Sökning: "Implicit Schemes"
Visar resultat 1 - 5 av 29 avhandlingar innehållade orden Implicit Schemes.
1. Acceleration of Compressible Flow Simulations with Edge using Implicit Time Stepping
Sammanfattning : Computational fluid dynamics (CFD) has become a significant tool routinely used in design and optimization in aerospace industry. Typical flows may be characterized by high-speed and compressible flow features and, in many cases, by massive flow separation and unsteadiness. LÄS MER
2. Acceleration of Compressible Flow Simulations with Edge Using Implicit Time Stepping
Sammanfattning : Computational fluid dynamics (CFD) is a significant tool routinely used indesign and optimization in aerospace industry. Often cases with unsteadyflows must be computed, and the long compute times of standard methods hasmotivated the present work on new implicit methods to replace the standardexplicit schemes. LÄS MER
3. Semi-implicit Runge–Kutta schemes for the Navier–Stokes equations
Sammanfattning : .... LÄS MER
4. Efficient Solvers for Space-Time Discontinuous Galerkin Spectral Element Methods
Sammanfattning : In this thesis we study efficient solvers for space-time discontinuous Galerkin spectral element methods (DG-SEM). These discretizations result in fully implicit schemes of variable order in both spatial and temporal directions. LÄS MER
5. Multigrid Preconditioners for the Discontinuous Galerkin Spectral Element Method : Construction and Analysis
Sammanfattning : Discontinuous Galerkin (DG) methods offer a great potential for simulations of turbulent and wall bounded flows with complex geometries since these high-order schemes offer a great potential in handling eddies. Recently, space-time DG methods have become more popular. LÄS MER