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Yong, Wen Pin (author), Menke, Hannah (author), Maes, Julien (author), Geiger, S. (author), Bakar, Zainol Affendi Abu (author), Lewis, Helen (author), Buckman, Jim (author), Bonnin, Anne (author), Singh, Kamaljit (author)Microporosity is commonly assumed to be non-connected porosity and not commonly studied in geoengineering industry. However, the presence of micropores plays a key role in connecting macropores and it can contribute significantly to the overall flow performance. In this study, targeted CO<sub>2</sub> storage carbonate fields in Southeast Asia...conference paper 2024
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- Danczul, Tobias (author), Hetebrij, Wouter (author), Khalighi, Faeze (author), Kogler, Lukas (author), Lahaye, D.J.P. (author), Luckins, Ellen (author), Munters, Wim (author), Neunteufel, Michael (author), Vuik, Cornelis (author) conference paper 2022
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Jones, S.A. (author), Bos, Robert (author), Lastovka, Vaclav (author), Farajzadeh, R. (author), Riyami, Mohammed (author)The efficiency of oil processes depends on the product of volumetric sweep and microscopic sweep. In oil recovery by steam injection the microscopic sweep is generally good; however, obtaining a good volumetric sweep can be challenging. This is caused by low density and viscosity of the injected steam combined with the reservoir heterogeneity...conference paper 2022
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Estrado, Erron (author), Turrin, M. (author), Eigenraam, P. (author)Wind analysis for the structure of buildings is a challenging process. The increasing strength and frequency of wind events due to climate change only add higher demands. In addition, high-rise buildings are growing in number and include many of unconventional shape. Current methods used in practice for calculating structural wind response...conference paper 2020
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Möller, M. (author), Jaeschke, Andrzej (author)High-performance computing platforms are becoming more and more heterogeneous, which makes it very difficult for researchers and scientific software developers to keep up with the rapid changes on the hardware market. In this paper, the open-source project FDBB (Fluid Dynamics Building Blocks) is presented, which eases the development of...conference paper 2020
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Pini, M. (author), de Servi, C.M. (author)This paper documents a numerical study on entropy generation in zero-pressure gradient, laminar boundary layers of adiabatic non-ideal compressible fluid flows. The entropy generation is expressed in terms of dissipation coefficient $$C:\mathrm {d}$$ and its dependency on free-stream Mach number, fluid molecular complexity, and flow non...conference paper 2020
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Lowe, Ryan J. (author), Buckley, Mark L. (author), Altomare, Corrado (author), Rijnsdorp, Dirk P. (author), Suzuki, T. (author), Bricker, J.D. (author)In this study we assess the capabilities of the mesh-free, Lagrangian particle method (Smooth Particle Hydrodynamics, SPH) method to simulate the detailed hydrodynamic processes generated by both spilling and plunging breaking waves within the surf zone, and present how the approach can be used to predict a broad spectrum of hydrodynamic...conference paper 2019
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Mehta, D. (author), Thota Radhakrishnan, A.K. (author), van Lier, J.B. (author), Clemens, F.H.L.R. (author)The concentration of domestic slurry has two advantages, it promotes resource recovery (nutrients and biomass) and saves water. But the design of a relevant sewerage requires a clear understanding of the frictional losses incurred during the transport of the slurry. This abstracts describes numerical & CFD-based methods to estimate losses...conference paper 2019
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van der Kolk, N.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)A Reynolds-Averaged Navier Stokes computational fluid dynamics (RANS-CFD) package will be one of the primary tools used during the development of a performance prediction program for Wind-Assisted commercial ships. The modelling challenge presented by large separated flow structures in the wake of the sailing ship points to a conscientious...conference paper 2017
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Liu, J. (author), Hekkenberg, R.G. (author)In order to reach the required manoeuvrability, inland vessels often use twin rudders, but the interaction effects are poorly understood. To achieve a proper configuration, this paper applies 2D RANS simulations to analyse the interaction effects on the twin-rudder hydrodynamics. Various twin-rudder configurations with different profiles and...conference paper 2016
