1. Implementation of Vortex Cavities in a Turbojet Diffuser Sponsor: Williams International Progress Report 4 November 16, 2006 TEAM CRUISE CONTROL Michael Feldman Marvin Kong Nansi Xue

2. Table of Contents CFD with vortex cavity Test preparation progress

3. CFD on Diffuser with Vortex Cavity Previous analysis determined the flow separation location Further CFD done on diffuser with vortex cavity No feedback tubes implemented yet

4. CFD (with Vortex Cavities) Thinning of boundary layer when vortex cavities are implemented

5. Diffuser Components SLA model has been sent to Williams International, expected to receive the model on Monday or Tuesday New diffuser adapter has been constructed Final piece: requires a 6” PVC pipe to connect the adaptor to the vacuum inlet

6. Diffuser Components Pipe to be ordered from www.mcmaster.comwww.mcmaster.com

7. Testing Set-up All major testing components have been accounted for Requires pitot tubes and epoxy to finish up experiment preparation Adaptor Nozzle Vacuum inletFlow speed regulator

8. Questions?