Performance assessment of supersonic and hypersonic intake systems with nano-particle injection

Jagannathan, Rangesh; Hinman, W. Schuyler; Johansen, Craig T.

doi:10.1016/j.actaastro.2019.02.008

Cited by 6 publications

(1 citation statement)

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“…Table 2 illustrates the three different flow control methods (boundary layer porous bleed, VGs, and mass injection using a plasma jet example) discussed in this section, implemented on shock-dominated flows. Jagannathan et al [142] numerically investigated the effect of boron particle injection on a 2D rectangular-mixed compression intake at M ∞ = 3.0. For simplification, the study ignored shockwave-boundary layer-particle interactions and other viscous effects and achieved about a 16% increase in the intake pressure recovery due to the momentum and energy transfer effects of the nanoaerosol.…”

Section: Mass Injection and Energy Depositionmentioning

confidence: 99%

Aerodynamic Instabilities in High-Speed Air Intakes and Their Role in Propulsion System Integration

Philippou,

Zachos,

MacManus

2024

Aerospace

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High-speed air intakes often exhibit intricate flow patterns, with a specific type of flow instability known as `buzz’, characterized by unsteady shock oscillations at the inlet. This paper presents a comprehensive review of prior research, focused on unraveling the mechanisms that trigger buzz and its implications for engine stability and performance. The literature survey delves into studies concerning complex-shaped diffusers and isolators, offering a thorough examination of flow aerodynamics in unstable environments. Furthermore, this paper provides an overview of contemporary techniques for mitigating flow instability through both active and passive flow control methods. These techniques encompass boundary layer bleeding, the application of vortex generators, and strategies involving mass injection and energy deposition. The study concludes by discussing future prospects in the domain of engine-intake aerodynamic compatibility. This work serves as a valuable resource for researchers and engineers striving to address and understand the complexities of high-speed air induction systems.

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Section: Mass Injection and Energy Depositionmentioning

confidence: 99%