Characterization of scramjet intake flowfields and performance during ascent flight via high-resolution numerical simulation

Chihiro Fujio, Shuvayan Brahmachary, Hideaki Ogawa

DOI Number XXX-YYY-ZZZ

Conference Number HiSST-2022-303

Scramjets are one of the most promising propulsion technologies for efficient and flexible space
transportation. However, rather few studies have been reported for scramjets specifically for ascending
flight, which is of crucial importance to realise space transportation. Axisymmetric intake flowfields are
investigated numerically assuming a typical scramjet operation on a constant dynamic pressure ascent
trajectory, aiming to achieve scramjet-powered access-to-space. Physical insight into scramjet
flowfields at various flight altitudes and Mach numbers have been obtained by means of high-fidelity
numerical simulation using adaptive mesh refinement. The intake performance is evaluated with respect
to the compression efficiency, drag, the temperature at the intake exit. The insight gained here can be
usefully applied to the design of high-performance scramjet intakes for ascent trajectories.

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ascent flight, Computational Fluid Dynamics, hypersonic airbreathing propulsion, Scramjet Engine, scramjet intake

In Categories: 1.Events, HiSST 2022, Propulsion Systems and Components

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