Development of Throttle Performance Model for the Formula SAE Engine

Photo of Andrew Erchinger, Fraser Jones, Team Leader Collin Luft Students: Andrew Erchinger, Fraser Jones, Team Leader Collin Luft

Sponsor: The University of Texas Society of Automotive Engineers

Date: Fall 2009

Requirements:
The team is required to match the peak experimental torque for the Honda F4i engine at 10,500 rpm within 5%. The constraints of the project are the inputs to the two software programs that were used, Converge CFD and WAVE, including parameters such as engine geometries, ambient conditions, operating parameters, and conduction properties. The team is also required to write a user manual for Converge CFD for future teams and members of the Mechanical Engineering department.

Problem:
The purpose of this project is to create an accurate performance model of the Honda F4i engine, used in the UT SAE Formula car, that matches experimental torque data so that the UT Formula SAE team can design a new intake manifold for their engine.

Solution:
After running multiple tests, a user manual was written for Converge, the Linux emulator required to run the program on multiple servers at the High Performance Computing Center, and the post processor used to graphically view the results of the simulation. Tests with Converge CFD yielded inaccurate results and areas for improvement were identified; recommendations were given for future teams to achieve accurate results. However, using WAVE, a model of the Honda F4i engine was generated and the peak torque was simulated at 10,500 rpm, yielding results within less than 1% of the experimental value.

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Photo related to Development of Throttle Performance Model for the Formula SAE Engine project
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