Analysis of the possibility of using laser Doppler anemometer for the investigation of highly dust-laden flows

The capabilities of laser Doppler anemometer are investigated from the standpoint of measurement of the velocity of particles of a highly concentrated heterogeneous flow. The dependences of the key characteristics of Doppler signal on the mode of flow are analyzed. The parameters of heterogeneous flow, in the case of which a laser Doppler anemometer may be employed, are determined experimentally.