Particle imaging technique for size, velocity, and concentration measurements in particle-laden flows

W. T. Martin; Jaikrishnan R. Kadambi; Mark P. Wernet

doi:10.1117/12.293409

21 November 1997 Particle imaging technique for size, velocity, and concentration measurements in particle-laden flows

W. T. Martin, Jaikrishnan R. Kadambi, Mark P. Wernet

Proceedings Volume 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III; (1997) https://doi.org/10.1117/12.293409
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Particle laden flows are encountered in many fossil fuel and industrial processes such as the gas-solid flows in power plants, liquid-solid flows in coal and grain transportation and gas-liquid flows in combustors. These flows are not well understood, thus computational fluid dynamic modeling of these system has been hampered. Fundamental measurements are required to study the motion of the different phases to obtain an understanding of these flows and to develop reliable models. No reliable non-intrusive methods are available to fully characterize two phase flow fields, i.e. obtain particle size, velocity, concentration and concentration gradients at the same time over an extended area of interest. Intrusive sampling methods compromise the two phase flow field making the measurements suspect. Conventional optical methods do not disturb the flow but provide local point wise velocity measurements only. Particle size can be obtained for only spherical particles using the phase Doppler interferometric methods.

Citation Download Citation

W. T. Martin, Jaikrishnan R. Kadambi, and Mark P. Wernet "Particle imaging technique for size, velocity, and concentration measurements in particle-laden flows", Proc. SPIE 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III, (21 November 1997); https://doi.org/10.1117/12.293409

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