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Massively Parallel Simulations of Chain Formation and Restructuring Dynamics in a Magnetorheological Fluid

[+] Author Affiliations
Steven G. Sherman, Derek A. Paley, Norman M. Wereley

University of Maryland, College Park, MD

Paper No. SMASIS2011-5188, pp. 651-658; 8 pages
doi:10.1115/SMASIS2011-5188
From:
  • ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1
  • Scottsdale, Arizona, USA, September 18–21, 2011
  • ISBN: 978-0-7918-5471-6
  • Copyright © 2011 by ASME

abstract

Magnetorheological fluids consist of micron sized iron particles mixed in a carrier fluid, and are commonly used in adaptive dampers. Current simulations of MR fluids have been limited to thousands of particle and have been unable to simulate a a practical fluid volume (∼ mm3 ) with a high solids loading (∼ 25 vol %). In this paper, we use NVIDIA’s CUDA programming environment to simulate over one million particles. Using these simulations, we can dynamically simulate chain formation and restructuring in a practical millimeter scale fluid volume with realistic solids loading. The chain structures can be characterized in terms of extent and number, as well as obtaining physical metrics such as yield stress.

Copyright © 2011 by ASME

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