A new technique for velocity-field measurements in fine granular systems is introduced. The hot-wire anemometry, mainly used for gaseous flows, is applied to nanopowders and is found to be a viable experimental method for flow measurements. A generic chute flow of aluminum oxide C and Aerosil A-90 and A-380 powders through a vertical channel is chosen as a test platform, and the results suggest that the hot-wire anemometry is a favorable option for nanopowder measurements.
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