Sökning: "finite extension"
Visar resultat 21 - 25 av 124 avhandlingar innehållade orden finite extension.
21. An Immersed Finite Element Method and its Application to Multiphase Problems
Sammanfattning : Multiphase flows are frequently encountered in many important physical and industrial applications. These flows are usually characterized by very complicated structure that involves free moving surfaces inside the fluid domain and discontinuous or even singular material properties of the flow. LÄS MER
22. Progressive landslides in long natural slopes : potential extension and configuration of finished slides in strain-softening soils
Sammanfattning : A finite difference method is presented for progressive slides in long natural slopes. The method is based on a strain softening material model. A detailed worked out example is given as well as examples using a spread sheet PC program and a PC program for Windows. LÄS MER
23. Progressive landslides in long natural slopes : Formation, potential extension and configuration of finished slides in strain-softening soils
Sammanfattning : After the large landslide in Tuve (Gothenburg, 1977), the author began developing a finite difference model for slope stability analysis taking the deformation-softening of soft sensitive clays into consideration. In the model, the mean down-slope deformation in each element caused by normal forces is maintained compatible with the deformation generated by shear stresses. LÄS MER
24. Robust intersection of hexahedral meshes and triangle meshes with applications in finite volume methods
Sammanfattning : The topic of this thesis is the intersection of a structured hexahedral grid and one or more triangle meshes. The interest in the problem has arisen in connection with a finite volume method for simulation of conjugated heat transfer. LÄS MER
25. Modified Stencils for Boundaries and Subgrid Scales in the Finite-Difference Time-Domain Method
Sammanfattning : This thesis centers on modified stencils for the Finite-Difference Time-Domain method (FDTD), or Yee scheme, when modelling curved boundaries, obstacles and holes smaller than the discretization length. The goal is to increase the accuracy while keeping the structure of the standard method, enabling improvements to existing implementations with minimal effort. LÄS MER