Searched for: subject:"Simulation"
(1 - 20 of 830)

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Soleymani Shishvan, M. (author), Benndorf, J. (author)
This paper examines a problem related to dispatching materials to spreaders in coal (lignite) mines operated under the paradigm of continuously excavated material flow. In the considered particular case, complexity arises from different material types of overburden to be placed on the dump site in pre-defined patterns that guarantee...
journal article 2019
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Liu, Faqi (author), Yang, Hua (author), Yan, R. (author), Wang, Wei (author)
The behaviour of square steel tube confined reinforced concrete columns after fire exposure was studied experimentally and numerically in this paper. Eighteen stub columns were first heated following the ISO 834 standard fire including both heating and cooling phases, and were subsequently loaded to failure after cooling to ambient temperature....
journal article 2019
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Caro Ortiz, S.A. (author), Hens, R. (author), Zuidema, Erik (author), Rigutto, Marcello (author), Dubbeldam, David (author), Vlugt, T.J.H. (author)
This article explores how well vapor-liquid equilibria of pure components and binary mixtures of xylenes can be predicted using different force fields in molecular simulations. The accuracy of the Wolf method and the Ewald summation is evaluated. Monte Carlo simulations in the Gibbs ensemble are performed at conditions comparable to...
journal article 2019
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Brandt, C. (author)
The research field of geometry processing is concerned with the representation, analysis, modeling, simulation and optimization of geometric data. In this thesis, we introduce novel techniques and efficient algorithms for problems in geometry processing, such as the modeling and simulation of elastic deformable objects, the design of tangential...
doctoral thesis 2019
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Diaz Cortes, G.B. (author)
Simulation of flow through highly heterogeneous porous media results in large ill-conditioned systems of equations. In particular, solving the linearized pressure system can be especially time-consuming. Therefore, extensive efforts to find ways to address this issue effectively are required. In this work, we introduce a POD-based deflation...
doctoral thesis 2019
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van Bruggen, Anne (author), Nikolic, I. (author), Kwakkel, J.H. (author)
Coherent responses to important problems such as climate change require involving a multitude of stakeholders in a transformative process leading to development of policy pathways. The process of coming to an agreement on policy pathways requires critical reflection on underlying system conceptualizations and commitment to building capacity...
journal article 2019
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Garcia-Nieto, Sergio (author), Velasco-Carrau, Jesus (author), Paredes Valles, F. (author), Salcedo, Jose Vicente (author), Simarro, Raul (author)
This paper gathers the design and implementation of the control system that allows an unmanned Flying-wing to perform a Vertical Take-Off and Landing (VTOL) maneuver using two tilting rotors (Bi-Rotor). Unmanned Aerial Vehicles (UAVs) operating in this configuration are also categorized as Hybrid UAVs due to their ability of having a dual...
journal article 2019
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de Klerk, N.J.J. (author)
Batteries have found widespread use, especially in mobile devices. With the inevitable energy transition the demand for batteries will rise further. Batteries for large-scale storage, transport applications and mobile devices all have different demands, requiring the development of a range of battery types for the storage of electrical energy....
doctoral thesis 2019
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Geertsma, R.D. (author)
Shipping plays a crucial role in modern society, but has to reduce its impact on the environment. The commercial availability of power electronic converters and lithium-ion batteries provides an opportunity to improve performance of ships energy systems while reducing their environmental impact. However, the degrees of freedom in control for...
doctoral thesis 2019
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O'Brien, T.E. (author), Tarasinski, B.M. (author), Terhal, B.M. (author)
Quantum phase estimation (QPE) is the workhorse behind any quantum algorithm and a promising method for determining ground state energies of strongly correlated quantum systems. Low-cost QPE techniques make use of circuits which only use a single ancilla qubit, requiring classical post-processing to extract eigenvalue details of the system....
journal article 2019
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Steudtner, M. (author), Wehner, S.D.C. (author)
Quantum simulation of fermionic systems is a promising application of quantum computers, but to program them, we need to map fermionic states and operators to qubit states and quantum gates. While quantum processors may be built as two-dimensional qubit networks with couplings between nearest neighbors, standard fermion-To-qubit mappings do...
