DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Hydrodynamic fluctuations near a Hopf bifurcation: Stochastic onset of vortex shedding behind a circular cylinder

Journal Article · · Physical Review. E

Here, we investigate hydrodynamic fluctuations in the flow past a circular cylinder near the critical Reynolds number Rec for the onset of vortex shedding. Starting from the fluctuating Navier-Stokes equations, we perform a perturbation expansion around Rec to derive analytical expressions for the statistics of the fluctuating lift force. Molecular-level simulations using the direct simulation Monte Carlo method support the theoretical predictions of the lift power spectrum and amplitude distribution. Notably, we have been able to collect sufficient statistics at distances Re ⁡/ Rec – 1 = O ⁡(10–3) from the instability that confirm the appearance of non-Gaussian fluctuations, and we observe that they are associated with intermittent vortex shedding. These results emphasize how unavoidable thermal-noise-induced fluctuations become dramatically amplified in the vicinity of oscillatory flow instabilities and that their onset is fundamentally stochastic.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
Grant/Contract Number:
NA0003525
OSTI ID:
2472760
Report Number(s):
SAND--2024-13841J
Journal Information:
Physical Review. E, Journal Name: Physical Review. E Journal Issue: 4 Vol. 110; ISSN 2470-0045
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (45)

The Fokker-Planck Equation book January 1996
Noisy precursors of nonlinear instabilities journal March 1985
A convergence proof for Bird's direct simulation Monte Carlo method for the Boltzmann equation journal February 1992
Vortex shedding from confined micropin arrays journal January 2013
Hydrodynamic Fluctuations in Laminar Fluid Flow. I. Fluctuating Orr-Sommerfeld Equation journal July 2011
Ruelle-Pollicott Resonances of Stochastic Systems in Reduced State Space. Part II: Stochastic Hopf Bifurcation journal March 2020
Spectral Properties of Dynamical Systems, Model Reduction and Decompositions journal August 2005
Componentwise energy amplification in channel flows journal June 2005
Global stability of base and mean flows: a general approach and its applications to cylinder and open cavity flows journal November 2007
Bénard-von Kármán instability: transient and forced regimes journal September 1987
A numerical and theoretical study of the first Hopf bifurcation in a cylinder wake journal April 1994
Quasi-periodic cylinder wakes and the Ginzburg–Landau model journal May 1995
Koopman-mode decomposition of the cylinder wake journal June 2013
Two-dimensional compressible viscous flow around a circular cylinder journal November 2015
Weakly nonlinear evolution of stochastically driven non-normal systems journal November 2022
A numerical investigation of wall effects up to high blockage ratios on two-dimensional flow past a confined circular cylinder journal May 2004
Contributions to Non-Equilibrium Thermodynamics. I. Theory of Hydrodynamical Fluctuations journal January 1970
Direct simulation Monte Carlo convergence behavior of the hard-sphere-gas thermal conductivity for Fourier heat flow journal July 2006
Effects of weak noise on oscillating flows: Linking quality factor, Floquet modes, and Koopman spectrum journal September 2014
Direct simulation Monte Carlo investigation of the Richtmyer-Meshkov instability journal August 2015
Direct simulation Monte Carlo simulation of thermal fluctuations in gases journal April 2019
Direct simulation Monte Carlo on petaflop supercomputers and beyond journal August 2019
Hamiltonian Systems and Transformation in Hilbert Space journal May 1931
Enhancement of diffusive transport by non-equilibrium thermal fluctuations journal June 2011
Molecular Gas Dynamics And The Direct Simulation Of Gas Flows book May 1994
Nonequilibrium fluctuations studied by a rarefied-gas simulation journal August 1986
Effects of additive noise at the onset of Rayleigh-Bénard convection journal October 1992
Hydrodynamic fluctuations in the Kolmogorov flow: Linear regime journal May 1999
Hydrodynamic fluctuations in the Kolmogorov flow: Nonlinear regime journal November 2000
Liouvillian dynamics of the Hopf bifurcation journal October 2001
Molecular gas dynamics observations of Chapman-Enskog behavior and departures therefrom in nonequilibrium gases journal April 2004
Direct simulation Monte Carlo investigation of the Rayleigh-Taylor instability journal August 2016
Gas-kinetic simulation of sustained turbulence in minimal Couette flow journal July 2018
Turbulence at the edge of continuum journal January 2021
Effect of slip on vortex shedding from a circular cylinder in a gas flow journal June 2021
Noise-induced transitions past the onset of a steady symmetry-breaking bifurcation: The case of the sudden expansion journal May 2024
Molecular-Level Simulations of Turbulence and Its Decay journal February 2017
Navier-Stokes Equations Do Not Describe the Smallest Scales of Turbulence in Gases journal March 2022
Deviations from Linear Theory for Fluctuations below the Supercritical Primary Bifurcation to Electroconvection journal October 2000
Thermal-Noise Effect on the Transition to Rayleigh-Bénard Convection journal August 2003
Noise, Coherent Fluctuations, and the Onset of Order in an Oscillated Granular Fluid journal April 2004
Analysis of White Noise Limits for Stochastic Systems with Two Fast Relaxation Times journal January 2005
Vortex Dynamics in the Cylinder Wake journal January 1996
Receptivity to Thermal Noise of the Boundary Layer over a Swept Wing journal January 2017
Receptivity of High-Speed Boundary Layers to Kinetic Fluctuations journal July 2017