Analysis of Air Intake System and Filter of an Automobile Engine By Adding Aerodynamic Structured Baffle

Document Type : Primary Research paper


Assistant Professor, Department of Aero Engineering, Nehru Institute of Technology, Coimbatore


Air intake systems are the first step in the process that makes the engine to
produce the power that moves your vehicle. Some cars come with factory air intakes that are
well tuned to optimize power as much as possible, but for many cars you have the
opportunity to increase the power. Our paper focuses on optimizing the design of an air
intake system in automobile engine by adding aerodynamic structured baffles, It decrease
resistance to air flow into your car's engine while still maintaining high filtration efficiency.
High air flow into your engine allows more into the combustion chambers. This increased
oxygen content benefits you both by giving more horsepower and torque and by increasing
your fuel efficiency and economy. The basic design was designed, modified and assembled
using NX Unigraphics, It is the advanced high end CAD/CAM/CAE. The CFD analysis was
carried out for an existing model to understand the flow behavior and geometry. Results
obtained from CFD analysis of the existing model showed good correlation with
experimental data.
Based on existing model CFD results, the design changes like adding Aerodynamic
structured baffle placement in outlet of the filter box, optimization of mesh size, intake pipe is
made shot This increases the flow rate of air into your car's intake manifold which helps the
engine make more power, the optimized model was again analyzed using CFD and the
results showed Increased in horse power, good improvement in flow behavior, and good
filteration. By using NX Unigraphics and CFD analysis, optimal design of the modified
intake system for an automobile engine is achieved with considerable reduction in
development time and cost.


Volume 12, Issue 3 - Serial Number 3
ICMMNT-2021 International Virtual Conference on Materials, Manufacturing and Nanotechnology, 30th June, 2021.
June 2021
Pages 491-499