journal article 2019
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Wang, H. (author), Zhang, Yue (author), Zhang, Yi (author), Feng, Shuyin (author), Lu, Guoyang (author), Cao, Lintao (author)
Microwave heating is an encouraging heating technology for the maintenance, recycling, and deicing of asphalt pavement. To investigate the microwave heating properties of asphalt mixture, laboratory tests and numerical simulations were done and compared. Two types of Stone Mastic Asphalt (SMA) mixture samples (with basalt aggregates and steel...
journal article 2019
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Vila, A. (author), Pacha Sanjeevi, S.K. (author), Padding, J.T. (author), Pirker, Stefan (author)
Fractures of particle assemblies happen frequently in dense gas-solid systems leading to a notable heterogeneity in the particle configuration, especially in case of cohesive powders and non-spherical particle interlocking. In this work, we investigate the influence of such heterogeneities on the hydrodynamic drag by studying the idealized...
journal article 2019
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Knol, Arthur (author), Sharpans'kykh, Alexei (author), Janssen, S.A.M. (author)
Modern airports operate under high demands and pressures, and strive to satisfy many diverse, interrelated, sometimes conflicting performance goals. Airport performance areas, such as security, safety, and efficiency are usually studied separately from each other. However, operational decisions made by airport managers often impact several...
journal article 2019
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Lopes Dos Santos, Bruno F. (author), Gillis, M.M.D.J. (author)
Flight pass is a new concept in which airline passengers pre-purchase a number of flights for a flat fee. This flat flee can be customized by the passenger and has an expiring date. Being an innovative concept, the industry is still lacking analytical support to define the prices for these passes. This research is aimed to fill this research...
journal article 2019
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Llorente, Elena (author), Ragni, D. (author)
A study of the aerodynamic performance of a NACA 643418 airfoil with trailing edge serrations is presented. For the prediction of the changes in lift due to the serration installation, an empirical law is derived that can be extended to typical cambered airfoils for wind turbine applications. The law is deduced from 2D and 3D Reynolds‐averaged...
journal article 2019
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Mendoza, Victor (author), Bachant, Peter (author), Simao Ferreira, C. (author), Goude, Anders (author)
In the present work, the near-wake generated for a vertical axis wind turbine (VAWT) was simulated using an actuator line model (ALM) in order to validate and evaluate its accuracy. The sensitivity of the model to the variation of the spatial and temporal discretization was studied and showed a bigger response to the variation in the mesh size...
journal article 2019
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Kraan, O.D.E. (author), Dalderop, Steven (author), Kramer, G.J. (author), Nikolic, I. (author)
Understanding the possible transition pathways of the energy system requires the integration of human behaviour in energy system models. In order to model the influence of actor behaviour we have developed ACT (Agent-Based Model of Critical Transitions), an agent-based model inspired by an existing conceptualisation of critical transitions....
journal article 2019
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Saffarionpour, S. (author), de Jong, Tessa F. (author), van der Wielen, L.A.M. (author), Brouwer, Eric (author), Ottens, M. (author)
For simulating an adsorption/elution step for separation and recovery of flavor-active esters in beer in the presence of ethanol at various temperatures, and validating the predicted breakthrough behavior, equilibrium data on concentration of each ester is required. This work evaluates the application of frontal analysis method (FA) for...
journal article 2019
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Tsimpanogiannis, Ioannis N. (author), Moultos, O. (author), Franco, Luís F.M. (author), Spera, Marcelle B.de M. (author), Erdös, M. (author), Economou, Ioannis G. (author)
We present a detailed overview of classical molecular simulation studies examining the self-diffusion coefficient of water. The self-diffusion coefficient is directly associated with the calculations of tracer or mutual diffusion coefficient of mixtures and, therefore, is a fundamental transport property, essential for an accurate description...
review 2019
Searched for: subject:"Simulation"
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