Simulation Research on Aerodynamic Characteristics of Vehicle under Steady Crosswind Based on XFlow

Han, Shan Ling; Li, Zhi Yong; Li, Jin Bin; Yu, Ru

doi:10.4028/www.scientific.net/amm.494-495.138

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The purpose to neglect some of the external parts is due to the limitations in the simulation technique [18], [19] and to avoid the effect of rotational motion and tires wake [20]. Based on the study by Han et al [21], the simplified Aerodynamic Studien Model (ASMO model) is applied due to the actual model of the car body generally having sophisticated surfaces and part specifics. The complex model will require extensive computation and processing time.…”

Section: Methodology 21 Car Modelmentioning

confidence: 99%

Flow Structure Characteristics of the Simplified Compact Car Exposed to Crosswind Effects using CFD

Kamal

Ishak²,

Darlis³

et al. 2022

ARASET

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Aerodynamic characteristics of a car are important in reducing car accidents caused by wind loading and in lowering fuel economy, continuing to be a major topic of interest. The restrictions of wind tunnel tests and the rising trend of numerical methods have been complied with by past researchers to investigate vehicle aerodynamics computationally. This research aims to analyze comprehensively the effect of crosswinds on a moving vehicle in terms of aerodynamic loadings and flow structures using commercial fluid dynamic software ANSYS FLUENT. This paper will focus on the CFD-based simplified compact car body developed in CATIA V5 by neglecting the external parts such as side mirrors and underbody.

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Section: Methodology 21 Car Modelmentioning

confidence: 99%

Flow Structure Characteristics of the Simplified Compact Car Exposed to Crosswind Effects using CFD

Kamal

Ishak²,

Darlis³

et al. 2022

ARASET

View full text Add to dashboard Cite

show abstract

“…The shape consists of a square-back rear, smooth surfaces, a boat tail, an underbody diffuser, and no pressure-induced boundary layer separation based on research employed by Le Good and Garry [24]. Han, on the other hand, applied the ASMO model in his study with the dimensions of length (L) = 810 mm, height (H) = 270 mm and width (W) = 290 mm [56]. Whilst an inlet velocity, 𝑣 utilised in this study is approximately 50 m/s and numerical values obtained for the drag coefficient forces (𝐶 𝐷 ) and lift forces (𝐶 𝐿 ) are 0.165 and 0.125 respectively by using the Smagorinsky turbulence model.…”

Section: Simple Bodiesmentioning

confidence: 99%

“…Whilst an inlet velocity, 𝑣 utilised in this study is approximately 50 m/s and numerical values obtained for the drag coefficient forces (𝐶 𝐷 ) and lift forces (𝐶 𝐿 ) are 0.165 and 0.125 respectively by using the Smagorinsky turbulence model. Many academics prefer to use simpler vehicle model such as the ASMO model as the shape of the model that can be easily meshed without the need of larger computer resources and the ability to achieve a good simulation effect as illustrated in Figure 3 [56].…”

Section: Simple Bodiesmentioning

confidence: 99%

A Review of Aerodynamics Influence on Various Car Model Geometry through CFD Techniques

Kamal

Ishak

Darlis

et al. 2021

ARFMTS

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The aerodynamic characteristics of a vehicle play a vital role in steering stability, performance, comfort, and safety of a car. The fuel efficiency of a vehicle is determined by the performance of the internal combustion engine and the aerodynamic design of the body. One of the most important aspects of automobile design is aerodynamic styling. A vehicle with low drag resistance provides advantages in terms of cost and efficiency. This article will review design characteristics and implementation of various specific reference models on drag issues using Computational Fluid Dynamics (CFD) techniques. The benefits and limitations of these models are analysed, and the validity of results in developing guidelines to improve the performance and stability of cars are described. This review paper covers significant studies that utilise the CFD model and simulation on a simplified vehicle model using various turbulence models to generate drag coefficient. Characteristics and impacts of various vehicle design models with and without external factors such as side mirrors and door handles are also discussed. Results obtained from the research focuses on the physics flow structures such as static pressure contours, are presented for the three types of car model geometry. The simplified generic models are more efficient and advocated to apply compared to the specific model geometry based on the result acquired by the latest studies. Simplified generic models are preferred due to their cost-effectiveness, procurement of optimum time, and better simulation effects. Moreover, the study also demonstrates the importance of having a car with suitable turbulence models that are appropriate to be applied for simulations in terms of its applicability, time effectiveness, and cost.

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Simulation Research on Aerodynamic Characteristics of Vehicle under Steady Crosswind Based on XFlow

Cited by 2 publications

References 6 publications

Flow Structure Characteristics of the Simplified Compact Car Exposed to Crosswind Effects using CFD

Flow Structure Characteristics of the Simplified Compact Car Exposed to Crosswind Effects using CFD

A Review of Aerodynamics Influence on Various Car Model Geometry through CFD Techniques

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