Sökning: "Phase-field method"
Visar resultat 11 - 15 av 23 avhandlingar innehållade orden Phase-field method.
11. Numerical modelling of geomaterials at failure
Sammanfattning : Geotechnical engineering is the science dealing with mechanics of soils and rocks and its engineering applications. Geotechnical engineering projects vary in a wide range, from evaluation of the stability of natural slopes and man-made soil deposits, to the design of earthworks and foundations. LÄS MER
12. Multiphase continuum modeling of wood : A hybrid mixture theory approach
Sammanfattning : Wood has been used as a construction material for a very long time. The development of efficient industrial production processes of wood has expanded the use of the material with the introduction of new products, such as engineered wood products. LÄS MER
13. On Crack Dynamics in Brittle Heterogeneous Materials
Sammanfattning : Natural variation, sub-structural features, heterogeneity and porosity make fracture modelling of wood and many other heterogeneous and cellular materials challenging. In this thesis, fracture in such complicated materials is simulated using phase field methods for fracture. LÄS MER
14. Numerical methods for the Navier–Stokes equations applied to turbulent flow and to multi-phase flow
Sammanfattning : This thesis discusses the numerical approximation of flow problems, in particular the large eddy simulation of turbulent flow and the simulation of laminar immiscible two-phase flow. The computations for both applications are performed with a coupled solution approach of the Navier-Stokes equations discretized with the finite element method. LÄS MER
15. Numerical study of interface dynamics and phase change
Sammanfattning : Multi-phase fluid flows are ubiquitous in natural phenomena and different industrial applications such as in food industry, the medical sector, heat exchangers, power generation systems, to name a few. Understanding the underlining physics of multi-phase flows proved to be a challenging task due to presence of sophisticated dynamics, including the evolution of the interface between any pair of phases, thermodynamics and possibility of phase change, interactions between the fluid phases and a solid phase, etc. LÄS MER