2003
DOI: 10.2322/jjsass.51.244
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Three-Component Force Measurements for Scramjet Engines 1) Engine Drag from Mach 4 to Mach 8 Flight Conditions

Abstract: Aerodynamic performance of scramjet engines was measured by using 0.44-m-long models in a M6.7 wind tunnel. Drags and wall pressure distributions were measured to evaluate the total pressure and friction drag in the engine internal flow. The internal drag of the models with various struts was dicussed. The internal and the external drags, the pressure and the friction drags were estimated. Consistency between the force balance measurements and the pressure measurements was examined. The internal drag obtained … Show more

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Cited by 11 publications
(2 citation statements)
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“…The numerical D int coincides with experimental data measured in the subscale wind tunnel. 20 Especially, the friction drag agrees well. This good agreement indicates that our numerical prediction of τ w is accurate.…”
Section: Thrust Increment With Combustionsupporting
confidence: 57%
See 1 more Smart Citation
“…The numerical D int coincides with experimental data measured in the subscale wind tunnel. 20 Especially, the friction drag agrees well. This good agreement indicates that our numerical prediction of τ w is accurate.…”
Section: Thrust Increment With Combustionsupporting
confidence: 57%
“…These pressure rises and locations in the inlet were confirmed by those of two-dimensional inviscid shock-wave analysis. 20 The Pw increases from 0.36 to 1.2 up to the entrance of the isolator as a result of the impingement of the strut shock wave on the sidewall. The Pw decreases to 0.1 toward the exit of the engine.…”
Section: Wall Pressure Distributionmentioning
confidence: 98%