10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001
DOI: 10.2514/6.2001-1826
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A study for prediction of flight aerodynamic heating using HYFLEX flight and wind tunnel data

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“…A blunt cone, referred to as ELECTRE had been tested in the new Arc heated high enthalpy facility F4, the extrapolation to flight of the heat flux had been made by using the binary scaling while keeping the total enthalpy the same in the nose region where the dissociation reactions are predominant [2]. NAL(National Aerospace Laboratory) found that the heating rates in the flight of HYFLEX(Hypersonic Flight Experiment) vehicle showing good agreement with hypersonic wind tunnel data in terms of Stanton number ratio in 1998 [3], and in 2001 [4], it was found that the wind tunnel data could correlate with the flight data by the modified viscous interaction parameter V * /S w at windward fuselage region and by the correlative parameter of V * /S w 2 1 ) 1/8 at nose region. Li [5] compared the aerodynamic heating data from two wind tunnel and made some attempt to extrapolate from wind tunnel data by means of the correlative parameters such as flow region parameter, viscous interaction parameter, enthalpy difference between total enthalpy and wall enthalpy, density ratio before and after wave, wall temperature etc.…”
Section: Introductionmentioning
confidence: 94%
“…A blunt cone, referred to as ELECTRE had been tested in the new Arc heated high enthalpy facility F4, the extrapolation to flight of the heat flux had been made by using the binary scaling while keeping the total enthalpy the same in the nose region where the dissociation reactions are predominant [2]. NAL(National Aerospace Laboratory) found that the heating rates in the flight of HYFLEX(Hypersonic Flight Experiment) vehicle showing good agreement with hypersonic wind tunnel data in terms of Stanton number ratio in 1998 [3], and in 2001 [4], it was found that the wind tunnel data could correlate with the flight data by the modified viscous interaction parameter V * /S w at windward fuselage region and by the correlative parameter of V * /S w 2 1 ) 1/8 at nose region. Li [5] compared the aerodynamic heating data from two wind tunnel and made some attempt to extrapolate from wind tunnel data by means of the correlative parameters such as flow region parameter, viscous interaction parameter, enthalpy difference between total enthalpy and wall enthalpy, density ratio before and after wave, wall temperature etc.…”
Section: Introductionmentioning
confidence: 94%