Limiting Contractions for Starting Simple Ramp-Type Scramjet Intakes with Overboard Spillage

On the Self-starting Constraints for Busemann Intakes with Overboard Spillage

“…The startability of the Busemann intakes with overboard spillage can be determined with the same approach as was previously used for other intakes with mixed, in-ternal and external, compression, e.g., for the two-shock and Prandtl-Meyer ramp intakes in [7,8]. A normal shock wave is placed at the entry to the internal compression part, between the cowl's leading edge and the Busemann surface at the cross-section denoted as A s in Fig.…”

Starting Characteristics of Hypersonic Inlets in Shock Tunnel

“…On the other hand, if the ICR is low enough, the inlet will undergo self-starting process even if a strong shutter action is 'pre-set' at the beginning. It is also easy to perform the experiments related to 'dual-solution area' [7] with present method. For a certain range of ICR, the inlet with the same configuration, can maintain either started mode or unstarted mode based on the 'pre-set' mode.…”

The Phenomena of Sudden Change in Hypersonic Inlets Self-Starting Capability

“…But unfortunately the restart flow pattern for hypersonic inlet is much different from the assumption and there is a strong shock associated with a large scale boundary layer separation [3] . Many experiments have verified that the inlet can restart at internal contraction ratio beyond Kantrowitz limit [3][4][5] .…”