Effect of aspect ratio and inlet manifold shape on the laminar-to-turbulent transition of gas flow in rectangular microchannels
Sign Up to like & getrecommendations! Published in 2021 at "Experiments in Fluids"
DOI: 10.1007/s00348-021-03137-3
Abstract: A combined experimental and numerical study on the laminar-to-turbulent transition in microchannels using gas flow is presented. The effects of two geometric parameters, namely aspect ratio (height to width) of microchannels and inlet manifold shape,… read more here.
Keywords: gas; transition; shape; aspect ratio ... See more keywords
A two-equation local-correlation-based laminar-turbulent transition modeling scheme for external aerodynamics
Sign Up to like & getrecommendations! Published in 2020 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2020.106128
Abstract: Abstract A local-correlation-based laminar-turbulent transition model has been developed for external aerodynamic problems and coupled with the Spalart-Allmaras ( S − A ) turbulence model. This laminar-turbulent transition modeling scheme is then termed as the… read more here.
Keywords: transition; turbulence; turbulent transition; model ... See more keywords
Effect of isolated roughness element height on high-speed laminar–turbulent transition
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.160
Abstract: Understanding of the roughness-induced laminar–turbulent transition of supersonic and hypersonic flows is partly challenged by the intricate sensitivities presented by different correlation criteria. We investigate experimentally the effect of height for an isolated roughness element… read more here.
Keywords: turbulent transition; effect; laminar turbulent; height ... See more keywords
Common features between the Newtonian laminar–turbulent transition and the viscoelastic drag-reducing turbulence
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.567
Abstract: The transition from laminar to turbulent flows has challenged the scientific community since the seminal work of Reynolds (Phil. Trans. R. Soc. Lond. A, vol. 174, 1883, pp. 935–982). Recently, experimental and numerical investigations on… read more here.
Keywords: drag reducing; turbulence; turbulent transition; laminar turbulent ... See more keywords
Amplitude method of prediction of laminar-turbulent transition on a swept-wing
Sign Up to like & getrecommendations! Published in 2017 at "Fluid Dynamics"
DOI: 10.1134/s0015462817010070
Abstract: The amplitudemethod of prediction of laminar-turbulent transition on a swept-wing initiated by the simultaneous action of free-stream turbulence and surface roughness is developed. Generation of growing intrinsic perturbations in the boundary layer is described by… read more here.
Keywords: transition; transition swept; swept wing; turbulent transition ... See more keywords
Modern Approaches for Calculating Flow Parameters during a Laminar–Turbulent Transition in a Boundary Layer
Sign Up to like & getrecommendations! Published in 2018 at "High Temperature"
DOI: 10.1134/s0018151x18010042
Abstract: We analyze modern methods for calculating heat and hydrodynamic flow parameters in a boundary layer during the laminar–turbulent transition. The main approaches for describing the phenomenon of laminar–turbulent transition are examined. Each approach is analyzed.… read more here.
Keywords: laminar turbulent; boundary layer; turbulent transition; flow parameters ... See more keywords
Method of the Description of the Laminar-Turbulent Transition Position on a Swept Wing in the Flow with an Enhanced Level of Free-Stream Turbulence
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Mechanics and Technical Physics"
DOI: 10.1134/s0021894420020108
Abstract: A new experimental method for panoramic contactless determination of the laminar-turbulent transition position in a three-dimensional boundary layer is described. It is demonstrated that this method allows accurate determination of the transition region boundaries at… read more here.
Keywords: transition; stream turbulence; transition position; free stream ... See more keywords
Computational study of the laminar to turbulent transition over the SD7003 airfoil in ground effect
Sign Up to like & getrecommendations! Published in 2018 at "Thermophysics and Aeromechanics"
DOI: 10.1134/s0869864318040030
Abstract: In this work, we present a numerical study of the laminar-turbulence transition flow around a symmetrical air-foil at a low Reynolds number in free flow and near the ground surface at different angles of attack.… read more here.
Keywords: ground; transition; turbulent transition; laminar turbulent ... See more keywords
On computing the location of laminar–turbulent transition in compressible boundary layers
Sign Up to like & getrecommendations! Published in 2017 at "Russian Journal of Numerical Analysis and Mathematical Modelling"
DOI: 10.1515/rnam-2017-0001
Abstract: Abstract Evolution equations of small disturbances aimed to compute the location of a laminar–turbulent transition in boundary layers by the eN-method taking into account the compressibility and heat transfer are described and justified for aerodynamic… read more here.
Keywords: boundary layers; laminar turbulent; location laminar; turbulent transition ... See more keywords