Simulation and feedback control of the Ahmed body flow exhibiting symmetry breaking behaviour

DOI10.1017/jfm.2017.118zbMath1383.76117OpenAlexW2606322097WikidataQ108874352 ScholiaQ108874352MaRDI QIDQ5364643

O. Evstafyeva, L. Dalla Longa, A. S. Morgans

Publication date: 28 September 2017

Published in: Journal of Fluid Mechanics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1017/jfm.2017.118

zbMATH Keywords

bifurcationdrag reductionwakes

Mathematics Subject Classification ID

Dynamical systems in fluid mechanics, oceanography and meteorology (37N10) Wakes and jets (76D25)

Related Items (11)

Parallel Domain Decomposition-Based Solver for the Simulation of Flow over an Ahmed Reference Model ⋮ Attenuation of the unsteady loading on a high-rise building using feedback control ⋮ A near-wake survey of an Ahmed body comparing low-\& high-fidelity numerical models with experiments ⋮ Mean resolvent operator of a statistically steady flow ⋮ From thin plates to Ahmed bodies: linear and weakly nonlinear stability of rectangular prisms ⋮ The influence of background turbulence on Ahmed-body wake bistability ⋮ Numerical investigation of the wake bi-stability behind a notchback Ahmed body ⋮ Simulation of wake bimodality behind squareback bluff-bodies using LES ⋮ Simulations of the bi-modal wake past three-dimensional blunt bluff bodies ⋮ Numerical investigation on the salient features of flow over standard notchback configurations using scale resolving simulations ⋮ A numerical investigation of the asymmetric wake mode of a squareback Ahmed body – effect of a base cavity

Cites Work

• Subgrid-scale stress modelling based on the square of the velocity gradient tensor
• Diffusive dynamics and stochastic models of turbulent axisymmetric wakes
• Feedback control for form-drag reduction on a bluff body with a blunt trailing edge
• Dynamic mode decomposition of numerical and experimental data
• Global mode interaction and pattern selection in the wake of a disk: a weakly nonlinear expansion
• Stochastic modelling and feedback control of bistability in a turbulent bluff body wake
• Bifurcations and symmetry breaking in the wake of axisymmetric bodies
• On the need for a nonlinear subscale turbulence term in POD models as exemplified for a high-Reynolds-number flow over an Ahmed body
• Turbulent wake past a three-dimensional blunt body. Part 1. Global modes and bi-stability
• Koopman-mode decomposition of the cylinder wake

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