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A Search Algorithm for Particle Laden Flows: Application to Nanofluids

[+] Author Affiliations
Hossein Afshar

Islamic Azad University, East Tehran Branch, Tehran, Iran

Mehrzad Shams, Seyed Mojtaba Mousavi Nainian

K.N. Toosi University of Technology, Tehran, Iran

Goodarz Ahmadi

Clarkson University, Potsdam, NY

Paper No. ESDA2010-25149, pp. 673-680; 8 pages
doi:10.1115/ESDA2010-25149
From:
  • ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
  • ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 5
  • Istanbul, Turkey, July 12–14, 2010
  • Conference Sponsors: International
  • ISBN: 978-0-7918-4919-4 | eISBN: 978-0-7918-3877-8
  • Copyright © 2010 by ASME

abstract

Evaluating the particle location in particle-laden flows is the most important parameter for calculating the two-phase flow parameters and also controls the computational time. In heat conducting nanofluids the volume fraction of particles is typically less than 3%. Nevertheless the their effect on heat transfer is important. In this paper, a new method for coupling thermal effects of dispersed and continuum phases is introduces. The L-N-R search algorithm, which can be used in complex geometries and unstructured grid is used for specifying particle location. For low volume fractions, particles-fluid interaction is considered only for the energy exchange. This exchange is done using a binary search tree. It is shown general usage of nanofluids in microchannels should be done by special considerations.

Copyright © 2010 by ASME

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