Study of direct gas injection into stagnation zone of blunt nose at hypersonic flow

P Harmon, A Vashishtha, D Callaghan… - AIAA Propulsion and …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-3529. vid Direct gas injection in the
shocked or compressed region has importance in many applications from drag control to …

Novel mechanism of instability control using a tapered spike in hypersonic flow

A Vashishtha, S Khurana - AIAA AVIATION 2021 FORUM, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-2543. vid A forward facing spiked
blunt nose in high-speed flows is associated with pulsating flow behavior of varying …

Mach number dependence of flow instability around a spiked body

A Vashishtha, S Khurana - AIP Conference Proceedings, 2023 - pubs.aip.org
A forward-facing aerospike have been identified as a passive flow control device for
enhancing the aerodynamic efficiency and reducing the heat transfer in high-speed flows. In …

[PDF][PDF] Unsteady DSMC Simulation of blunt nose with spike at hypersonic rarefield flows

N Ravuri, S Scully, A Vashishtha - 57th 3AF International …, 2023 - researchgate.net
To design an efficient ram-air intake for an air-breathing propulsion system for VLEO (Very-
Low)/SLEO (Super-Low) Earth Orbit satellites requires consideration of the unsteady effects …

Unsteady simulation of frontal cavity in supersonic flows

J Deshmukh, D Sahoo, D Kumar… - Aerospace and …, 2022 - api.taylorfrancis.com
This study is focused to develop the understanding of bow-shock instability observed around
a frontal hemispherical shell in supersonic flow through numerical simulations. The frontal …

Detached eddy simulation of unsteady flow over a frontal cavity

SP Salunke, SS Shinde, IA Singh, D Sahoo… - AIAA SCITECH 2023 …, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-0997. vid Frontal cavity consists of
complex unsteadiness which causes bow shock instabilities when the body is moving at …

[PDF][PDF] Effects of freestream disturbances in front of spiked blunt nose at hypersonic flow

A Vashishtha, S Khurana, D Callaghan… - Aerospace Europe …, 2021 - psaa.meil.pw.edu.pl
The effects of high frequency slow and fast acoustic wave freestream disturbances are
modelled in front of pulsating bow shock formed at spiked blunt nose in hypersonic flow …