The Effect of Nozzle Shape on Fiber Orientation Inside the Headbox, 2007 TAPPI Papermakers and PIMA International Leadership Conference

Please Note: This document will be available in PDF format in the "My Electronic Documents" link on the home page once your order has been completed. Please make sure you have the latest version of Acrobat Reader. Click on the Acrobat Reader icon to check for the latest version, it’s FREE. To print a hardcopy of a PDF file correctly you must have a postscript printer. If you are not sure if your printer is a postscript printer please refer to your owner’s manual.

Motion and orientation of suspended fibers in turbulent flow affect transport, rheology, and turbulence characteristics of the suspension. Like in many industrial processes, turbulent fiber suspension is also of interest in pulp and paper industry where the quality of the final product is dependent in the orientation of fibers. In the paper industry, mechanical properties of manufactured paper are known to be anisotropic due to the anisotropic orientation of fibers induced by the flow kinematics while passing through a planar contraction with flat walls.