[HTML][HTML] Sidewall effect on turbulent band in subcritical transition of high-aspect-ratio duct flow

K Kohyama, M Sano, T Tsukahara - Physics of Fluids, 2022 - pubs.aip.org
We numerically studied high-aspect-ratio channel flows with spanwise sidewalls, that is,
wide duct flows, in its subcritical turbulent transitional regime. The infinite channel flow is …

Nonlinear optimal perturbations and formation mechanism of localized wave packet in channel flow

L Zhang, J Tao - Physics of Fluids, 2023 - pubs.aip.org
The subcritical transition in a two-dimensional channel flow is characterized by the
emergence of localized wave packet (LWP). In this paper, the nonlinear nonmodal …

[HTML][HTML] Slip boundary effect on the critical Reynolds number of subcritical transition in channel flow

Y Xiao, L Zhang, J Tao - Theoretical and Applied Mechanics Letters, 2023 - Elsevier
In this letter, the effect of slip boundary on the origin of subcritical transition in two-
dimensional channel flows is studied numerically and theoretically. It is shown that both the …

Pattern preservation during the decay and growth of localized wave packet in two-dimensional channel flow

L Zhang, J Tao - Physics of Fluids, 2022 - pubs.aip.org
In this paper, the decay and growth of localized wave packet (LWP) in a two-dimensional
plane-Poiseuille flow are studied numerically and theoretically. When the Reynolds number …

Simulation of flows at low Reynolds numbers as applied to the design of aerodynamic surfaces for unmanned aerial vehicles

SY Dudnikov, PN Kuznetsov, AI Mel'nikova… - Russian Aeronautics, 2021 - Springer
The paper investigates the applicability of various turbulence models for accurate modeling
the aerodynamic surface design of unmanned aerodromeless transport aircraft. The …

Intermittency in transitional shear flows

Y Duguet - Entropy, 2021 - mdpi.com
The study of the transition from a laminar to a turbulent flow is as old as the study of
turbulence itself. Since the seminal pipe flow experiments of O. Reynolds at the end of the …

Учредители: Казанский национальный исследовательский технический университет им. АН Туполева-КАИ

СЮ ДУДНИКОВ, ПН КУЗНЕЦОВ… - ИЗВЕСТИЯ ВЫСШИХ … - elibrary.ru
Исследуется применимость различных моделей турбулентности для точного
моделирования задач проектирования несущих аэродинамических поверхностей …

[引用][C] Spanwise boundary dependency of subcritical transition in the wall-bounded flows for directed percolation perspective

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