Optical diagnostics of particles in high-temperature flows

摘要

A compbination of novel methods for determining the temeprature,mean size,concentration and spectral refractive index of particles in high-temeprature flows is presented.The technique is based on empircal inverting the forward-scattering transmittance and spectral emission-absorptionmeasurements.The measurements were successfully inverted for the SiO_2,CeO_2,and ash particles in combustion flows.The particle temperature,concentration,mean size,and ocmplex resfractive index are retrieved.