Abstract
An experimental investigation was performed for a pulp suspension flow in a channel with a partition plate, which is an extremely simplified model of the dispersion and rectifying parts of the hydraulic headbox of papermaking machines. Flow visualization and optical measurements of the fiber concentration were performed in the wake of the inserted flat plate. Characteristics of the pulp liquid flow were examined for five flow cases based on the flow patterns found in the author’s previous report (2013) for a duct. A discussion is given on the change in the distributions of the time-averaged and fluctuating fiber concentrations in the wake along the stream direction. Furthermore, the effects of the flow velocity on these distributions are clarified.
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