5 papers
Space-time spectral element summation-by-parts method for heterogeneous transient heat conduction arising in topology optimization
Sarah Nataj, Magnus Appel, Joe Alexandersen
We develop a stable space-time spectral element method for transient heat conduction in heterogeneous multi-material domains, motivated by topology optimization. The method treats…
Density-based topology optimization for turbulent fluid flow using the standard k-epsilon RANS model with wall-functions imposed through an implicit wall penalty formulation
Amirhossein Bayat, Hao Li, Joe Alexandersen
Turbulent flows have high requirements for very fine meshes near the boundary to ensure accuracy. In the context of topology optimization (TO), such fine meshes become unrealistic…
Large-Scale Topology Optimisation of Time-dependent Thermal Conduction Using Space-Time Finite Elements and a Parallel Space-Time Multigrid Preconditioner
Joe Alexandersen, Magnus Appel
This paper presents a novel space-time topology optimisation framework for time-dependent thermal conduction problems, aiming to significantly reduce the time-to-solution. By treat…
Space-Time Multigrid Methods Suitable for Topology Optimisation of Transient Heat Conduction
Magnus Appel, Joe Alexandersen
This paper presents Space-Time MultiGrid (STMG) methods which are suitable for performing topology optimisation of transient heat conduction problems. The proposed methods use a po…
One-shot Parareal Approach for Topology Optimisation of Transient Heat Flow
Magnus Appel, Joe Alexandersen
This paper presents a method of performing topology optimisation of transient heat conduction problems using the parallel-in-time method Parareal. To accommodate the adjoint analys…