AFML Ceramic Nosetip Ablation Test
Final rept. Feb-Apr 1975
ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN
Pagination or Media Count:
Eight ablation test runs were made in an arc-heated, free-jet facility using air as the test fluid. These tests were made to study the effects of hyperthermal conditions on ablative materials of various compositions. The study was accomplished at Mach numbers 2.0 and 2.3 with measured reservoir pressures ranging from 78.2 to 142.2 atm and total bulk enthalpies from 2,120 to 2,416 Btu1b. For the above conditions, model stagnation pressures ranged from 42.9 to 92.8 atm. The models consisted of sphere-cone and cone-cone configurations. A pressure probe was used to obtain model stagnation pressure, and a multichannel calorimeter model was used to obtain heat-transfer data for flow calibration.
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