Extending the laminar flow region over airframes is a potential way to reduce the skin friction drag, which in turn reduces fuel burn and greenhouse gas emissions. This paper introduces a numerical framework that allows for the inclusion of transition effects for high Reynolds number flows in a ...
This is because, at these Reynolds numbers, the size of the gas-filled cavities is greater and independent of air flow rate. Thus, ja:math falls to values as low as 0.4, regardless of the number of blades. Comparison with radial flow Scaba 6SRGT impellers in which the flat blade of ...
An experimental study of oscillatory pipe flow at transitional Reynolds number. J Fluid Mech 1980;... B.,R.,Ramaprian,... - 《Journal of Fluid Mechanics》 被引量: 65发表: 1980年 An experimental study of oscillatory pipe flow at transitional Reynolds numbers Cambridge University Press (CUP)...
The transitional flow in a pipe is important for delivery, but its characteristics remain to be explored. In this paper, the two-dimensional laser Doppler velocimetry (LDV) is used for the study, focusing on the attenuation characteristics of the axial velocity, the variation of the velocity ...
Meccanica (2024) 59:107–125 https://doi.org/10.1007/s11012-023-01744-4 Influence of Reynolds number and rotational number on the features of a transitional flow in short Taylor‑Couette cavity E. Tuliszka‑Sznitko Received: 17 July 2023 / Accepted: 27 November ...
Computational Fluid Dynamics (CFD) methods which employ eddy viscosity based RANS turbulence models that are formulated for high Reynolds number flow are not well suited for such low Reynolds number range as they cannot accurately model the formation of laminar separation bubble and subsequent onset ...
By contrast, in the fully turbulent flow region, the ability of the proposed pin fin channels to increase heat transfer performances decreases as the Reynolds number increases. When Re > 6 000, the overall thermal performance becomes lower than the others....
Yet, the mixing under laminar and transitional flow is rarely reported and thus is the focus of experimental study reported here. The experimental results show that the average Reynolds number and the outflows Reynolds number ratio controls degrees of the mixing at the pipe junctions. For cross ...
An experimental exploratory study of laminar, transitional and turbulent boundary layers on a slender, sharp cone at zero incidence in hypervelocity flow w... PD Germain,HG Hornung - 《Experiments in Fluids》 被引量: 72发表: 1997年 Transitional shock-wave/boundary-layer interactions in hypersonic ...
An experimental exploratory study of laminar, transitional and turbulent boundary layers on a slender, sharp cone at zero incidence in hypervelocity flow w... PD Germain,HG Hornung - 《Experiments in Fluids》 被引量: 72发表: 1997年 Transitional shock-wave/boundary-layer interactions in hypersonic ...