On the unsteady throttling dynamics and scaling analysis in a typical hypersonic inlet–isolator flow

KR Sekar, SK Karthick, S Jegadheeswaran… - Physics of …, 2020 - pubs.aip.org
The flow field in a two-dimensional three-ramp hypersonic mixed-compression inlet in a
freestream Mach number of M∞= 5 is numerically solved to understand the unsteady …

Shock and shear layer interactions in a confined supersonic cavity flow

SK Karthick - Physics of Fluids, 2021 - pubs.aip.org
The impinging shock of varying strengths on the free shear layer in a confined supersonic
cavity flow is studied numerically using the detached eddy simulation. The resulting …

[HTML][HTML] Supersonic flow unsteadiness induced by control surface deflections

SK Karthick, D Bhelave, A De - Physics of Fluids, 2023 - pubs.aip.org
Control surface deployment in a supersonic flow has many applications, including flow
control, mixing, and body-force regulation. The extent of control surface deflections …

Influence of the outflow initial parameters on the transverse dimensions of underxpanded argon jets in presence of condensation

KA Dubrovin, AE Zarvin, VV Kalyada, AS Yaskin - Vacuum, 2023 - Elsevier
The influence of the outflow initial parameters (stagnation pressure P 0 and temperature T 0,
as well as the residual pressure in the background medium P∞) on the radii in the maximum …

Unsteady pulsating flowfield over spiked axisymmetric forebody at hypersonic flows

MI Sugarno, R Sriram, SK Karthick, G Jagadeesh - Physics of Fluids, 2022 - pubs.aip.org
The paper gives experimental observations of the hypersonic flow past an axisymmetric flat-
face cylinder with a protruding sharp-tip spike. Unsteady pressure measurements and high …

Unsteady dynamics in a subsonic duct flow with a bluff body

LK George, SK Karthick, AR Srikrishnan, R Kannan - Physics of Fluids, 2022 - pubs.aip.org
A series of reduced-order numerical simulations on a specific bluff body type (v-gutters) in a
subsonic duct flow is performed to assess the unsteady wake dynamics. Two of the v-gutter's …

Large-eddy simulation of unsteady flows past a spiked body

W Cui, J Xu, BC Wang - Acta Astronautica, 2023 - Elsevier
Unsteady flows past a spiked body are investigated numerically with wall-resolved large-
eddy simulation (LES). The inflow features a Mach number of M a= 2. 21 and a Reynolds …

Experimental investigation of the pulsing flow field around four types of spiked-blunt body at Mach 2.2

R Guan, Q Qin, Y Wang, J Xu - Aerospace Science and Technology, 2023 - Elsevier
In this paper, unsteady flow pulsation over four types of spiked-blunt body model and related
pulsation suppression methods are investigated through wind tunnel experiments. Direct …

Experimental investigation of flow unsteadiness over four types of spiked-blunt body at Mach 2.2

R Guan, Q Qin, Y Wang, J Xu - Aerospace Science and Technology, 2023 - Elsevier
Flow unsteadiness over four types of spiked-blunt body are investigated through wind tunnel
experiments at a freestream Mach number of 2.2 at 0° and 4° angle of attack. The flow …

Supersonic flow investigation of a drag reducing conical spike on a hemispherically blunted nose body

MDG Sarwar, P Kumar, S Das - Proceedings of the …, 2023 - journals.sagepub.com
Experiments and computations were made at a Mach number of 2.0 on a hemispherical
blunt nose body with a conical spike of L/D ratio= 1.0. Attempts were made to alter the …