DOI: 10.1615/TSFP6
PARTICLE MODULATION TO LOCAL TURBULENCE IN A TWO-PHASE ROUND JET
RÉSUMÉ
Turbulence modulations by particles in two-phase round jets were experimentally studied by means of Phase Doppler Anemometer (PDA). The measured turbulence intensities were presented to show the modulations induced by changing particle size, particle material density and particle mass loading ratios. Turbulence intensities are enhanced by the laden-particles in the near-fields, but it is significantly attenuated in the far-fields. The smaller, or heavier, particles have a more profound effect on the attenuation of turbulence intensities. As the particle mass loading ratio increases, the turbulence intensities are decreased. The turbulence modulations by particles depend on the energy production, transport and dissipation mechanisms between the turbulence and the laden-particles.