Underbody Drag Reduction Study for Electric Car Using CFD Simulations

Gorre, Parandhamaiah; Prasad, P. L. N.; Kumbhar, Mansinh; Kale, Gajanan; Pathapadu, Vamsi

doi:10.4271/2015-26-0211

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…The arrangements of deflectors and under-hood, trailing arm covers, and rear bumper covers produced from fibre-reinforced polymer composites that will help in reducing the drag need to be studied. [260] EVs are required to be more powerful and competitive with higher torque, higher speed, and higher power density. Thermal management is a key component in achieving the motor's efficiency, longevity, and safety.…”

Section: Research Avenues For Polymers In Automobilesmentioning

confidence: 99%

Recent Developments and Research Avenues for Polymers in Electric Vehicles

Gupta¹,

Toksha

Patel³

et al. 2022

The Chemical Record

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Plastics have been an indispensable material of choice in automobiles with wide range of applications such as interior, exterior, under the hood, and lighting/wiring applications. The prime motive of inclusion of these materials is increase in fuel efficiency and reduction in carbon footprint by replacing the energy intensive metallic counterparts. The current decade i. e., the 2020s has seen a recent surge in the sales of electronic vehicles. Although these numbers are promising, the growth in the rest of the parts of the world is not encouraging. It is primarily due to the skepticism involving battery life and efficiency, profitability, and environmental footprint when compared to conventional and hybrid vehicles. Also, a more concerted effort is needed in the lagging areas in order to install the required infrastructure. The emergence of plastics in the development and acceptance of e-vehicles is going to be pivotal especially when the efficiency and profitability are considered as they give the required freedom to the engineers for the design and development of various parts and sizes by replacing the bulkier and more dense materials. Also, the research on bionanocomposites has received great interest from the research community due to their versatility in application along with their eco-friendly nature throughout the lifecycle starting from feedstock up to end-of-life treatment. This review paper will be one of its kind to present a critical review of the recent developments of polymers suitable for use in e-vehicles. Also, a comprehensive discussion comprising of newer research areas for polymers in their use for e-vehicles will be presented.

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Section: Research Avenues For Polymers In Automobilesmentioning

confidence: 99%

Recent Developments and Research Avenues for Polymers in Electric Vehicles

Gupta¹,

Toksha

Patel³

et al. 2022

The Chemical Record

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“…However, most works under crosswind condition had been confined to a simplified model which did not consider the effect of underbody details on aerodynamic force, [7][8][9][10][11] and the influence of underbody structure under no-crosswind is such that it changed flow field, which could be lead to the aerodynamic force changing. For example, Gorre et al 12 showed that there was a considerable air resistance due to underbody components. The contribution of the underbody geometry on total drag was studied by Huminic and Huminic, 13 and the results showed that the aerodynamic drag increased obviously.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation for the influence of the car underbody on aerodynamic force and flow structure evolution in crosswind

Zhi-qun

Huang

2018

Advances in Mechanical Engineering

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To investigate the aerodynamic behavior of underbody structure in crosswind conditions, two numerical simulation models have been developed by using computational fluid dynamics method. First, to validate the accuracy of these models, the wind tunnel experiment of model with simplified flat underbody has been designed. The computationally predicted results of realizable k-e model show consistency with experimental data, and the correlation deviation of aerodynamic force is less than 10%. By using such model, the aerodynamic force and flow field of car under steady crosswind are simulated using underbody structure, and the influence on the aerodynamic characteristic has been analyzed. It can be found that the aerodynamic force increased significantly under different yaw angle. The physical mechanism response has been clearly shown by investigating the flow field around car body by vortices visualization technique. The results of this study can be served as a suggestion for studying the vehicle stability of high-speed under crosswind.

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