Results 1 to 10 of about 716,438 (286)

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, Sungchan HONG, Masaaki KOIDO, Masao NAKAYAMA, Keiko SAKAMOTO, Takeshi ASAI   +5 more
doaj   +4 more sources

Determination of Critical Reynolds Number for the Flow Near a Rotating Disk on the Basis of the Theory of Stochastic Equations and Equivalence of Measures

Fluids, 2020
The determination of the flow regime of liquid and gas in power plants is the most important design task. Performing the calculations based on modern calculation methods requires a priori knowledge of the initial and boundary conditions, which ...
Artur V. Dmitrenko
doaj   +2 more sources

Evolution of channel flow and Darcy’s law beyond the critical Reynolds number [PDF]

The European Physical Journal E, 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 ...
Xiaohui Deng, Ping Sheng
openaire   +5 more sources

The effect of surface roughness on aerodynamic forces and vibrations for a circular cylinder in the critical Reynolds number range

Journal of Wind Engineering and Industrial Aerodynamics, 2019
The excitation mechanism of vibrations of circular cylinders in the critical Reynolds number range remains unclear. These vibrations have been observed in wind tunnels many times but rarely in the field.
John Macdonald, Qingkuan Liu
exaly   +2 more sources

Is the critical Reynolds number universal? [PDF]

Journal of Experimental and Theoretical Physics, 2002
7 pages, 4 ...
Novopashin, Sergey, Muriel, Amador
openaire   +3 more sources

Theoretical Estimates of the Critical Reynolds Number in the Flow around the Sphere on the Basis of Theory of Stochastic Equations and Equivalence of Measures

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, Vladislav M. Ovsyannikov   +1 more
doaj   +3 more sources

Investigation of Drag Coefficient at Subcritical and Critical Reynolds Number Region for Circular Cylinder with Helical Grooves

International Journal of Maritime Technology, 2017
Drag reduction of an object is the major concern in many engineering applications. Experimental studies have been carried out on circular cylinder with helical grooves in a subsonic wind tunnel.
Dewan Hasan Ahmed, Md. Ashraful Haque, Md, Abdur Rauf   +2 more
doaj   +2 more sources

Galloping of an elliptical cylinder at the critical Reynolds number and its quasi-steady prediction

Journal of Wind Engineering and Industrial Aerodynamics, 2017
Dry galloping of inclined cables has been shown to have a strong relation to the critical Reynolds number. This study considers the occurrence of galloping of an elliptical cylinder at the critical Reynolds number under normal wind and assesses the quasi-
Cung H Nguyen, John Macdonald, Qingkuan Liu   +2 more
exaly   +2 more sources

Critical Reynolds number for nonlinear flow through rough-walled fractures: The role of shear processes

Water Resources Research, 2014
Kourosh Shahriar, Morteza Javadi
exaly   +2 more sources

Flow characteristics of elastically mounted slit cylinder at sub-critical Reynolds number [PDF]

The Physics of Fluids, 2021
a) Author to whom correspondence should be addressed. Electronic mail: ashoke@iitk.ac.in Flow Characteristics of Elastically Mounted Slit Cylinder at Sub-critical Reynolds Number Mayank Verma, Alok Mishra, Ashoke De a) Department of Aerospace Engineering,
Mayank Verma, A. Mishra, A. De
semanticscholar   +1 more source