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DISTRIBUTION fttAT&MHNT A | DTIC QIJALInf lE'SPECHS] Approved for public release; Distribution Unlimited The results shown here are in agreement with earlier work; significant energy coupling to the flow and laser heating of the flow appears to be a feasible approach. However, the details of the vibrational relaxation show that a conventional two-temperature approach does not describe the resultant distribution. Consequently, inclusion of these effects will be required for successful prediction of exit plane properties, and thus, will be of critical importance to facility design and control. * The research reported herein was performed by the Arnold Engineering Development Center (AEDC), Air Force Materiel Command. Work and analysis for this research were performed by personnel of Sverdrup Technology, Inc., AEDC Group, technical services contractor for AEDC. Further reproduction is authorized to satisfy needs of the U. S. Government.

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