Student Project &
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Student Project &
Research Symposium

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Student Project &
Research Symposium

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Student Project &
Research Symposium

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College Center Ballroom
Effect of Aspect Ratios on Automobile Intake Manifolds Using Computational Fluid Dynamics (Flow Simulations)
Ryan Montis
Date:
April 22nd, 2022
Division:
Mathematics and Sciences
Department:
Mechanical/Aerospace Engineering
Mentor:
Angelo Esposito
Mentor's e-mail:
aesposito1@occ.cccd.edu
Author's e-mail:
Presentation Slides
Abstract:

A combined experimental and numerical study on the flow capacity and trajectories of automobile intake manifolds is presented. The effects of 2 Geometric parameters, aspect ratio (height and width) of intake runners and throttle body are considered based on the constraints of the Toyota 2ZR-FE engine cylinder head that these manifolds would be bolted on to. To study the effect of the different aspect ratios 2 manifolds, having intake runner size of height 2.80cm/3.10cm and width of 5.30cm/6.10cm with throttle body inlet sizes of 55mm and 65mm, will be flow tested using computational flow simulations to analyze the flow trajectories. Turbulence Viscosity and pressure built up inside different parts of the intake system are then analyzed to determine the positive and negative effects of different aspect ratios. To analyze low and high loads of air flow the volume flow rate for the inlet and outlets are changed to demonstrate how the manifolds will perform under cruising and full throttle driving conditions. Experimental and numerical data was taken, and results were compared to determine that there is a direct effect on the turbulence viscosity across different aspect ratios under both high & low loads of air flow. The pressure comparison test was a clear indicator of how aspect ratios can affect air's ability to flow freely before parts of the intake begin to bottle neck and build pressure. The visual effects of aspect ratios are also demonstrated by how many and intense of vortexes formed when performing a flow trajectory analyses.

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