Mimicking of Non-conservative Systems: Demonstration of a generalized method for applying the mimetic spectral element method to non-conservative systems

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...

Energy-Conservative Data-Driven Modelling for the two-scale Navier-Stokes Equations

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...

PROMOTIVATE: Design for social dynamics to promote sustainable behavior in secondary schools

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...

Energy-conserving spectral element schemes based on Lagrangian dynamics: Investigating discrete energy conservation

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...

Plug & Play Facades: Sustainable Facade Refurbishment of Existing Tall Buildings in UAE using Plug & Play approach

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...

Reducing the need for communication in wireless sensor networks using machine learning and planning techniques

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...

A physics-compatible solver for turbidity currents

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...

Conceptualizing and changing energy usage by manifesting traces of use

SCOPE: A disconnection between the production and consumption of energy use makes it difficult for people to engage with the technologies related to energy. This causes that users can only engage with technologies by consuming the functionalities related to them. This is what Borgmann has been defined as the ‘device paradigm’. The goal of this...

Hamiltonian Discontinuous Galerkin Finite Element Method for Internal Gravity Waves: An exactly energy conserving discretization

A DGFEM discretization has been developed for the Hamiltonian dynamics of stratified incompressible linear fluid flow. The developed discretization can handle the numerical challenges posed by wave attractors: the three dimensionality of the domain, the focusing of wave energy and the incompressibility of the flow. The discretization is...

Energy Conservation of Cooperative Communication over Composite Channels

The studies about the effects of multipath fading and shadowing for wireless cooperative networks are insufficient. Almost all real wireless networks can be modeled by changing the parameters of the composite distribution which models both multipath and shadow fading. This composite distribution makes the analytical calculation of bit error rate...

Making the leap from awareness to action: The EnergyMentor

Climate change is already happening and represents one of the greatest environmental, social and economic threats facing the planet. The warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global mean sea level....