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Jing, H. (author), Li, C. (author), Zhou, B. (author)
In this paper, some five-point finite difference schemes for steady convection-diffusion problems are presented. To begin with, we use the finite volume method (FVM) to discretize the convection-diffusion equation. After that, we present two five-point difference schemes for the approximation of the first order derivatives on faces, one of which...
conference paper 2006
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Zhang, L. (author), Li, X. (author), Li, D. (author), Zhou, C. (author)
Important engineered slopes are often heavily instrumented and their performance routinely monitored through these instruments. The evaluation of the safety of the slopes based on the monitored information is however a challenge. A systematic method is presented in this paper for evaluating the slope safety by combining multi-source monitoring...
conference paper 2015
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The interaction of a normal shock with isotropic turbulence (IT) represents a basic problem for studying some of the phenomena associated with high speed flows, such as hypersonic flight, supersonic combustion and Inertial Confinement Fusion (ICF). In general, in practical applications, the shock width is much smaller than the turbulence scales...
conference paper 2015
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The influence of spanwise traveling transversal surface waves on the near-wall flow field of turbulent boundary layers with and without adverse pressure gradient is investigated by particle-image velocimetry (PIV) and micro-particle tracking velocimetry (μ-PTV). A detailed analysis of the velocity profile immediately downstream of the actuated...
conference paper
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The drag reduction effect of a semi-circular riblet-structured surface in a turbulent boundary layer is experimentally investigated using the micro-pillar shear stress sensor MPS3. The MPS3 sensor is a novel tool for the quantitative measurement of the wall-shear stress distribution and possesses a high spatial and temporal resolution. The...
conference paper 2015
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Nayak, A.R. (author), Li, C. (author), Kiani, B. (author), Katz, J. (author)
A submersible PIV system has been deployed to characterize mean flow and turbulence in the inner part of the coastal ocean bottom boundary layer (BBL), and their interaction with the bottom roughness. Five large datasets, each consisting of ~20,000 velocity distributions, are chosen for analysis to represent flow conditions spanning a range of...
conference paper 2013
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Li, A. (author), Norinaga, K. (author), Deutschmann, O. (author)
Numerical simulation of materials synthesis based on detailed models for the chemical kinetics and transport processes is expected to support development and optimization of production processes. Exemplarily, chemical vapor deposition and infiltration of pyrolytic carbon for the production of carbon fiber reinforced carbon is studied by recently...
conference paper 2006
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Li, J. (author), Tian, Y. (author), Cassidy, M.J. (author)
Natural soil is one of the most variable materials as a result of physical and chemical changes. The variation in soil properties significantly affects the failure mechanism and bearing capacity of a footing. This effect is further complicated by considering the spatial correlation of the soil properties. The purpose of this study is to...
conference paper
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Li, S. (author), Zhou, Y. (author)
Abstract only.
conference paper 2013
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Li, Y. (author), Vardon, P.J. (author), Hicks, M.A. (author)
A preliminary probabilistic study of the stability of a circular drift excavated for a radioactive waste repository in the French Callovo-Oxfordian claystone is presented and discussed. An analytical mechanical model assuming isotropic elastic behaviour and linear plastic softening was used. Particular emphasis here is placed on the uncertainty...
conference paper 2016
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Tessicini, F. (author), Li, N. (author), Leschziner, M.A. (author)
The focus of the paper is on the performance of an approximate 'zonal' near- wall treatment applied within a LES strategy to the simulation of flow separating from a three-dimensional hill at high Reynolds numbers. In the zonal scheme, the state of the near-wall layer of the flow is described by parabolized Navier-Stokes equations solved on a...
conference paper 2006
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Li, T. (author), Jiang, J. (author), Aldewereld, H.M. (author), De Vos, M. (author), Dignum, M.V. (author), Padget, J. (author)
conference paper 2013
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Compressible Rayleigh-Taylor turbulent mixing (CRTM) induced by Rayleigh-Taylor instability occurs when a compressible fluid of heavy density is accelerated or supported against gravity by a compressible fluid of light density, and is of fundamental importance in applications from combustion, to inertial confinement fusion, and to astrophysics....
conference paper 2015
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Jiang, S. (author), Li, D. (author), Wei, B. (author)
The effect of probability distributions on the slope reliability is highlighted in this study since the lognormal distribution is often used to characterize the variability of soil properties to avoid negative values. A multiple response-surface based MCS method for slope reliability analysis in spatially variable soils is proposed. A...
conference paper 2015
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Lundberg, A.B. (author), Li, Y. (author)
A full geotechnical risk analysis includes site investigation, model simplification and analysis. The site characterization forms the basis for the choice of the soil parameters used in the subsequent analysis, but the soil data is normally analyzed with crude methods that do not include the effect of the soil variability. A case study is here...
conference paper 2015
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Li, L. (author), Chu, X. (author)
The need for system failure probability, pf , of soil slope stability that takes into account the spatial variation of soil properties has been acknowledged by the geotechnical profession. The spatial variations of cohesion and friction angle for a c-ϕ soil slope were modeled by one dimensional vertical random field respectively. The cross...
conference paper 2015
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Bouman, P. (author), Van der Hurk, E. (author), Kroon, L. (author), Li, T. (author), Vervest, P. (author)
During the past decades, the modelling of transport demand by activity based methods has gained considerable attention from the scientific community. Such demand models offer a greater modelling flexibility than traditional models, by modelling transport demand as a phenomenon which emerges from the desire to perform activities at different...
conference paper 2013
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Li, Y. (author), Hicks, M.A. (author), Vardon, P.J. (author)
Long slopes with variable material properties have a variety of different failure modes that are affected by the correlation distances of the material properties and the geometry and total length of the slope. This work follows previous research examining the consequences of increasing slope length, in which analyses were limited by the...
conference paper 2015
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Li, X. (author), Leigh, S. (author)
This research has explored environmental sustainability related literature and has performed a case study analysis on a timber and building material wholesale company relating to its environmental aspects. Published work focuses on either environmental management systems (EMS) or environmental performance evaluation (EPE). The integration of...
conference paper 2010
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Tsaoulidis, D. (author), Li, Q. (author), Angeli, P. (author)
The hydrodynamic characteristics of liquid-liquid segmented flow in small channels were studied using bright field ?-PIV. Experiments were carried out in a 0.5 mm ID channel made of PFA and flow parameters key for mass transfer applications, such as film thickness, circulation patterns and plug length were measured. The two test liquids used...
conference paper 2013
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