Long-lasting emission from femtosecond excitation of nitrogen-based flows shows promise
as a useful mechanism for a molecular tagging velocimetry instrument. The technique …

Advances in microfluidic and nanofluidic technologies have been paralleled by advances in
methods for direct optical measurement of transport phenomena on these scales. A variety …

The accurate parameter prediction of a flow field is of practical significance to promote the
development of hypersonic flight. Velocity field prediction using deep learning is a promising …

In the present work, a non-intrusive diagnostic technique known as molecular tagging
velocimetry was used to collect quantitative freestream velocity measurements in the Mach 7 …

We demonstrate a new variation of molecular-tagging velocimetry for hypersonic ows based
on laser-induced uorescence. A thin line of nitric-oxide molecules is excited with a laser …

Picosecond laser electronic-excitation tagging (PLEET) was demonstrated in a Mach-6
Ludwieg tube at a repetition rate of 100 kHz using a 1064 nm, 100 ps burst-mode laser. The …

Molecular Tagging Velocimetry (MTV) is a whole field optical technique that relies on
molecules that can be turned into long lifetime tracers upon excitation by photons of …

The flame development prediction of a scramjet combustor forecasts the combustion state
and provides valuable information for active flow control. Experiments were performed on a …

This manuscript describes the wide variety of optical measurement techniques for
characterizing the flow in hypersonic wind tunnels. The introduction briefly describes …

Extraction of the wave structure of the flow field in the combustor of the scramjet is important
for main flow control and performance evaluation of the scramjet. In this study, a deep …