Computer-aided analysis of a linearly tapered coat-hanger die

[[abstract]]©1988 Wiley - We describe the computer-aided engineering analysis of a linearly tapered coat-hanger die in this paper. The general governing equation for low distribution inside the die was derived first. On the basis of this equation, we have developed the design formula for a die to deliver uniform flow. In addition, we have also examined the variations of lateral flow uniformities and residence time distributions of polymeric liquids under several different design and operating conditions: (1) using manifolds with non-circular cross-sections, (2) adjusting production widths, (3) delivering fluids with different viscosities, and (4) enlarging manifolds for practical production considerations.[[department]]化學工程學