Mishra, Rakesh, Singh, Sidh and Seshadri, V. (2002) Velocity distribution in horizontal pipes conveying non-uniform particles. International Journal of Fluid Mechanics Research, 29 (6). pp. 760-778. ISSN 1064-2277

Velocity distribution in a flow of multi-sized particulate solid-liquid mixtures was measured in horizontal pipes using an impact-type of probe with a modified pressure sensing mechanism. Measurements were done over a wide range of solid concentrations (0 to 40 % by weight) and flowrates. Quantitative data on the degree of asymmetry in the velocity profile and the location and magnitude of maximum velocity are presented. Results show that at a given concentration the degree of asymmetry in the velocity profile in the mid vertical plane reduces with the increase in flowrate and the point of maximum velocity shifts towards the center. At any given flowrate, the extent of asymmetry increases with the increase in solid concentration up to 30 % (by weight) and reduces thereafter marginally at higher concentration

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