Efficient methods for particle-resolved direct numerical simulation

Markus Uhlmann, Jos Derksen, Anthony Wachs, Lian Ping Wang, Manuel Moriche

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

In the present chapter we focus on the fundamentals of non-grid-conforming numerical approaches to simulating particulate flows, implementation issues, and grid convergence vs. available reference data. The main idea is to avoid adapting the mesh (and – as much as possible – the discrete operators) to the time-dependent fluid domain with the aim to maximize computational efficiency. We restrict our attention to spherical particle shapes (while deviations from sphericity are treated in a subsequent chapter). We show that similar ideas can be successfully implemented in a variety of underlying fluid flow solvers, leading to powerful tools for the direct numerical simulation of large particulate systems.

Original languageEnglish
Title of host publicationModeling Approaches and Computational Methods for Particle-laden Turbulent Flows
Subtitle of host publicationComputation and Analysis of Turbulent Flows
EditorsShankar Subamaniam, S. Balachandar
PublisherElsevier
Chapter5
Pages147-184
Number of pages38
ISBN (Electronic)9780323901338
ISBN (Print)9780323901345
DOIs
Publication statusPublished - 2023

Publication series

NameComputation and Analysis of Turbulent Flows

Bibliographical note

This work has received financial support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through project UH 242/11-1.

Keywords

  • computational efficiency maximization
  • direct-forcing
  • distributed Lagrange multiplier method
  • DUGKS
  • immersed boundary methods
  • lattice-Boltzmann
  • moving fluid–solid interface
  • Navier–Stokes equations
  • non-boundary-conforming approaches

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