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Rotte, G.M. (author), Zverkhovskyi, Oleksandr (author), Kerkvliet, Maarten (author), van Terwisga, T.J.C. (author)Air lubrication techniques are very promising in reducing ship drag. It has been demonstrated that air cavity applications can realise propulsive power reduction percentages of 10-20% due to the reduction of the frictional resistance [1, 2]. However, a complete understanding of the two-phase flow physics involved with air cavity flows is still...conference paper 2016
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Bordogna, G. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author), Fossati, Fabio Vittorio (author), Belloli, Marco (author)In recent years wind-assisted propulsion for commercial ships has gained an increasing interest as valuable alternative to reduce fuel pollutant emissions. However, the development of feasible and commercially viable wind propulsion systems to partially (or fully) propel a ship is nowadays hindered by the difficulties of modelling the...conference paper 2016
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Chang, X. (author), Akkerman, I. (author), Huijsmans, R.H.M. (author), Veldman, A.E.P. (author)The CFD simulation tool ComFLOW is extended to investigate the characteristics of wave motions in the presence of steady uniform currents. Initially, the inflow boundary is the superposition of waves and current. Effect of the latter on the former is resolved by solving Navier-Stokes equations within the domain as a next step. A Generating and...conference paper 2016
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Rotteveel, E. (author), van der Ploeg, A (author), Hekkenberg, R.G. (author)Shallow water effects change the flow around a ship significantly which can affect the optimum design of the hull. This paper describes a study into the optimization of the aft ship region for various water depths. The research focuses on variations of the following parameters of a hull form: The athwart ship’s propeller location, the tunnel top...conference paper 2016
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van den Bos, L.M.M. (author), Koren, B (author), Dwight, R.P. (author)The problem of non-intrusive uncertainty quantification is studied, with a focus on two computational fluid dynamics cases. A collocation method using quadrature or cubature rules is applied, where the simulations are selected deterministically. A one-dimensional quadrature rule is proposed which is nested, symmetric, and has positive weights....conference paper 2016
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Lancelot, P.M.G.J. (author), Sodja, J. (author), Werter, N.P.M. (author), De Breuker, R. (author)This paper summarises the design of a gust generator and the comparison between high fidelity numerical results and experimental results. The gust generator has been designed for a low subsonic wind tunnel in order to perform gust response experiments on wings and assess load alleviation. Special attention has been given to the different design...conference paper 2015
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Rotteveel, E. (author), Hekkenberg, R.G. (author)Effects of a hull form variation and shallow water on a 110-meter inland ship are presented as preliminary results of the Top Ships project, which is initiated in order to improve inland ship design tools and design guidelines.conference paper 2015
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Rombouts, P.M.M. (author), Tralli, A. (author), Langeveld, J.G. (author), Verhaart, F. (author), Clemens, F.H.L.R. (author)Being able to accurately determine weir discharges is of key importance in urban water management. The most common method is performing a level measurement and calculating the discharge using the standard weir equation. Since this equation is only valid in certain conditions, this can lead to large deviations from the actual discharge. In this...conference paper 2014
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Van der Velden, W.C.P. (author), Van Zuijlen, A.H. (author), De Jong, A.T. (author), Bijl, H. (author)A Large Eddy Simulation (LES) with four different closure models are analyzed in OpenFOAM, an open source Computional Fluid Dynamics (CFD) package and validated for the determination of the streamwise and spanwise coherence length of the pressure field below a turbulent boundary layer at low Reynolds numbers. Matching results are found for outer...conference paper 2014
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Fioravanti, A. (author), Avincola, E. (author), Novembri, G. (author)Architecture, nowadays, is an even more demanding activity in which complexity is the keyword: complex forms, complex functions and complex structures require sophisticated facilities and components, for example, The Cloud of D. and M. Fuksas in Rome. These complexities can give rise to numerous risks, among which fire is frequently a central...conference paper 2013