GPU accelerated simulations of three-dimensional flow of power-law fluids in a driven cube

K. Jin, S. P. Vanka, R. K. Agarwal, B. G. Thomas

Research output: Contribution to journalArticle

Abstract

Newtonian fluid flow in two- and three-dimensional cavities with a moving wall has been studied extensively in a number of previous works. However, relatively a fewer number of studies have considered the motion of non-Newtonian fluids such as shear thinning and shear thickening power law fluids. In this paper, we have simulated the three-dimensional, non-Newtonian flow of a power law fluid in a cubic cavity driven by shear from the top wall. We have used an in-house developed fractional step code, implemented on a Graphics Processor Unit. Three Reynolds numbers have been studied with power law index set to 0.5, 1.0 and 1.5. The flow patterns, viscosity distributions and velocity profiles are presented for Reynolds numbers of 100, 400 and 1000. All three Reynolds numbers are found to yield steady state flows. Tabulated values of velocity are given for the nine cases studied, including the Newtonian cases.

Original languageEnglish (US)
Pages (from-to)36-56
Number of pages21
JournalInternational Journal of Computational Fluid Dynamics
Volume31
Issue number1
DOIs
StatePublished - Jan 2 2017

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Keywords

  • GPU
  • Non-Newtonian fluid
  • power-law fluid
  • three-dimensional cavity flow

ASJC Scopus subject areas

  • Computational Mechanics
  • Aerospace Engineering
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Mechanical Engineering

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