Heat-Transfer and Pressure Tests on an Oblate Elliptic Nosetip in the NSWC/WO Hypersonic Tunnel at Mach Number 5 (WTR-1346).
Wind tunnel data rept.,
NAVAL SURFACE WEAPONS CENTER SILVER SPRING MD
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An extensive data base on a 21 elliptical nosetip shape to be utilized for verification of the AVCO MTSCT three-dimensional transition code was generated in the NSWC Hypersonic Tunnel at Mach Number 5. Four nosetip models in which the surface roughness was varied from a smooth wall to a roughness value of 10 mils were tested. The first three nosetips were instrumented with 112 backfaced chromel-alumel thermocouples. The fourth model i.e., 10-mil roughness instrumentation consisted of 67 thermocouples and 31 Statham pressure transducers. The test matrix consisted of sixty runs where the variables included angle-of-attack, tunnel Reynolds number, and wall enthalpy ratio. Author
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