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We present simulations of coherent structures in compressible flows near thetransition to turbulence using the Dissipative Particle Dynamics (DPD) method.The structures we find are remarkably consistent with experimental observationsand DNS simulations of incompressible flows, despite a difference in Machnumber of several orders of magnitude. The bifurcation from the laminar flow isbistable and shifts to higher Reynolds numbers when the fluid becomes morecompressible. This work underlines the robustness of coherent structures in thetransition to turbulence and illustrates the ability of particle-based methodsto reproduce complex non-linear instabilities.

Coherent structures in Dissipative Particle Dynamics simulations of the transition to turbulence in compressible shear flows