Schlieren and shadowgraph techniques are used around the world for imaging and
measuring phenomena in transparent media. These optical methods originated long ago in …

Volumetric particle image velocimetry (PIV) is a laser technique measuring three-component
velocity field in a volume. Common volumetric PIV techniques are defocusing PIV, multi-view …

We investigate the intermittency of the coupling behaviour in screeching twin round
supersonic jets at low Mach numbers across a range of nozzle spacings. Application of …

The structure of a screeching axisymmetric jet in the helical C mode at a nozzle pressure
ratio of 3.4 issuing from a convergent nozzle is studied using high-resolution particle image …

The mechanism underpinning the generation of screech tones has remained an open
question for many years. In this paper, direct experimental observations of the shock …

High resolution planar particle image velocimetry is used to measure turbulent quantities in
the region downstream of the Mach disk in an axisymmetric underexpanded jet issuing from …

In this paper, we present an experimental investigation of a supersonic rectangular nozzle
with aft deck used for three-stream engines. The jet utilizes a single expansion ramp nozzle …

Kiel probes have the potential to be a versatile tool for determining stagnation pressure gain
in rotating detonation combustors (RDCs), accompanying the commonly used equivalent …

A shock-focusing geometry is proposed for a pulse detonation combustor, which exhibits a
very short length for detonation initiation. This characteristic is imperative for the practical …

View Video Presentation: https://doi. org/10.2514/6.2021-0384. vid The University of
Tennessee Space Institute has constructed a Mach 4 Ludwieg Tube (M4LT) in the …