Exergetic Analyses of Hypersonic Flows

Abstract

Hypersonic devices and vehicles and hypersonic flows are very important and
competitive advanced technology in science and in the World. Hypersonic technology is
rapidly spreading and turning into competition in developed countries, especially in space
studies and defense industry. This technology is vital for developed countries. Because
of shock waves emerging in hypersonic devices during hypersonic flow, the energy and
exergy destructions they cause are the most important difficulties, obstacles and problems
which arise in this vital technology. To overcome these problems and difficulties, to
prevent or reduce or minimize energy and exergy destruction, aerodynamic analysis and
energy and exergy analysis methods are applied. The data and the results that can be
guiding and useful for the calculations and the design have been obtained. In this study
optimal design and optimum calculations ways of the energy and exergy destructions of
hypersonic devices and instruments are discussed. It is obtained and shown that how
much exergy destruction and entropy production occurs at which altitude and hypersonic
velocities and also at which oblique shock angles.