Searched for: subject%3A%22Local%255C+Adaptation%22
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van den Broek, Erik (author)
High-fidelity models are computationally intensive to work with in many-query applications, such as the design process of small modular reactors. A reduced order model of the high-fidelity model can still accurately determine the quantities of interest with only a fraction of the computational cost, and thus can potentially solve the...
master thesis 2022
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Bougrimov, Denis (author)
Sensitivity analysis and uncertainty quantification of nuclear reactors requires many expensive high-fidelity simulations. To approximate the dynamics of such a time and parameter dependent system efficiently and effectively, reduced order modelling (ROM) is used. In previous research, a ROM was constructed which used a combination of proper...
master thesis 2022
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Alsayyari, F.S. (author), Perko, Z. (author), Tiberga, M. (author), Kloosterman, J.L. (author), Lathouwers, D. (author)
We present an approach to build a reduced-order model for nonlinear, time-dependent, parametrized partial differential equations in a nonintrusive manner. The approach is based on combining proper orthogonal decomposition (POD) with a Smolyak hierarchical interpolation model for the POD coefficients. The sampling of the high-fidelity model to...
journal article 2021
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Alsayyari, F.S. (author)
Large-scale complex systems require high-fidelity models to capture the dynamics of the system accurately. For example, models of nuclear reactors capture multiphysics interactions (e.g., radiation transport, thermodynamics, heat transfer, and fluid mechanics) occurring at various scales of time (prompt neutrons to burn-up calculations) and...
doctoral thesis 2020
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Putri, Widasari Yunida (author)
Semarang City is located in the northern part of Java Island, Indonesia. As an important port city, Semarang’s urban fabric is closely related to its infrastructure: water and traffic networks. However, since the 1980s, the acceleration of Semarang urban growth has not been supported by proper...
master thesis 2020
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Kalyan, Kavya (author)
Chennai, one of the largest metropolitan cities on the Eastern coast of South India, has seen massive growth over the last few decades, accompanied by a majorly infrastructure-led development that has put economic prosperity over environmental value and social inclusion. The effects of this process have been witnessed during the intense climatic...
master thesis 2020
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Bhatt, Jahnavi (author)
The capitalistic and economy driven approach towards urbanization in India has led to a great disparity between different socio-cultural groups as well as a huge pressure on the ecological systems. Further, with the changing climate these groups are increasingly vulnerable to hazards. This can be observed even in the Ganges River Basin where...
master thesis 2020
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Alsayyari, F.S. (author), Tiberga, M. (author), Perko, Z. (author), Lathouwers, D. (author), Kloosterman, J.L. (author)
We use a novel nonintrusive adaptive Reduced Order Modeling method to build a reduced model for a molten salt reactor system. Our approach is based on Proper Orthogonal Decomposition combined with locally adaptive sparse grids. Our reduced model captures the effect of 27 model parameters on k<sub>eff</sub> of the system and the spatial...
journal article 2020
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Alsayyari, F.S. (author), Perko, Z. (author), Lathouwers, D. (author), Kloosterman, J.L. (author)
Large-scale complex systems require high fidelity models to capture the dynamics of the system accurately. The complexity of these models, however, renders their use to be expensive for applications relying on repeated evaluations, such as control, optimization, and uncertainty quantification. Proper Orthogonal Decomposition (POD) is a...
journal article 2019
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Dewan, Rahul (author)
Rapid urbanization triggers in short term or long term highly advanced economy but at the same time create sectors of poor/neglected neighborhoods or communities in our urban environment that faces the hardest challenge to response and recover in the face of climate change variables. The administrative responses to a climate disaster are...
master thesis 2017
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