Searched for: subject:"mixing"
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Kaller, Thomas (author), Pasquariello, Vito (author), Hickel, S. (author), Adams, Nikolaus A. (author)
and an average Nusselt number of Nuxz = 371. The geometry and boundary conditions follow an experimental reference case and good agreement...
journal article 2019
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Mashhoodi, B. (author), Stead, D. (author), van Timmeren, A. (author)
The policies of Third National Energy Efficiency Action Plan for the Netherlands, regarding the reduction of household energy consumption (HEC), were made based on the unwritten presumption that the stimuli of HEC are similar in each and every location of the Netherlands, and that it therefore is possible to formulate an identical set of...
journal article 2019
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Elzas, A. (author)
Multiphase alloys such as advanced high strength steels show limited ductility due to interface decohesion at internal boundaries. This interface decohesion is caused by dislocations that pile-up at interfaces in the material, where they cause a stress concentration. This stress concentration in turn can lead to interface decohesion, resulting...
doctoral thesis 2019
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Elsinga, G.E. (author), da Silva, C.B. (author)
The average patterns of the velocity and scalar fields near turbulent/non-turbulent interfaces (TNTI), obtained from direct numerical simulations (DNS) of planar turbulent jets and shear free turbulence, are assessed in the strain eigenframe. These flow patterns help to clarify many aspects of the flow dynamics, including a passive scalar,...
journal article 2019
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Wei, P. (author), Mudde, R.F. (author), Uijttewaal, W.S.J. (author), Spanjers, H. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)
This study aimed to characterise the gas-liquid flow and mixing behaviour in a gas-mixed anaerobic digester by improving phase interaction modelling using Computational Fluid Dynamics (CFD). A 2D axisymmetric model validated with experimental data was set up using an Eulerian-Eulerian method. Uncertainty factors, including bubble size, phase...
journal article 2019
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Pecci, Filippo (author), Abraham, E. (author), Stoianov, Ivan (author)
The optimal placement and operation of pressure control valves in water distribution networks is a challenging engineering problem. When formulated in a mathematical optimization framework, this problem results in a nonconvex mixed integer nonlinear program (MINLP), which has combinatorial computational complexity. As a result, the considered...
journal article 2019
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Madadi, B. (author), van Nes, R. (author), Snelder, M. (author), van Arem, B. (author)
This study explores a network configuration concept for vehicle automation levels 3–4 (according to SAE classifications) in an urban road network having mixed traffic and demonstrates its potential impacts. We assume automated driving will be allowed on a selection of roads. For the remaining roads, manual driving (although supported by...
journal article 2019
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Daneshjoo, Z. (author), Shokrieh, M. M. (author), Fakoor, M. (author), Alderliesten, R.C. (author), Zarouchas, D. (author)
In order to understand the physics of the delamination onset in laminated composites, an experimental investigation of delamination growth is presented. The main objective of this paper is to demonstrate that delamination onset occurs at lower values than Gc defined by the ASTM standards, and that the strain energy release rate level at which...
journal article 2019
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Costarelli, I.S. (author), Kleinhans, R.J. (author), Mugnano, Silvia (author)
European countries are facing rising demand for affordable housing by a widespread and differentiated audience. Both in Italy and in the Netherlands policy-makers and practitioners address this emerging need by implementing new social housing projects targeting diverse social groups – such as students, young households, welfare dependents, and...
journal article 2019
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Elzas, A. (author), Thijsse, B.J. (author)
The behaviour of 11 differently oriented iron-precipitate interfaces under mixed loading conditions is studied with molecular dynamics simulations. We find that the interface structure and the change in this structure play a key role in the response to the loading. The structure change is influenced by both the loading history and the loading...
journal article 2019
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Rahbari, A. (author), Hens, R. (author), Jamali, S.H. (author), Ramdin, M. (author), Dubbeldam, D. (author), Vlugt, T.J.H. (author)
The combination of the TraPPE and OPLS/2016 force fields with five water models, TIP3P, SPC/E, OPC, TIP4P/2005 and TIP4P/EW was used to compute mixing enthalpies, excess chemical potentials and activity coefficients of water and methanol. Excess chemical potentials and activity coefficients were computed in an expanded version of the NPT...
journal article 2019
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Moreira Arouche, M. (author), Wang, W. (author), Teixeira De Freitas, S. (author), de Barros, Silvio (author)
The dissemination of composite materials introduces applications of hybrid structures with composite and metal parts. The development of reliable methodologies to evaluate the performance of these structures is required. In this work, the mixed-mode fracture behaviour of a bi-material adhesively bonded joint is investigated. A new strain...
journal article 2019
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Dekker, R. (author), van der Meer, F.P. (author), Maljaars, J. (author), Sluijs, L.J. (author)
Structures are subjected to cyclic loads that can vary in direction and magnitude, causing constant amplitude mode I simulations to be too simplistic. This study presents a new approach for fatigue crack propagation in ductile materials that can capture mixed-mode loading and overloading. The extended finite element method is used to deal with...
journal article 2019
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Daneshjoo, Z. (author), Shokrieh, M. M. (author), Fakoor, M. (author), Alderliesten, R.C. (author)
In this paper, by considering the absorbed energy in the fracture process zone and extension of the minimum strain energy density theory for orthotropic materials, a new mixed mode I/II failure criterion was proposed. The applicability of the new criterion, to predict the crack growth in both laminated composites and wood species, was...
journal article 2018
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Schielen, Ralph M.J. (author), Blom, A. (author)
We derive an idealized model of a gravel-sand river bifurcation and analyze its stability properties. The model requires nodal point relations that describe the ratio of the supply of gravel and sand to the two downstream branches. The model predicts changes in bed elevation and bed surface gravel content in the two bifurcates under...
journal article 2018
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Wang, H. (author), Liu, X. (author), Apostolidis, P. (author), Scarpas, Athanasios (author)
Crumb rubber-modified bitumen (CRMB) has been utilized in the asphalt paving industry for decades due to its various benefits. The complex interaction between bitumen and crumb rubber as well as the addition of warm-mix additives makes the typical laws of Newtonian fluids insufficient to describe the behaviors of highly modified bituminous...
journal article 2018
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Kumar, Sachin (author), Wang, Yihe (author), Poh, Leong Hien (author), Chen, B. Y. (author)
The Floating Node Method (FNM), first developed for modeling the fracture behavior of laminate composites, is here combined with a domain-based interaction integral approach for the generic fracture modeling of quasi-brittle materials from crack nucleation, propagation to final failure. In this framework, FNM is used to represent the...
journal article 2018
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Ilyas, Huma (author), Masih, Ilyas (author), van der Hoek, J.P. (author)
)/chlorine, O...
review 2018
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Wang, M. (author)
Literature has shown potentials of Connected/Cooperative Automated Vehicles (CAVs) in improving highway operations, especially on roadway capacity and flow stability. However, benefits were also shown to be negligible at low market penetration rates. This work develops a novel adaptive driving strategy for CAVs to stabilise heterogeneous...
journal article 2018
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Nieuwenhuis, E.M. (author), Post, J.A.B. (author), Duinmeijer, S.P.A. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
The accumulation of FOG (Fat, Oil and Grease) deposits in sewer pumping stations results in an increase in maintenance costs, malfunctioning of pumps and, a potential increase of wastewater spills in receiving open water bodies. It is thought that a variety of parameters (e.g. geometry of the pump sump, pump operation, socioeconomic...
journal article 2018
Searched for: subject:"mixing"
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