DESIGN OF AN EXTENSIONAL FLOW RHEOMETER: PHASE V

Authors
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN);S and J Engineering Inc, Toronto ONT (CAN)
Abstract
The report describes continued work on the extensional flow rheometer developed for DRES. Specific accomplishments of this work have been: extensions to the theory of flow in converging channels, recommendations for improvements to the rheometer to increase its ease of operation, several changes made to the instrument, and results obtained with a new international test fluid and with commercial coating fluids. A re-examination of the stress field in the instrument shows the theoretical analysis of flow in converging channels is valid for low Reynolds number flows. The recommendations for redesign centre on improvements to the software control program and to fluid handling in the pump. Several modifications have been made to the instrument during this work including upgrades to the computer and temperature control of the test fluid.
Report Number
DRES-CR-36-91 — Contract Report
Date of publication
15 Dec 1990
Number of Pages
27
DSTKIM No
91-04289
CANDIS No
71476
Format(s):
Hardcopy;Originator's fiche received by DSIS

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