Perturbation Solution for Flow in Two-Cavity Dies-Reference-Cited by-同舟云学术

Perturbation Solution for Flow in Two-Cavity Dies

Published:1997-12-01 Issue:4 Volume:119 Page:1003-1008
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Ruschak K. J.¹,Weinstein S. J.¹

Affiliation:

1. Manufacturing Research and Engineering Organization, Eastman Kodak Company, Rochester, NY 14652-3701

Abstract

Dies having two distribution cavities and slots are sometimes used in film-forming applications demanding high uniformity. The flow distribution in the primary slot is evened by the secondary cavity and slot. The flow equations for such a die are solved in closed form for coat-hanger and T-shaped dies by a perturbation method. Limiting cases of the solutions reveal the operating mechanism, and the use of the solutions in a design problem is demonstrated.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/119/4/1003/5756534/1003_1.pdf

Reference17 articles.

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4. Durst, F., Lange, U., and Raszillier, H., 1996, “Minimization and Control of Random Effects on Film Thickness Uniformity by Optimized Design of Coating Die Internals,” The Mechanics of Thin Film Coatings, the Proceedings of the First European Coating Symposium, World Scientific, London.

5. Lee K. , and LiuT., 1989, “Design and Analysis of a Dual-Cavity Coat-Hanger Die,” Polymer Engineering and Science, Vol. 29, pp. 1066–1075.

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