What is it about?
This research investigates boundary layer growth about a hypersonic external compression ramp as would be seen in a scramjet engine. It explores how a boundary layer develops given the manipulation of a static pressure field and how these phenomena may be used to generate an optimised scramjet intake design.
Featured Image
Photo by Hermeus on Unsplash
Why is it important?
Sustained Scramjet propulsion plays a pivotal role in the future of air combat. If achieved - it may be used to evade all existing air defence systems and lend the user a large tactical advantage. Boundary layer growth is essential to understand and subdue for small profiled combustion chambers as the viscous displacement such a flow field could experience would choke such an engine - causing an unstart.
Perspectives
This publication looks at a steady state design. I believe it shows promise in validating the design of an axis symmetric scramjet through incorporation of a porous bleed slot. While not all encompassing - I think that the research warrants a follow up study - where unsteady behaviour and a 3D domain is examined.
Sam Burrows
Cranfield University
Read the Original
This page is a summary of: Hypersonic Boundary Layer Reduction with Optimisation of the Hyshot II Intake using Numerical Methods, January 2024, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2024-2861.
You can read the full text:
Contributors
The following have contributed to this page
