[HTML][HTML] Temperature measurement techniques for gas and liquid flows using thermographic phosphor tracer particles
Optical diagnostics for fluid temperature measurements continue to further our
understanding of flows involving heat transfer and/or chemical reactions, which are intrinsic …
understanding of flows involving heat transfer and/or chemical reactions, which are intrinsic …
Time-resolved particle image velocimetry
SJ Beresh - Measurement Science and Technology, 2021 - iopscience.iop.org
Time-resolved particle image velocimetry (TR-PIV) has become widespread in fluid
dynamics. Essentially a velocity field movie, the dynamic content provides temporal as well …
dynamics. Essentially a velocity field movie, the dynamic content provides temporal as well …
[HTML][HTML] Advances in burst-mode laser diagnostics for reacting and nonreacting flows
High-energy burst-mode lasers have enabled the development of kHz–MHz rate, multi-
dimensional diagnostics for characterizing highly dynamic and transient phenomena in …
dimensional diagnostics for characterizing highly dynamic and transient phenomena in …
Pulse-burst PIV in a high-speed wind tunnel
Time-resolved particle image velocimetry (TR-PIV) has been achieved in a high-speed wind
tunnel, providing velocity field movies of compressible turbulence events. The requirements …
tunnel, providing velocity field movies of compressible turbulence events. The requirements …
1-kHz two-dimensional coherent anti-Stokes Raman scattering (2D-CARS) for gas-phase thermometry
Two-dimensional gas-phase coherent anti-Stokes Raman scattering (2D-CARS)
thermometry is demonstrated at 1 kHz in a heated jet. A hybrid femtosecond/picosecond …
thermometry is demonstrated at 1 kHz in a heated jet. A hybrid femtosecond/picosecond …
Investigation of transient ignition processes in a model scramjet pilot cavity using simultaneous 100 kHz formaldehyde planar laser-induced fluorescence and CH …
JD Miller, SJ Peltier, MN Slipchenko, JG Mance… - Proceedings of the …, 2017 - Elsevier
Ignition processes in scramjet pilot cavities are highly transient events that are influenced by
factors including freestream Mach number and inlet geometry, turbulence intensity, cavity …
factors including freestream Mach number and inlet geometry, turbulence intensity, cavity …
20 kHz CH2O and OH PLIF with stereo PIV
SD Hammack, CD Carter, AW Skiba, CA Fugger… - Optics letters, 2018 - opg.optica.org
Planar laser-induced fluorescence (PLIF) of hydroxyl (OH) and formaldehyde (CH_2O)
radicals was performed alongside stereo particle image velocimetry (PIV) at a 20 kHz …
radicals was performed alongside stereo particle image velocimetry (PIV) at a 20 kHz …
Spatiotemporal analysis of turbulent jets enabled by 100-kHz, 100-ms burst-mode particle image velocimetry
kHz particle image velocimetry (PIV) is demonstrated using a double-pulsed, burst-mode
laser with a burst duration up to 100 ms. This enables up to 10,000 time-sequential vector …
laser with a burst duration up to 100 ms. This enables up to 10,000 time-sequential vector …
Vortex rings drive entrainment and cooling in flow induced by a spark discharge
Spark plasma discharges induce vortex rings and a hot gas kernel. We develop a model to
describe the late stage of the spark-induced flow and the role of the vortex rings in the …
describe the late stage of the spark-induced flow and the role of the vortex rings in the …
100-ps-pulse-duration, 100-J burst-mode laser for kHz–MHz flow diagnostics
A high-speed, master-oscillator power-amplifier burst-mode laser with∼ 100 ps pulse
duration is demonstrated with output energy up to 110 J per burst at 1064 nm and second …
duration is demonstrated with output energy up to 110 J per burst at 1064 nm and second …