, the authors have built and verified a simplified car model, which is known in the scientific community as the Ahmed body [26], and a model of a homogeneous column of trucks [27].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Analysis of Aeroacoustic Phenomena Generated by Heterogeneous Column of Vehicles

Hamiga

Ciesielka

2022

Energies

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The last decade has seen an exponential interest in conventional and unconventional energy issues. This trend has also extended to road transport issues and is driven by expectations to minimize fuel and/or energy consumption and negative environmental impact. In the global literature, much attention is focused on the work of autonomous transport, both passenger and trucks, and on the phenomena of platooning. The paper presents original aerodynamic and aeroacoustic tests of heterogeneous vehicle columns. In the work, models of a car, a van and a truck were built, followed by heterogeneous columns with different distances between the vehicles. Computational fluid dynamics (CFD) methods and two turbulence models, k−ω shear stress transport (SST) and large eddy simulation (LES), were used in this study. The study enabled the determination of drag coefficients and lift force. Application of the Ffowcs Williams–Hawkings (FW-H) analogy allowed for the determination of the distributions of sound pressure levels generated by moving vehicles and columns of vehicles. In order to verify the developed models, acoustic field measurements were made for the following passages: passenger car, van, and truck. Acoustic pressure level and A-weighted sound level (SPL) were measured in Krakow and in its vicinity. Research has shown that grouping vehicles into optimal columns and maintaining distances between vehicles using modern control systems can result in significant energy savings and reduce harmful emissions to the environment.

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Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Aeroacoustic Phenomena Generated by Heterogeneous Column of Vehicles

Hamiga

Ciesielka

2022

Energies

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“…To solve these equations, it is necessary to adopt an additional hypothesis related to the viscosity of the fluid. In accordance with previous studies [51], it was decided to use the k − ω SST turbulence model for the first stage of the research. This model belongs to the Reynolds averaged Navier-Stokes (RANS) family and is used for steady-state calculations.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…The discretization process is performed in two stages. The first stage is connected with the work publicized by authors in "Aeroacoustic Numerical Analysis of the Vehicle Model" [51]. The article focuses on determining the key parameters of the numerical grid with respect to comparing the compliance of three criteria: drag coefficient as a function of Reynolds number, streamwise velocity profiles at the symmetry plane, and characteristic structures in the wake of the vehicle model.…”

Section: Discretizationmentioning

confidence: 99%

Numerical Analysis of Aeroacoustic Phenomena Generated by Truck Platoons

Hamiga

Ciesielka

2021

Sustainability

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In recent years there has been dynamic progress in the development of fully autonomous trucks and their combination and coordination into sets of vehicles moving behind each other within short distances, i.e., platooning. Numerous reports from around the world present significant benefits of platooning for the environment due to reduced emissions, reduced fuel costs, and improved logistics in the transport industry. This paper presents original aerodynamic and aeroacoustic studies of identical truck column models. They are divided into four main stages. In the first, a truck model and three columns of identical trucks with different distances between the vehicles was made and tested using computational fluid dynamics (CFD). Two turbulence models were used in the study: k−ω shear stress transport (SST) and large eddy simulation (LES). The aim of the work was to determine the drag coefficients for each set of vehicles. The second stage of work included determination of sound field distributions generated by moving vehicles. Using the Ffowcs Williams–Hawkings (FW-H) analogy, the sound pressure levels were determined, followed by the sound pressure levels A. In order to verify the correctness of the work carried out, field tests were also performed and additional acoustic calculations were carried out using the NMPB-Routes-2008 and ISO 9613-2 models. Calculations were performed using SoundPlan software. The performed tests showed good quality of the built aerodynamic and aeroacoustic models. The results presented in this paper have a universal character and can be used to build intelligent transport systems (ITSs) and intelligent environmental management systems (IEMSs) for municipalities, counties, cities, and urban agglomerations by taking into account the platooning process.

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“…Understanding local phenomena connected with airflow around road vehicles allows to reduce the negative impact of transportation on the environment. The work presented in [14] used numerical tools for computational fluid dynamics (CFD) and computational aeroacoustic (CAA) calculations. The simplified car geometry "Ahmed body" was used for two different purposes: a validation process and a CAA analysis using the Ffowcs Williams-Hawkings (FW-H) analogy.…”

Section: The Present Issuementioning

confidence: 99%

Advances in Vibroacoustics and Aeroacustics of Marine, Aerospace and Automotive Systems

2022

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This Special Issue highlights the latest enhancements in vibroacoustics and aeroacustics of marine, aerospace, and automotive systems. Topics covered in this Special Issue deal with computational, instrumentation, and data analysis of acoustics and vibrations of aircrafts, satellites, spacecrafts, automotives, trains, ships, etc., ranging from aerodynamically generated noise to engine noise, vibration transmission, sound absorption, acoustic treatments, modelling procedures and vibroacoustic properties of materials. The focus of this Special Issue is related to industrial aspects as dedicated numerical studies, experimental testing campaigns, and optimization problems. Procedures and algorithms useful to reach the abovementioned objectives in the most efficient way are illustrated in the collected papers.

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Aeroaocustic Numerical Analysis of the Vehicle Model

Cited by 7 publications

References 14 publications

Numerical Analysis of Aeroacoustic Phenomena Generated by Heterogeneous Column of Vehicles

Numerical Analysis of Aeroacoustic Phenomena Generated by Heterogeneous Column of Vehicles

Numerical Analysis of Aeroacoustic Phenomena Generated by Truck Platoons

Advances in Vibroacoustics and Aeroacustics of Marine, Aerospace and Automotive Systems

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