Searched for: subject%3A%22energy%255C+conserving%22
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Buist, J.F.H. (author), Sanderse, B. (author), Dubinkina, S. (author), Oosterlee, C. W. (author), Henkes, R.A.W.M. (author)
In this paper we present a complete framework for the energy-stable simulation of stratified incompressible flow in channels, using the one-dimensional two-fluid model. Building on earlier energy-conserving work on the basic two-fluid model, our new framework includes diffusion, friction, and surface tension. We show that surface tension can...
journal article 2024
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Klein, R.B. (author), Sanderse, B. (author)
A novel hyper-reduction method is proposed that conserves kinetic energy and momentum for reduced order models of the incompressible Navier-Stokes equations. The main advantage of conservation of kinetic energy is that it endows the hyper-reduced order model (hROM) with a nonlinear stability property. The new method poses the discrete...
journal article 2024
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Ouerghi, Ibrahim (author)
The mimetic spectral element method is a relatively young method in numerical solutions of partial differential equations and actions that describe physical systems. Its advantage is that it takes the geometrical structure of the problem into account which guarantees consistency of the numerical scheme and the conservation of relevant quantities...
master thesis 2023
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Bettini, Andrea (author)
This thesis presents an energy-conservative data-driven approach in modelling the closure terms of the Navier-Stokes equations casted through the Variational Multiscale (VMS) framework. For context, the VMS framework is applied in designing stabilised finite element methods for multiscale phenomena in which stability is not guaranteed. Under...
master thesis 2023
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Kaaks, B.J. (author), Rohde, M. (author), Kloosterman, J.L. (author), Lathouwers, D. (author)
We present a discontinuous Galerkin method for melting/solidification problems based on the “linearized enthalpy approach,” which is derived from the conservative form of the energy transport equation and does not depend on the use of a so-called mushy zone. We use the symmetric interior penalty method and the Lax–Friedrichs flux to...
journal article 2023
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Zwarts, S. (author), Lesueur, M. (author)
The foundation of homogenisation methods rests on the postulate of Hill–Mandel, describing energy consistency throughout the transition of scales. The consideration of this principle is therefore crucial in the discipline of Digital Rock Physics which focuses on the upscaling of rock properties. For this reason, numerous studies have...
journal article 2023
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Buist, J.F.H. (author), Sanderse, Benjamin (author), Dubinkina, Svetlana (author), Oosterlee, C.W. (author), Henkes, R.A.W.M. (author)
The pressure-free two-fluid model (PFTFM) is a recent reformulation of the one-dimensional two-fluid model (TFM) for stratified incompressible flow in ducts (including pipes and channels), in which the pressure is eliminated through intricate use of the volume constraint. The disadvantage of the PFTFM was that the volumetric flow rate had to...
journal article 2023
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Chen, Tao (author)
ENERGE is a research project working on managing energy consumption at the school level for sustainability. It is looking for solutions that extend data interactions to the field of behavioral change while taking both energy use and people’s comfort into account. <br/>This graduation project explores how to communicate information related to...
master thesis 2022
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Coenen, Frans (author), Hoppe, T. (author)
Renewable energy communities (RECs) might be an interesting new stakeholder in stimulating home energy‐saving efforts by tenants and homeowners due to their potential of raising awareness locally and gaining public support for low‐carbon energy and energy‐savings projects, because RECs are often locally sited, in close social proximity of...
journal article 2022
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Zhang, Y. (author), Palha, A. (author), Gerritsma, M.I. (author), Rebholz, Leo G. (author)
We introduce a mimetic dual-field discretization which conserves mass, kinetic energy and helicity for three-dimensional incompressible Navier-Stokes equations. The discretization makes use of a conservative dual-field mixed weak formulation where two evolution equations of velocity are employed and dual representations of the solution are...
