2/25/2016 Vanderbilt Motorsports Intake and Exhaust Project 1 Vanderbilt Motorsports Intake/Exhaust Team January 31, 2008 Presentation Kristina Kitko Mark Melasky Perry Peterson Tim Wranovix

Introduction ASME Venturi Design Decision Intake Manifold –Fluent and Flow Bench Analysis –Intake Tuning Method Project Schedule

Venturi Design: ASME Standard D35mm L135mm R mm α121Degrees R272.5mm Dt20mm L36.67mm R3100mm α27Degrees R4100mm L535mm

Venturi Design: ProEngineer Rendering

Flow Bench Testing System Integration with Vanderbilt Wind Tunnel Materials: PVC pipe and wood Goal: Obtain empirical data –Venturi model comparison –Intake Manifold model comparison to CFD results

Flow Bench Testing

“No Nozzle Left Behind”

Intake System Design: Helmholtz Resonance Tuning Optimum tuning peak selection –10,000 rpm Determine optimum volume of velocity stacks Following determination of manifold geometry –Determine inertial wave charging –Determine Helmholtz Resonance peaks

Intake System Design: Helmholtz Methodology System Geometry Parameters : Throttle Body/Venturi –Throttle Body Inductance –Restrictor Outlet Diameter –Venturi Inductance Plenum –Plenum Length –Plenum Average Area Runners –Intake Manifold Runner Length –Intake Manifold Runner Area –Secondary Runner Inductance Ports –Intake Port Length –Intake Port Average Area Cylinders –Displacement per Cylinder –Engine Compression Ratio

2/25/2016 Vanderbilt Motorsports Intake and Exhaust Project10 Next Steps Construct larger flow bench Optimize intake manifold volume using CFD and Helmholtz analysis –Results from Helmholtz analysis Outsource Venturi and intake design construction