DEFINITION:

Characterisation of reactive flows requires the knowledge of several parameters: concentration and temperature of various species, as well as velocity and turbulence. These quantities are currently obtained by non intrusive optical techniques based on either molecular or particle scattering.

(Source: ACARE Domain 312)

SUBDOMAINS:

1. Measurements of temperatures and concentrations: CARS (Coherent Anti-Stokes Raman Scattering), LIF (Laser Induced Fluorescence), LII (Laser Induced Incandescence), DFWM (Degenerated Four Wave Mixing), REMPI (Resonantly Enhanced Multi-Photon Ionisation), DLAS (Diode Laser Absorption Spectroscopy), EBF (Electron Beam Fluorescence).
2. Velocity measurements: LDV (Laser Doppler Velocimetry), PIV (Particle Image Velocimetry), DGV (Doppler Global Velocimetry), PDA (Phase Doppler Anemometry: velocity and particle size), L2F (Laser Two-Focus Velocimetry).