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Boersma, A.M. (author), van Oort, N. (author), Scheltes, Arthur (author)This paper gives an overview of the projects and pilots with automated vehicles as public transport in the Netherlands as well as the remaining research questions and preliminary results of passenger related studies regarding expected ridership.abstract 2019
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Boersma, A. (author)In dit rapport wordt verslag gedaan van een onderzoek naar de marktpositie van de naoorlogse etagebouw in de non-profit huursector in Rotterdam. Een belangrijk bestanddeel van het onderzoek was een woonbeelden-enquête onder bewoners van zes geselecteerde complexen. Aan hen is gevraagd om hun eigen woonsituatie qua woning en woongebied te...book 1990
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- Pieters, W. (author), Popkema, M. (author), Broekhans, B. (author), Dijkstra, A. (author), Boersma, K. (author), Alberts, G. (author) book chapter 2009
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Patel, A. (author), Pecnik, Rene (author), Peeters, J.W.R. (author), Boersma, B.J. (author), Hickel, S. (author), Moghadam, M.E. (author)We investigate the effectiveness of the semi-local Reynolds number Re τ to parametrize wall-bounded flows with strong density, ρ, and viscosity, µ, gradients. Several cases are considered, namely, volumetrically heated low-Mach-number turbulent channel flows, a simultaneously heated and cooled flow with CO2 at supercritical pressure, and heated and...book chapter 2017
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Heikoop, D.D. (author), Nuñez Velasco, J.P. (author), Boersma, A.M. (author), Bjørnskau, Torkel (author), Hagenzieker, Marjan (author)Automated driving systems promise a tremendous amount of benefits. Especially when applied in the domain of public transport, economic and passenger advantages are thought to be manifold. As technology rapidly advances, and projects involving automated buses appear throughout the world, investigating how its users and surrounding road traffic...book chapter 2020
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We investigate the effect of temperature dependent thermal conductivity λ and isobaric specific heat c_P on the transient amplification of perturbations in a thermally stratified laminar plane Poiseuille flow. It is shown that for decreasing thermal conductivity the maximum transient energy growth is amplified with respect to the λ=1 case, while...conference paper 2015
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Boersma, B.J. (author), Van der Hoeven, S. (author)Modeling of scalar transport is an essential point in the simulation of non-premixed turbulent combustion. The fuel and oxidizer streams are, in general, modeled with an equation for the mixture fraction Z. This mixture fraction is a bounded function, i.e. it can never become large than one or smaller than zero. Symmetric central differencing...conference paper 2006
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Koschatzky, V. (author), Westerweel, J. (author), Boersma, B.J. (author)The aim of the present study is to compare two different acoustic analogies applied to time-resolved particle image velocimetry (PIV) data for the prediction of the acoustic far-field generated by the flow over a rectangular cavity. Recent developments in laser and camera technology allow the possibility to extend PIV to the study of...conference paper 2010
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Zlatanova, S. (author), Beetz, J. (author), Boersma, A.J. (author), Mulder, A. (author), Goos, J. (author)The maintenance of the complex infrastructure and facilities of Port of Rotterdam is based on large amounts of heterogeneous information. Almost all activities of the Port require spatial information about features above- and under- ground. Current information systems are department and data oriented and cannot reflect the new process- & project...conference paper 2013
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Pourquie, M.J. (author), Boersma, B.J. (author)This article discusses the use of immersed boundary methods for the flow around objects. Treated are the reasons for their use, their benefits compared to other methods, their importance, and possible further developments.conference paper 2006
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Boersma, B.J. (author), Van der Hoeven, S. (author)Modeling of scalar transport is an essential point in the simulation of non-premixed turbulent combustion. The fuel and oxidizer streams are, in general, modeled with an equation for the mixture fraction $Z$. This mixture fraction is a bounded function, i.e. it can never become large than one or smaller than zero. Symmetric central differencing...conference paper 2006
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Rinaldi, E. (author), Boersma, B.J. (author), Pecnik, R. (author)We investigate the effect of temperature dependent thermal conductivity ? and isobaric specific heat c_P on the transient amplification of perturbations in a thermally stratified laminar plane Poiseuille flow. It is shown that for decreasing thermal conductivity the maximum transient energy growth is amplified with respect to the ?=1 case, while...conference paper 2015
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- Goos, J. (author), Boersma, A.J. (author), Mulder, A. (author), Zlatanova, S. (author) conference paper 2012
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Breugem, W.P. (author), Pourquie, M. (author), Boersma, B.J. (author)The Immersed Boundary Method (IBM) is a powerful method for simulating flows in complex geometries [1,2]. In this method complex geometries are embedded on a computational grid, which usually does not conform to the shape of the geometries. No boundary conditions are specified, but instead in the vicinity of solid boundaries forces are imposed...conference paper
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Patel, A. (author), Peeters, J. (author), Boersma, B.J. (author), Pecnik, R. (author)We perform Direct Numerical Simulations (DNS) of a turbulent channel flow with temperature dependent density and viscosity. The Navier-Stokes equations are solved using their low Mach number formulation. In the simulations performed, the fluid is internally heated and the temperature at the walls is fixed. The friction Reynolds number based on...conference paper 2015
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We perform Direct Numerical Simulations (DNS) of a turbulent channel flow with temperature dependent density and viscosity. The Navier-Stokes equations are solved using their low Mach number formulation. In the simulations performed, the fluid is internally heated and the temperature at the walls is fixed. The friction Reynolds number based on...conference paper 2015
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Nemati, H. (author), Patel, A. (author), Boersma, B.J. (author), Pecnik, R. (author)This work investigates turbulent heat transfer to a pipe flow with a fluid close to its vapour-liquid critical point. The flow is simulated using Direct Numerical Simulations (DNS) of the anelastic Navier-Stokes equations at a Reynolds number of Ret = 360, based on the friction velocity ut at the inlet and the diameter of the pipe. Turbulent...conference paper 2013
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Boersma, B.J. (author)In this paper we will present results of several direct numerical simulations of turbulent pipe flow. The highest Reynolds number simulated in this study was 61, 000. Our numerical model uses Fourier expansions in axial and circumferential directions and 6th order staggered compact finite difference in the wall normal direction. Apart form...conference paper 2011
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Pourquie, M.J. (author), Boersma, B.J. (author)This article discusses the use of immersed boundary methods for the flow around objects. Treated are the reasons for their use, their benefits compared to other methods, their importance, and possible further developments.conference paper 2006
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Büscher, Monika (author), Easton, Catherine (author), Kerasidou, Charalampia (author), Escalante, Maria Aléjandra Lujan (author), Alter, Hayley (author), Petersen, Katrina (author), Bonnamour, Marie Christine (author), Lund, David (author), Baur, Andreas (author), Quinn, Regina Ammicht (author), Heesen, Jessica (author), Jasmontaite, Lina (author), Fuster, Gloria González (author), Boden, Alexander (author), Hofmann, Britta (author), Stachowicz, Anna (author), Choraś, Michał (author), Kozik, Rafal (author), Boersma, Kees (author), Comes, M. (author), Clavell, Gemma Galdon (author), Föger, Nicole (author)This paper describes the IsITethical? Exchange, a European knowledge and service hub we are developing with and for diverse parties involved in crisis and disaster risk management. Their commitment to European values and fundamental rights underpins the rationale of the initiative, which is to support European societies' need for high quality...conference paper 2018