Results 111 to 120 of about 34,613 (317)
Outer layer turbulence intensities in smooth- and rough-wall boundary layers
, 2013 Clear differences in turbulence intensity profiles in smooth, transitional and fully rough zero-pressure-gradient boundary layers are demonstrated, using the diagnostic plot introduced by Alfredsson, Segalini & Örlü (Phys. Fluids, vol.
Alfredsson, Henrik +2 more
core +1 more source
Scalar Transport Characteristics Near the Turbulent/Non-Turbulent Interface in a Reactive Jet Flow
气体物理Turbulent/non-turbulent interface (T/NTI) layer separates the turbulent and non-turbulent regions. The study of T/NTI is helpful to deepen the understanding of mass transfer between turbulent and non-turbulent regions.
Qingqing CAO +3 more
doaj +1 more source
Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines
Advanced Engineering Materials, EarlyView.Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl +4 more
wiley +1 more source
Fluxes and (co-)variances of reacting scalars in the convective boundary layer
, 2002 The effects of chemistry on the transport and the mixing of reacting scalars in the convective atmospheric boundary layer (CBL) are investigated. To do this, we use large-eddy simulation (LES) to calculate explicitly the different terms of the flux and ...
Vinuesa, J. +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
wiley +1 more source
The onset of instability in unsteady boundary-layer separation
, 1996 The process of unsteady two-dimensional boundary-layer separation at high Reynolds number is considered. Solutions of the unsteady non-interactive boundary-layer equations are known to develop a generic separation singularity in regions where the ...
K. W. Cassel +5 more
core +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
An investigation of turbulent boundary layers with streamwise and spanwise pressure gradients [PDF]
An experimental comparison is made between two turbulent boundary layers produced in a low-speed water channel subjected to different pressure gradient distributions.
Pearce, Nicholas F.
core
Turbulent fluctuations above the buffer layer of wall-bounded flows
, 2008 The behaviour of the velocity and pressure fluctuations in the logarithmic and outer layers of turbulent flows is analysed using spectral information and probability density functions from channel simulations at Reτ _2000.
Jiménez Sendín, Javier, Hoyas, Sergio
core +1 more source
Bluff bodies in deep turbulent boundary layers: Reynolds-number issues [PDF]
, 2007 It is generally assumed that flows around wall-mounted sharp-edged bluff bodies submerged in thick turbulent boundary layers are essentially independent of the Reynolds number Re, provided that this exceeds some (2–3) × 104.
Hoxey, Roger P. +2 more
core +1 more source