Aerodynamic resistance stands as a pivotal factor impacting the performance of
race cars, creating significant impedance to their movement. Diverse strategies
exist to alleviate this resistance, including the integration of aerodynamic
elements and refinement of the vehicle's body contours. By emphasizing drag
reduction without altering the powertrain, race car designs can effectively
curtail drag. This study centers on the exhaustive examination, analysis, and
experimentation with a model representing a Formula Student (FS) car, with the
primary objective of augmenting its aerodynamic efficiency for motorsport
applications. In compliance with the SAEINDIA Supra regulations, a meticulously
crafted CAD model of the formula car is developed. After this, the model
undergoes simulation utilizing computational fluid dynamics (CFD) tools,
facilitating the identification of turbulent zones and areas of enhanced drag. A
scaled-down 3D printed model is then employed for comparative analysis within a
wind tunnel. The insights garnered from these experiments enable iterative
modifications to the initial model based on the obtained results. Further CFD
analyses are conducted on the refined iteration, initiating an iterative
enhancement process aimed at optimizing the vehicle's aerodynamic performance.
The culmination of this comprehensive process involves the development,
analysis, and testing of a prototype, showcasing a notable 28% enhancement in
aerodynamic performance. This accomplishment underscores the effectiveness of
the iterative refinement methodology in elevating the overall aerodynamics of
the vehicle. However, it is crucial to acknowledge that implementing such
designs may pose challenges for manufacturers, although not insurmountable ones.
Additionally, it's important to note that outcomes from CFD simulations and wind
tunnel tests have a 3% deviation in results, that can be influenced by factors
like surface finish and boundary conditions, leading to potential variations.
Acknowledging these limitations contributes to a comprehensive comprehension of
the research's scope and potential sources of variability in the results
attained.