Short-time proper orthogonal decomposition of time-resolved schlieren images for transient jet screech characterization
Abstract Short-time Proper Orthogonal Decomposition (POD) is proposed as an image-
based technique to study the transient jet screech characteristics of moderately under …
based technique to study the transient jet screech characteristics of moderately under …
Effects of bevelled nozzles on standoff shocks in supersonic impinging jets
Moderately under-expanded jets issuing from a circular baseline and two bevelled circular
nozzles impinging upon a perpendicular flat plate were experimentally studied. The effects …
nozzles impinging upon a perpendicular flat plate were experimentally studied. The effects …
Mitigation of under-expanded supersonic jet noise through stepped nozzles
An experimental investigation into noise reduction of supersonic jets through nozzle trailing-
edge modifications was conducted, whereby far-field acoustic measurements were captured …
edge modifications was conducted, whereby far-field acoustic measurements were captured …
Numerical study of supersonic mixed compression air intake with an array of air jets
NK Gahlot, NK Singh - Journal of Fluids Engineering, 2021 - asmedigitalcollection.asme.org
Computational study of flow physics inside the mixed compression air intake has been
carried out with and without air jets (AJs) at design Mach number of 2.2. Reynolds-averaged …
carried out with and without air jets (AJs) at design Mach number of 2.2. Reynolds-averaged …
Large-Eddy Simulations of a Supersonic Impinging Jet Using OpenFOAM
Supersonic impinging jets are a versatile configuration that can model the compressible
flows of cold-spray manufacturing and vertical take-off-and landing strategy. In this work …
flows of cold-spray manufacturing and vertical take-off-and landing strategy. In this work …
Investigation on wall shear stress measurement in supersonic flows with shock waves using shear-sensitive liquid crystal coating
J Zhao - Aerospace science and Technology, 2019 - Elsevier
Wall shear stress (skin friction) is one of the fundamental surface quantities in aerodynamics
but its measurement remains challenging. This paper studies the measurement of wall shear …
but its measurement remains challenging. This paper studies the measurement of wall shear …
Study of decay, spread, and shock structure of a supersonic jet issuing from a CD nozzle with semi-circular grooves
S Ilakkiya, BTN Sridhar - Thermophysics and Aeromechanics, 2022 - Springer
Two diametrically opposite internal grooves were introduced in the diverging section of a
supersonic nozzle. Experiments were conducted to find the effect of grooves at three …
supersonic nozzle. Experiments were conducted to find the effect of grooves at three …
[HTML][HTML] Tomographic Background-Oriented Schlieren for Axisymmetric and Weakly Non-Axisymmetric Supersonic Jets
The Schlieren technique is widely adopted for visualizing supersonic jets owing to its non-
invasiveness to the flow field. However, extending the classical Schlieren method for …
invasiveness to the flow field. However, extending the classical Schlieren method for …
Effect of Mach number and turbulent characteristics of chevrons nozzles in high-speed aircraft jet-CFD analysis by aero acoustic phenomenon
S Prakash, KS Babu, A Pankaj, AK Ajit - AIP Conference …, 2023 - pubs.aip.org
In this manuscript, compare jet characteristics of a base nozzle, jet characteristics of a nozzle
of same dimension with different chevron structures present with a rectangular slot of …
of same dimension with different chevron structures present with a rectangular slot of …
Mixing enhancement with minimal thrust loss for the Mach 1.76 jet issuing from different beveled collar nozzles
The main objective of the present investigation is to enhance the jet mixing by introducing a
nozzle collar exit inclination having bevel angles of 30°, 45°, and 60°. In addition to this, the …
nozzle collar exit inclination having bevel angles of 30°, 45°, and 60°. In addition to this, the …