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Abstract:
The report summarizes a research program focused on two main issues related to the achievement of high Reynolds number quiet flow in hypersonic tunnels, namely, 1) automated optimal design of quiet hypersonic tunnels, and 2) tunnel startup in the presence of blunt models. In the former case, a fully automated optimal design methodology was developed to determine the optimal shape of the supersonic nozzle to achieve laminar flow on the nozzle walls and hence quiet flow in the test section. In the latter case, detailed time-accurate simulations were performed for a cone model of different angles in the Purdue Quiet Tunnel. Results demonstrated the limiting size of the model that permitted startup of the tunnel.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Final rept. 1 Mar 2006-30 Nov 2008 |
| Pages: |
17 |
| Report Date: |
23-Feb-2009 |
| Contract Number: |
FA9550-06-1-0195 FA95500610195 |
| Report Number: |
A212894 |
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Keywords relating to this report:
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