High-order Discontinuous Galerkin Solutions of Internal Low-mach Number Turbulent Flows
نویسندگان
چکیده
منابع مشابه
A discontinuous Galerkin method for inviscid low Mach number flows
10 In this work we extend the high-order Discontinuous Galerkin (DG) Finite element 11 method to inviscid low Mach number flows. The method here presented is designed 12 to improve the accuracy and efficiency of the solution at low Mach numbers using 13 both explicit and implicit schemes for the temporal discretization of the compress14 ible Euler equations. The algorithm is based on a classica...
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 کاملHigh order conservative finite difference scheme for variable density low Mach number turbulent flows
The high order conservative finite difference scheme of Morinishi et al. [Y. Morinishi, O.V. Vasilyev, T. Ogi, Fully conservative finite difference scheme in cylindrical coordinates for incompressible flow simulations, J. Comput. Phys. 197 (2004) 686] is extended to simulate variable density flows in complex geometries with cylindrical or cartesian non-uniform meshes. The formulation discretely...
متن کاملHigh-order Discontinuous Galerkin Methods: Simulation of Coil Flows
We have developed spectral methods in the discontinous Galerkin framework appropriate for simulations of high-speed flows in complex-geometry domains. In this paper we present details of the stability of the method and demonstrate the importance of over-integration for strongly nonlinear problems. We then present results from the application of the method to stability studies of supersonic and ...
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 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: Energy Procedia
سال: 2014
ISSN: 1876-6102
DOI: 10.1016/j.egypro.2014.01.057