journal article 2022
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Hamida, M.B. (author), Ahmed, Wahhaj (author), Asif, Muhammad (author), Almaziad, Faris Abdullah (author)
The buildings and construction sector accounts for the majority of the energy consumption in the Kingdom of Saudi Arabia (KSA). For a sustainable future, energy consumption in the sector should be reduced and existing buildings need to be energy retrofitted. A number of studies present energy retrofitting of residential buildings in KSA;...
journal article 2021
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Weijers, Wessel Niek (author)
Physical systems in the continuous domain are often solved using computer-aided software because of their complexity. Preserving the physical quantities from the continuous domain in the discrete domain is therefore of utmost importance. There is however a broad range of techniques that can accomplish the translation between the continuous and...
master thesis 2020
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Premith Satish, Premith (author)
The thesis aims to offer a review of a modern conceptual facade focusing on one more possible solution to sustainable facade refurbishment for existing tall buildings. There are thousands of highrise buildings in the world and almost all of them over time will require some degree of refurbishment. The premise of this thesis is based on the...
master thesis 2019
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Hoppe, T. (author), Coenen, Frans (author), Bekendam, Maria T. (author)
Little is known about how renewable energy cooperatives (REScoops) try to influence energy conservation among households and the resulting impact. In this article the main research question is: What is the predictive value of renewable energy cooperatives on intention to save energy, engagement in energy-saving actions, and self-reported energy...
journal article 2019
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Mehta, D. (author), Zhang, Y. (author), van Zuijlen, A.H. (author), Bijl, H. (author)
Despite advances in turbulence modelling, the Smagorinsky model remains a popular choice for large eddy simulation (LES) due to its simplicity and ease of use. The dissipation in turbulence energy that the model introduces, is proportional to the Smagorinsky constant, of which many different values have been proposed. These values have been...
journal article 2019
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Coenen, Frans (author), Hoppe, T. (author)
In recent years cooperatives for renewable energy supply (REScoops) have emerged as important new actors in energy markets. They provide their members (i.e., households) with renewably generated energy within a cooperative model that enables members to co-decide on its strategic and tactical goals, plans and business model. REScoops do not only...
abstract 2018
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Wang, K. (author), Yan, Xinping (author), Yuan, Yupeng (author), Jiang, X. (author), Lin, X. (author), Negenborn, R.R. (author)
Nowadays, optimization of ship energy efficiency attracts increasing attention in order to meet the requirement for energy conservation and emission reduction. Ship operation energy efficiency is significantly influenced by environmental factors such as wind speed and direction, water speed and depth. Owing to inherent time-variety and...
journal article 2018
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Marques, W.L. (author), Mans, R. (author), Henderson, Ryan K. (author), Marella, Eko Roy (author), ter Horst, J. (author), de Hulster, A.F. (author), Poolman, Bert (author), Daran, J.G. (author), Pronk, J.T. (author), Gombert, Andreas K. (author), van Maris, A.J.A. (author)
Anaerobic industrial fermentation processes do not require aeration and intensive mixing and the accompanying cost savings are beneficial for production of chemicals and fuels. However, the free-energy conservation of fermentative pathways is often insufficient for the production and export of the desired compounds and/or for cellular growth...
journal article 2018
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Hugtenburg, Stefan (author)
Wireless sensor networks are commonly used to remotely and automatically monitor environments.<br/>One of the main challenges in wireless sensor networks is to use the limited available energy as efficiently as possible, to ensure longevity of the network. For such networks to survive their intended deployment period no energy may be wasted on...
master thesis 2017
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Gonzalez de Diego, G. (author)
Turbidity currents are an essential agent of sediment transport from shallow to deeper waters. Detailed measurements of the velocity field or particle concentration are only available by means of accurate numerical simulations. In this thesis, a DNS solver for turbidity currents is presented based on the MEEVC scheme, a mass, energy, enstrophy...
master thesis 2017
Searched for: subject%3A%22energy%255C+conserving%22
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