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pro vyhledávání: '"Kashyap, Pavan V."'
We analyze a one-dimensional two-scalar fields reaction advection diffusion model for the globally subcritical transition to turbulence. In this model, the homogeneous turbulent state is disconnected from the laminar one and disappears in a tipping c
Externí odkaz:
http://arxiv.org/abs/2407.04993
Publikováno v:
Phys. Rev. Lett. 129, 244501 (2022)
Laminar-turbulent pattern formation is a distinctive feature of the intermittency regime in subcritical plane shear flows. By performing extensive numerical simulations of the plane channel flow, we show that the pattern emerges from a spatial modula
Externí odkaz:
http://arxiv.org/abs/2205.05652
Publikováno v:
Entropy 2020, 22(9), 1001; https://www.mdpi.com/1099-4300/22/9/1001
The transitional regime of plane channel flow is investigated {above} the transitional point below which turbulence is not sustained, using direct numerical simulation in large domains. Statistics of laminar-turbulent spatio-temporal intermittency ar
Externí odkaz:
http://arxiv.org/abs/2009.06453
Publikováno v:
Phys. Rev. Fluids 5, 103902 (2020)
The proliferation of turbulence in subcritical wall-bounded shear flows involves spatially localised coherent structures. Turbulent spots correspond to finite-time nonlinear responses to pointwise disturbances and are regarded as seeds of turbulence
Externí odkaz:
http://arxiv.org/abs/2009.02108
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