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Plastic Flow Establishment in Tubes: A Comparison of Pressure Gradient and Yield Stress Change Effects

[+] Author Affiliations
Mario F. Letelier, Dennis A. Siginer, Gonzalo A. Uribe, Juan Stockle

University of Santiago of Chile, Santiago, Chile

Paper No. IMECE2013-62344, pp. V07AT08A024; 4 pages
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 7A: Fluids Engineering Systems and Technologies
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5631-4
  • Copyright © 2013 by ASME


The transient flow that follows an instantaneous change of yield stress of a magnetorheological (MR) fluid in round tubes is analyzed by an exact analytical method. The time required to establish steady flow of MR fluids after a sudden yield stress change as well as for combinations of step-change in the pressure gradient and yield stress is determined.

Copyright © 2013 by ASME



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