Publications
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Improved Models for Thermal Fluid Topology Optimization KU Leuven
Thermal-fluid cooling systems are commonly used in many industrial applications due to their capability to handle high heat loads. An example is the cooling of electronic devices. For the new generations of processors, the continuously increasing power density is a bottleneck in guaranteeing their functional performance. This poses serious challenges to the cooling system design. To optimize the performance of these liquid-cooled heat sinks ...
Density-based Topology Optimization for District Heating Networks KU Leuven
According to the Intergovernmental Panel on Climate Change, limiting global warming will require significant changes in the energy system over the next 30 years (IPCC report 2022). While the role of efficient and low-carbon heating technologies continues to grow, fossil fuels still meet over 60% of heating energy demand (IEA Heating 2022). This dependence on fossil fuels in the heating sector requires new perspectives in the planning and design ...
Achievements and Challenges in Automated Parameter, Shape and Topology Optimization for Divertor Design KU Leuven
Particle and power exhaust is a key performance issue for next step fusion reactors. Divertors need to be designed to handle power exhaust and to provide sufficient Helium pumping capacity. Plasma edge transport codes such as B2-Eirene [1,2] are indispensable for the design of future divertor concepts, as they allow for the extrapolation of the current understanding of the edge plasma physics to fusion reactor relevant operating regimes. Due to ...
Achievements and Challenges in Automated Parameter, Shape and Topology Optimization for Divertor Design KU Leuven
Particle and power exhaust is a key performance issue for next step fusion reactors. Divertors need to be designed to handle power exhaust and to provide sufficient Helium pumping capacity. Plasma edge transport codes such as B2-Eirene [1,2] are indispensable for the design of future divertor concepts, as they allow for the extrapolation of the current understanding of the edge plasma physics to fusion reactor relevant operating regimes. Due to ...
Sensitivity Analysis of Flexible Multibody Systems. With Applications in Parameter, Topology and Input Optimization KU Leuven
This dissertation focuses on the efficient and accurate generation of sensitivity information for various optimization problems characterized by a large design space in the field of flexible multibody system dynamics. These various optimization problems, such as parameter identification, optimal input and topology optimization, enable the mechatronic industry to reach targets on energy-efficiency, performance, reliability, etc. Accurate ...
Economic topology optimization of District Heating Networks using a pipe penalization approach KU Leuven
In the presented study, a pipe penalization approach for the economic topology optimization of District Heating Networks is proposed, drawing inspiration from density-based topology optimization. For District Heating Networks, the upfront investment is a crucial factor for the rollout of this technology. Today, the pipe routing is usually designed relying on a linearization of the underlying heat transport problem. This study proposes to solve ...
A Topology Optimization Approach to the Support Structure Problem in Additive Manufacturing KU Leuven
Additive manufacturing encompasses all technologies that produce three-dimensional objects, usually by adding one layer of material at the time. Technologies have been developed for a wide range of materials, including metal, thermoplastics, ceramics, composites and glass. While additive manufacturing has the potential to produce very complex geometries, it is still characterized by certain technological constraints. One of these constraints is ...
Filtering in Microchannel Heat Sink Topology Optimization KU Leuven
In recent years, the design of microchannel heat sinks has shifted from an empirical approach to more optimization based mathematical approaches. This tactic of numerically simulating the design problem using topology optimization allows for further improvement of existing designs and development of novel lay-outs with enhanced performance. From a physical point of view, the smaller the channel size in these optimized designs, the larger the ...
A Robust Approach to Topology Optimization Accounting for Geometric Imperfections (Een robuuste aanpak voor topologische optimalisatie rekening houdend met geometrische imperfecties) KU Leuven
Performance and cost efficiency are important demands in the design of civil structures such as bridges and high-rise buildings. This thesis investigates topology optimization as a tool for achieving these goals during the design process. In order to determine the best structural layout, topology optimization seeks the optimal material distribution in a predefined design domain using numerical optimization. Besides the efficiency and performance ...