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Schot, J.J.A. (author), Pennings, P.C. (author), Pourquie, M.J.B.M. (author), Van Terwisga, T.J.C. (author)
In this paper modelling assumptions for the prediction of tip vortex flow and vortex cavitation with the RANS equations and homogeneous fluid approach in Open-FOAM are presented. The effects of the changes in the turbulence model are investigated and the results are compared with PIV measurements.
conference paper 2014
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Rose, A.C. (author)
This report presents a first look study at the field of System Dynamics. The objective of the study is to perform a model-based policy analysis in order to investigate the future advancement of the System Dynamics field. The aim of this investigation is to determine what this advancement should look like and how that can be accomplished. Several...
conference paper 2014
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Van Daalen, C. (author), Schaffernicht, M. (author), Mayer, I. (author)
This paper deals with the relationship between serious games and system dynamics. Games have been used in SD since the beginning. However, the field of serious gaming also has its own development. The purpose of this contribution is to provide a broad overview of the combination of serious gaming and SD and discuss the state of the art and...
conference paper 2014
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Musivand Arzanfudi, M. (author), Al-Khoury, R.I.N. (author), Sluys, L.J. (author)
conference paper 2014
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Wu, L. (author), Tiso, P. (author)
Model order reduction techniques are widely applied in the floating frame of reference. The use of linear vibration modes, however, is not applicable when the elastic deformations become finite. In this paper, the non-linear elastic formulation, where the higher-order terms will be included in the strain energy expression to consider the bending...
conference paper 2014
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Eker, S. (author), Van Daalen, C. (author)
Bio-methane is a renewable gas option that can be injected to the natural gas grids to increase the sustainability of the energy system and to deal with natural gas supply problems. However, being based on several factors such as resource availability, competition between bio-methane and electricity sectors for biogas and biomass supply, demand,...
conference paper 2014
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Hesan, R. (author), Ghorbani, A. (author), Dignum, M.V. (author)
In system dynamics modeling, differential equations have been used as the basic mathematical operator. Using difference equation to build system dynamics models instead of differential equation, can be insightful for studying small organizations or systems with micro behavior. In this paper we explain how we can use difference equations to build...
conference paper 2014
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Blom, D.S. (author), Van Zuylen, A.H. (author), Bijl, H. (author)
Strongly coupled partitioned fluid-structure interaction problems require multiple coupling iterations per time step. The fluid domain and the structure domain are solved multiple times in each time step such that the kinematic and dynamic interface conditions on the fluid-structure interface are satisfied. Quasi-Newton methods have been...
conference paper 2014
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Van Staveren, R. (author), Jaxa-Rozen, M. (author)
Mizoram, a state in the Northeast of India, is affected every half-century by cycles of crop damages and famines. These events - locally known as Mautam - have been hypothesized to follow the periodic flowering of bamboo forests and subsequent rodent outbreaks. As such, the 1958-1960 Mautam resulted in a significant loss of lives; more recently,...
conference paper 2014
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Van Doorn, F.A.P. (author), Gielen, M.A. (author), Stappers, P.J. (author)
Co-research is a method that engages participants in contextual user research by giving them the role of researcher. This method aids to capture their input in the fuzzy front end of the design process. A previous study [5] showed that children can act as co- researchers to gather contextual knowledge. In that study 20 children aged 9-12...
conference paper 2014
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Florentie, L. (author), Van Zuijlen, A.H. (author), Bijl, H. (author)
This paper is the starting point for the development of a multi-fidelity modeling approach for vortex generators (VG) arrays, where a fully resolved VG model will be coupled with an approximate model in order to improve both accuracy and flexibility without increasing the required computational cost. As a first step thereto, an analysis of the...
conference paper 2014
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Pruyt, E. (author), Cunningham, S. (author), Kwakkel, J.H. (author), De Bruijn, J.A. (author)
Human-computer and human-system interaction has already received extensive attention from HCI research communities, yet there are a number of issues that has not been addressed so far. In this paper we propose a novel vision on future human-system interaction that is governed by the principle of affordances and facilitated by cyber physical...
conference paper 2014
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Wang, D. (author), Abdalla, M.M. (author)
There is a renewed interest in grid-stiffened composite structures; they are not only competitive with conventional stiffened constructions and sandwich shells in terms of weight but also enjoy superior damage tolerance properties. In this paper, both global and local structural instabilities are investigated for grid-stiffened composite panels...
conference paper 2014
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Picelli, R. (author), Van Dijk, R. (author), Vicente, W.M. (author), Pavanello, R. (author), Langelaar, M. (author), Van Keuen, A. (author)
This paper presents an evolutionary topology optimization method for applications in design of completely submerged buoyant devices with design-dependent fluid pressure loading. This type of structures aid rig installations and pipeline transportation in all water depths in offshore structural engineering. The proposed optimization method seeks...
conference paper 2014
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Srivatsav, N. (author), Jaxa-Rozen, M. (author), Van Staveren, R. (author)
This draft paper describes the preliminary outcomes of a model-based investigation of longterm strategies to reduce the impacts of coastal flooding in Bangladesh. Specifically, a system dynamics model was constructed to simulate the effect of flood mitigation methods on the population, rural economy, housing and welfare of Bangladeshis in the...
conference paper 2014
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Pruyt, E. (author)
Although SD modeling is sometimes called theory-rich data-poor modeling, it does not mean SD modeling should per definition be data-poor. SD software packages allow one to get data from, and write simulation runs to, databases. Moreover, data is also sometimes used in SD to calibrate parameters or bootstrap parameter ranges. But more could and...
conference paper 2014
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Auping, W.L. (author), De Jong, S. (author), Pruyt, E. (author), Kwakkel, J.H. (author)
The US’ shale gas revolution, a spectacular increase in natural gas extraction from previously unconventional sources, has led to considerable lower gas prices in North America. This study focusses on consequences of the shale gas revolution on state stability of traditional oil and gas exporting countries in the vicinity of the EU. For this...
conference paper 2014
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Papachristos, G. (author), Van de Kaa, G. (author)
There is considerable literature on format competition with several review articles establishing lists of factors that are thought to apply broadly in such contexts. However, the literature is not unequivocal regarding some factors that apparently can have a reinforcing or balancing effect on format adoption and dominance. This paper attempts to...
conference paper 2014
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Clifford Holmes, J.K. (author), Slinger, J.H. (author), Musango, J.K. (author), Brent, A.C. (author), Palmer, C.G. (author)
This paper explores the challenges faced by small municipalities in providing water services in a developing-world context of increasing urban demand. The paper uses a case study of the Sundays River Valley Municipality (SRVM) in South Africa. The municipality faces multiple dilemmas in reconciling its available water supply with growing demand...
conference paper 2014
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D'Hont, F. (author), Slinger, J.H. (author), Goessen, P. (author)
As quantitative modelling can be used to build stakeholder understanding for management decisions, and can help build consensus (Stave, 2003), a system dynamics modelling study of the abiotic dynamics of an archetypical small estuary, the Slufter in the Netherlands is formulated. The model is used in combination with an analysis of stakeholders’...
conference paper 2014
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