A distributed lagrange multiplier based computational method for the simulation of particulate-Stokes flow

Nitin Sharma, Yong Chen, Neelesh A. Patankar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

In this paper we present a distributed lagrange multiplier (DLM) based Stokes flow algorithm for particulate flows. The entire fluid-particle domain is treated as a fluid. The "fluid" in the particle domain is ensured to move rigidly by adding a rigidity constraint. We modify the SIMPLER (Semi-Implicit Method for Pressure Linked Equations - Revised) algorithm for fluids (by Patankar [Numerical Heat Transfer and Fluid Flow, Taylor and Francis, London, 1980]), to account for the presence of the particle. The modification pertains to the presence of the rigidity constraint in the particle domain. We validate the algorithm with suitable test cases.

Original languageEnglish (US)
Pages (from-to)4716-4730
Number of pages15
JournalComputer Methods in Applied Mechanics and Engineering
Volume194
Issue number45-47
DOIs
StatePublished - Nov 1 2005

Keywords

  • Control volume
  • Direct numerical simulation (DNS)
  • Distributed lagrange multiplier (DLM) method
  • Particulate flows
  • SIMPLER

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

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