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ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
AERODYNAMIC HEATING OF THE BRAZILIAN 14-X HYPERSONIC WAVERIDER SCRAMJET VEHICLE AT MACH NUMBERS 7 AND 10
Submission Author:
Felipe Jean da Costa , SP , Brazil
Co-Authors:
Tiago Rolim, Israel Rêgo, Marco Antonio Sala Minucci, Antonio Carlos de Oliveira, Paulo Toro
Presenter: Felipe Jean da Costa
doi://10.26678/ABCM.ENCIT2016.CIT2016-0657
Abstract
The Brazilian 14-X Hypersonic waverider scramjet Aerospace Vehicle, designed at the Prof. Henry T. Nagamatsu Laboratory of Aerothermodynamics and Hypersonics, at the Institute for Advanced Studies, is a technological demonstrator endowed with waverider technology, to obtain lift due to conical/oblique shockwave during the hypersonic flight; and hypersonic airbreathing propulsion system based on supersonic combustion (scramjet), to fly in the Earth’s atmosphere at 30 km altitude at speeds corresponding to the Mach numbers 7 and 10. During high speed flight the shock waves and the viscous forces yield the phenomenon called aerodynamic heating, where its physical meaning is the friction between the fluid filaments and the body or compression at the stagnation regions of the leading edge that converts the kinetic energy into heat within a thin layer of air which blankets the body. The temperature of this layer increases with the square of the speed. This high temperature is concentrated in the boundary-layer, where heat will flow readily from the boundary-layer to the hypersonic aerospace vehicle structure. Fay and Riddell and Eckert methods are applied to the stagnation point and to the flat plate segments in order to evaluate the aerodynamic heating, which the results will be presented from the leading edge to the trailing edge of the Brazilian 14-X Hypersonic waverider scramjet Aerospace Vehicle at Mach numbers 7 and 10.
Keywords
14-X, Aerodynamic heating, Scramjet, hypersonics, waverider
