High-order h-adaptive discontinuous Galerkin methods for ocean modelling
نویسندگان
چکیده
منابع مشابه
High-Order Discontinuous Galerkin Methods for CFD
In recent years it has become clear that the current computational methods for scientific and engineering phenomena are inadequate for many challenging problems. Examples of these problems are wave propagation, turbulent fluid flow, as well as problems involving nonlinear interactions and multiple scales. This has resulted in a significant interest in so-called high-order accurate methods, whic...
متن کاملHigh-Order Discontinuous Galerkin Methods for Turbulent High-lift Flows
In this work a robust discontinuous Galerkin (DG) solver for turbulent high-lift aerodynamic flows using the turbulence model of Spalart and Allmaras (SA) is developed. The application of DG discretizations to turbulent RANS flows is one of the most pressing issues facing high-order methods on unstructured grids. The issue is the result of non-smooth behavior of the turbulence model equation, w...
متن کاملAdaptive Discontinuous Galerkin Methods for Fourth Order Problems
This work is concerned with the derivation of adaptive methods for discontinuous Galerkin approximations of linear fourth order elliptic and parabolic partial differential equations. Adaptive methods are usually based on a posteriori error estimates. To this end, a new residual-based a posteriori error estimator for discontinuous Galerkin approximations to the biharmonic equation with essential...
متن کاملHigh-order Discontinuous Galerkin Methods for Incompressible Flows
Abstract. The spatial discretization of the unsteady incompressible Navier-Stokes equations is stated as a system of Differential Algebraic Equations (DAEs), corresponding to the conservation of momentum equation plus the constraint due to the incompressibility condition. Runge-Kutta methods applied to the solution of the resulting index-2 DAE system are analyzed, allowing a critical comparison...
متن کاملMultigrid algorithms for high order discontinuous Galerkin methods
I n this paper we study the performance of hand p-multigrid algorithms for high order Discontinuous Galerkin discretizations of elliptic problems. We test the performance of the multigrid schemes employing a wide class of smoothers and considering both twoand three-dimensional test cases.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ocean Dynamics
سال: 2007
ISSN: 1616-7341,1616-7228
DOI: 10.1007/s10236-006-0093-y