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Coherent structures in dissipative particle dynamics simulations of the transition to turbulence in compressible shear flows
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van de Meent, Jan-Willem, Morozov, Alexander, Somfai, Ellák, Sultan, Eric and van Saarloos, Wim. (2008) Coherent structures in dissipative particle dynamics simulations of the transition to turbulence in compressible shear flows. Physical Review E, Vol.78 (No.1). Article: 015701(R). ISSN 1539-3755
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Official URL: http://dx.doi.org/10.1103/PhysRevE.78.015701
Abstract
We present simulations of coherent structures in compressible flows near the transition to turbulence using the dissipative particle dynamics method. The structures we find are remarkably consistent with experimental observations and direct numerical simulations �DNS� simulations of incompressible flows, despite a difference in Mach number of several orders of magnitude. The bifurcation from the laminar flow is bistable and shifts to higher Reynolds numbers when the fluid becomes more compressible. This work underlines the robustness of coherent structures in the transition to turbulence and illustrates the ability of particle-based methods to reproduce complex nonlinear instabilities.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Centre for Complexity Science Faculty of Science > Physics |
| Journal or Publication Title: | Physical Review E |
| Publisher: | American Physical Society |
| ISSN: | 1539-3755 |
| Date: | 7 July 2008 |
| Volume: | Vol.78 |
| Number: | No.1 |
| Page Range: | Article: 015701(R) |
| Identification Number: | 10.1103/PhysRevE.78.015701 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | http://wrap.warwick.ac.uk/id/eprint/45104 |
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