Aerodynamic characteristics and structural behavior of sound barrier under vehicle-induced flow for five typical vehicles

Wang, Dalei; Sun, Mengjin; Shen, Xiang; Chen, Airong

doi:10.1016/j.jfluidstructs.2022.103816

Cited by 5 publications

(1 citation statement)

References 39 publications

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“…The virtual wind tunnel adheres to the prescribed aerodynamic standards, characterized by dimensions of 10L x 10L x 6L (where L represents a multiplier of the length, width, and height) corresponding to 45 x 18 x 9 meters. Ground boundary conditions are modeled as a sliding wall with symmetrical side surfaces, in accordance with established research guidelines [12,13]. The air velocity is specified at 33.33 m/s, while the air density is maintained at 1.2 kg/m3, with a relative outlet pressure of 0 Pa. To emulate real-world conditions as closely as possible, accounting for tire load, a 5-mm section is excluded from the bottom of the tire during the simulation.…”

Section: B 3d Modeling and Virtual Wind Tunnelmentioning

confidence: 99%

Analysis of the Aerodynamics and Drag Coefficient of the Tesla Model S Using the Siemens Star Ccm+ Software

2023

Journal of Southwest Jiaotong University

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Air resistance significantly affects a vehicle's performance, especially during high-speed operation. This study employs the Siemens Star CCM+ software to investigate the aerodynamics and drag coefficient of the Tesla Model S electric car. Computational fluid dynamics simulations were used to assess the vehicle body profile. A theoretical model was established to evaluate the effectiveness of the research methodology. This study concentrates on the aerodynamic analysis of variations in the vehicle's rear end, specifically examining the effects of changes in length and deformation in comparison to the original design. The investigation draws upon globally recognized literature and research to contribute to the understanding of these aerodynamic modifications. The results demonstrate the success of this simulation approach in determining the aerodynamic properties and drag coefficient of the Tesla Model S. Moreover, this method proves to be a time-and cost-efficient alternative to conventional techniques.

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Section: B 3d Modeling and Virtual Wind Tunnelmentioning

confidence: 99%

Analysis of the Aerodynamics and Drag Coefficient of the Tesla Model S Using the Siemens Star Ccm+ Software

2023

Journal of Southwest Jiaotong University

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A Gaussian–cubic backward substitution method for the four-order pure stream function formulation of two-dimensional incompressible viscous flows

Zhang,

Lin,

Reutskiy

et al. 2023

Engineering with Computers

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The Role of Forebody Topology on Aerodynamics and Aeroacoustics Characteristics of Squareback Vehicles using Computational Aeroacoustics (CAA)

Viswanathan,

Chode

2024

Flow Turbulence Combust

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This study investigates the influence of forebody configuration on aerodynamic noise generation and radiation in standard squareback vehicles, employing a hybrid computational aeroacoustics approach. Initially, a widely used standard squareback body is employed to establish grid-independent solutions and validate the applied methodology against previously published experimental data. Six distinct configurations are examined, consisting of three bodies with A-pillars and three without A-pillars. Throughout these configurations, the reference area, length, and height remain consistent, while systematic alterations to the forebody are implemented. The findings reveal that changes in the forebody design exert a substantial influence on both the overall aerodynamics and aeroacoustics performance of the vehicle. Notably, bodies without A-pillars exhibit a significant reduction in downforce compared to their A-pillar counterparts. For all configurations, the flow characteristics around the side-view mirror and the side window exhibit an asymmetrical horseshoe vortex with high-intensity pressure fluctuations, primarily within the confines of this vortex and the mirror wake. Side windows on bodies with A-pillars experience more pronounced pressure fluctuations, rendering these configurations distinctly impactful in terms of radiated noise. However, despite forebody-induced variations in pressure fluctuations impacting the side window and side-view mirror, the fundamental structure of the radiated noise remains relatively consistent. The noise pattern transitions from a cardioid-like shape to a monopole-like pattern as the probing distance from the vehicle increases.

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Aerodynamic characteristics and structural behavior of sound barrier under vehicle-induced flow for five typical vehicles

Cited by 5 publications

References 39 publications

Analysis of the Aerodynamics and Drag Coefficient of the Tesla Model S Using the Siemens Star Ccm+ Software

Analysis of the Aerodynamics and Drag Coefficient of the Tesla Model S Using the Siemens Star Ccm+ Software

A Gaussian–cubic backward substitution method for the four-order pure stream function formulation of two-dimensional incompressible viscous flows

The Role of Forebody Topology on Aerodynamics and Aeroacoustics Characteristics of Squareback Vehicles using Computational Aeroacoustics (CAA)

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