Non-Newtonian flow in non-circular ducts

✍ Scribed by Nobuo Mitsuishi; Yoshiki Aoyagi

• Publisher: Elsevier Science
• Year: 1969
• Tongue: English
• Weight: 714 KB
• Volume: 24
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(69)80039-4

✦ Synopsis

The flow rate-pressure drop relationship for steady flow of non-Newtonian Sutterby-model fluid in non-circular ducts (rectangular and isosceles triangular ducts) has been derived using the \ variational method. The trial function of velocity profile is assumed to be similar to the velocity profile of a Newtonian fluid. The flow rate-pressure drop relationship was tested with experimental data on aqueous solutions of CMC and good agreement was obtained. Correlative equations for flow in circular and non-circular ducts are proposed These equations will enable the flow rate and oressure drop of the flow in a non-circular duct to be calculated from the experimental flow data in a circular pipe.