Evolution of channel flow and Darcy's law beyond the critical Reynolds number. [PDF]
Eur Phys J E Soft Matter, 2023 Abstract For incompressible channel flow, there is a critical state, characterized by a critical Reynolds number Re c and a critical wavevector m c along the channel direction, beyond which the channel flow becomes ...
Deng X, Sheng P.
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Fluids, 2023 The aim of this investigation is to show the solution for the critical Reynolds number in the flow around the sphere on the basis of theory of stochastic equations and equivalence of measures between turbulent and laminar motions.
Artur V. Dmitrenko +1 more
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Effect of seam characteristics on critical Reynolds number in footballs
Mechanical Engineering Journal, 2018 In recent years, the design of footballs, including the number and shape of the panels forming the surface of footballs, has undergone a significant change. However, panels of varied shapes and seams are combined in complex ways to form the surface shape
Kiyoshi NAITO +5 more
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Experimental investigation of the critical Reynolds number for bubbly two-phase flow [PDF]
INCAS Bulletin, 2023 The critical Reynolds number for dispersed bubbly two-phase flows, gas in liquid, was experimentally investigated. In this experiment, the gas was air and the liquid was water.
Marshall C. MCCRAY, Paul G. A. CIZMAS
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Vortex-induced vibration of cylinder under sub-critical Reynolds number
Zhongguo Jianchuan Yanjiu, 2022 ObjectiveIn order to achieve the accurate prediction of the amplitude response of a vortex-induced vibrating cylinder under the sub-critical Reynolds number, a method for establishing a Cl-A/D (lift coefficient-amplitude ratio)model of the forced ...
Li ZHOU +3 more
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Slip boundary effect on the critical Reynolds number of subcritical transition in channel flow
Theoretical and Applied Mechanics Letters, 2023 In this letter, the effect of slip boundary on the origin of subcritical transition in two-dimensional channel flows is studied numerically and theoretically.
Yue Xiao, Linsen Zhang, Jianjun Tao
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Inner-outer decomposition of wall shear stress fluctuations in turbulent channels
Theoretical and Applied Mechanics Letters, 2022 Fluctuating wall shear stress in turbulent channel flows is decomposed into small-scale and large-scale components. The large-scale fluctuating wall shear stress is computed as the footprints of the outer turbulent motions, and the small-scale one is ...
Limin Wang, Ruifeng Hu
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Two dimensional simulation of laminar flow by three- jet in a semi-confined space
Nonlinear Engineering, 2020 Equipment performance improvement in a wide range of working conditions is one of the major goals of aerodynamics. This goal can be achieved by the deformation of the object being examined or by using flow control techniques in active or inactive modes ...
Mosaddeghi Mohammad
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Critical Angle and Fundamental Frequency of Symmetric Airfoils at Low Reynolds Numbers [PDF]
Journal of Applied Fluid Mechanics, 2022 The unsteady vortex evolution of NACA 0012 airfoil is numerically investigated at low angles of attack ranging from 0° to 10° where the separation is performed from the trailing edge. The Reynolds number ranges between 1000 and 4000.
D. F. Kurtulus
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Transitions in the flow patterns and aerodynamic characteristics of the flow around staggered rows of cylinders. [PDF]
PLoS ONE, 2017 A two-dimensional numerical study of flow across rows of identical square cylinders arranged in staggered fashion is carried out. This study will unreveal complex flow physics depending upon the Reynolds number (Re) and gap spacing (g) between the ...
Shamsul Islam +4 more
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