International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 12 | Dec 2024
p-ISSN: 2395-0072
www.irjet.net
Design and Analysis of a Split Spoiler to Optimize Downforce and Turbulence Sunny Patel, Shubham Jogani, Dip Chaklashiya, Dharmik Chodvadiya, Miten Naliyadhara,Vaibhav Monpara ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - The split spoiler design represents a significant
Using a BMW M4 Coupe as a case study, the original spoiler, which generates 1098.55 N of downforce at 300 km/h, was redesigned to incorporate a split-spoiler configuration. The redesigned system increased downforce to 1342.34 N with a minimal rise in turbulence. This paper examines the theoretical principles behind the split spoiler, details the design and simulation process, and evaluates its impact on overall vehicle performance.
advancement in vehicle aerodynamics, improving downforce, stability, and handling at high speeds. By introducing a second, slotted wing positioned at a downward angle, the redesigned spoiler increased downforce from 1094.32 N to 1342.34 N at 300 km/h, while maintaining turbulence intensity at a manageable level, rising slightly from 0.1032% to 0.109903%. Simulations conducted in SolidWorks highlighted the design's ability to moderate turbulence, enhance airflow reattachment, and optimize the lift-to-drag ratio, improving traction and reducing wake instability. These aerodynamic gains lead to better cornering stability, shorter stopping distances, and enhanced safety in dynamic driving conditions. While the design increases drag slightly, its benefits in stability and performance outweigh this drawback. Future improvements could focus on reducing drag further and incorporating lightweight materials for greater efficiency. This research demonstrates the potential of advanced spoiler designs to improve the stability, safety, and overall performance of highspeed vehicles.
2. CONVENTIONAL(BASELINE) DESIGN OF SPOILER In our initial design, a simple rear car spoiler was modelled using SolidWorks and subjected to airflow analysis.
Key Words: Downforce, Split Spoiler, Aerodynamics, Turbulence Intensity, Computational Fluid Dynamics (CFD), Vehicle Stability
1. INTRODUCTION
Fig. 1 Baseline(conventional) design of rear spoiler
Aerodynamics is a critical factor in determining a vehicle’s performance, particularly at high speeds, where forces like drag and lift significantly affect stability, handling, and fuel efficiency. Spoilers are essential aerodynamic components that shape airflow around the vehicle to reduce lift and generate downforce. This downforce enhances grip by increasing the vertical load on the tires, which is vital for improved traction during high-speed cornering and braking. However, achieving higher downforce often comes at the expense of increased drag and turbulence, necessitating a careful balance for optimal performance.
The results indicated a turbulence intensity of 0.1032% and a downforce of 1094.32 N at a wind speed of 300 km/h. This design effectively utilized basic aerodynamic principles, generating downforce by creating a pressure difference above and below the spoiler. The downforce (FL ) is governed by the equation
FL=1/2*ρv2/(CL*A) , Where: air density (ρ), velocity (v), lift coefficient (CL ), and reference area (A) are key factors.
This study focuses on designing and analysing a split spoiler system that improves downforce while minimizing turbulence. A split spoiler consists of two separate aerodynamic surfaces, strategically placed to optimize airflow and manage pressure distribution. By introducing a slotted lower wing at a different angle to the original design, this configuration aims to reduce turbulence and enhance aerodynamic efficiency.
© 2024, IRJET
|
Impact Factor value: 8.315
|
ISO 9001:2008 Certified Journal
|
Page 19