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The superfluid Reynolds number and the transition from potential flow to turbulence in superfluid $^4$He at mK temperatures

open access: yes, 2015
This comment is on Phys.Rev.Lett. 144, 155302 (2015) by M.T. Reeves, T.P. Billam, B.P. Anderson, and A.S. Bradley "Identifying a superfluid Reynolds number via dynamical similarity" where a new superfluid Reynolds number is introduced. This definition is
Schoepe, Wilfried
core   +1 more source

Experimental Study on Reynolds Number Evolution of Gas-Filled Coal

open access: yesGeofluids, 2019
The flow state of gas in coals is very complicated. We should pay attention to whether the permeability calculated by Darcy’s law is in accordance with the actual situation.
Chao Liu, Minghui Li, Honggang Zhao
doaj   +1 more source

What is the Reynolds Number of the Reynolds' Layer? [PDF]

open access: yes, 1999
Several authors have now suggested that some interstellar clouds above the plane of the Galaxy are interacting with the Reynolds' layer, the warm ionized gas extending well above (H~910 pc) the Galactic plane (Reynolds 1993). Characterizing the interaction between these clouds and their surroundings should be useful in understanding one source of ...
openaire   +2 more sources

Conforming Chebyshev spectral collocation methods for the solution of laminar flow in a constricted channel [PDF]

open access: yes
The numerical simulation of steady planar two-dimensional, laminar flow of an incompressible fluid through an abruptly contracting channel using spectral domain decomposition methods is described.
Karageorghis, Andreas   +1 more
core   +1 more source

Magnetized Ekman Layer and Stewartson Layer in a Magnetized Taylor-Couette Flow

open access: yes, 2008
In this paper we present axisymmetric nonlinear simulations of magnetized Ekman and Stewartson layers in a magnetized Taylor-Couette flow with a centrifugally stable angular-momemtum profile and with a magnetic Reynolds number below the threshold of ...
A. S. Gupta   +9 more
core   +1 more source

Prandtl number effect on near wall temperature profile in high-Reynolds number channel flows

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Prandtl number (Pr) effects on characteristics of the thermal boundary layer were investigated by means of Direct Numerical Simulations (DNS) in high-Reynolds number turbulent channel flows. The molecular Pr conditions were changed from 0.71 to 25.0, and
Shogo SARUWATARI, Yoshinobu YAMAMOTO
doaj   +1 more source

Performance Analysis of a Compressor Rotor Dedicated to Low-Power Drive Systems

open access: yesEnergies
This study investigates the efficiency evaluation of a compressor rotor designed for drive units requiring compressors with a power demand of less than 30 kW.
Natalia Kapela   +2 more
doaj   +1 more source

Relation between shear parameter and Reynolds number in statistically stationary turbulent shear flows

open access: yes, 2004
Studies of the relation between the shear parameter S^* and the Reynolds number Re are presented for a nearly homogeneous and statistically stationary turbulent shear flow.
Jörg Schumacher, Kolmogorov A. N.
core   +1 more source

High Reynolds number tests of the CAST-10-2/DOA 2 transonic airfoil at ambient and cryogenic temper ature conditions [PDF]

open access: yes
The transonic airfoil CAST 10-2/DOA 2 was investigated in several major transonic wind tunnels at Reynolds numbers ranging from Re=1.3 x 10(exp 6) to 45 x 10(exp 6) at ambient and cryogenic temperature conditions.
Demurie, F.   +3 more
core   +1 more source

Resolving high Reynolds numbers in SPH simulations of subsonic turbulence

open access: yes, 2011
Accounting for the Reynolds number is critical in numerical simulations of turbulence, particularly for subsonic flow. For Smoothed Particle Hydrodynamics (SPH) with constant artificial viscosity coefficient alpha, it is shown that the effective Reynolds
Price, Daniel J.
core   +1 more source

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