Implicit fully mesh-less method for compressible viscous flow calculations

An embedded boundary method for viscous, conducting compressible flow

The evolution of an inertial fusion energy (IFE) chamber involves a repetition of short, intense depositions of energy (from target ignition) into a reaction chamber, followed by the turbulent relaxation of that energy through shock waves and thermal conduction to the vessel walls. We present an algorithm for 2D simulations of the fluid inside an IFE chamber between fueling repetitions. Our fin...

Discontinuous Galerkin Method for Compressible Viscous Reacting Flow

In the present study, a discontinuous Galerkin (DG) framework is developed to simulate chemically reacting flows. The algorithm combines a double-flux method to account for variable thermodynamic properties, a Strang-splitting scheme for the stiff reaction chemistry, a robust WENO-based shock limiter, and the non-linear viscous-diffusive transport is discretized using the BR2 method. The algori...

An Adaptive Mesh Projection Method for Viscous Incompressible Flow

Many uid ow problems of practical interest|particularly at high Reynolds num-ber|are characterized by small regions of complex and rapidly-varying uid motion surrounded by larger regions of relatively smooth ow. EEcient solution of such problems requires an adaptive mesh reenement capability to concentrate computational eeort where it is most needed. We present in this paper a fractional-step v...

Multigrid Algorithms for Compressible Flow Calculations

Unstructured Mesh Generation For Viscous Flow Computations

This paper presents a robust and automated approach to generate unstructured hybrid grids comprised of tetrahedra, prisms, and pyramids for high Reynolds number flow computations. The hybrid mesh generation starts with isotropic tetrahedral grids to enhance the robustness. The tetrahedra near no-slip walls are shifted inward and the resulting gap between the tetrahedra and the walls is filled u...