A Parallel Unstructured Implicit Solver for Hypersonic Reacting Flow Simulation

Energy conversion in high enthalpy flows and non-equilibrium plasmas

“…These results are consistent with the predictions of CFD calculations using a hybrid, implicit unstructured fully coupled finite volume solver (US3D) [9,10] that solves the compressible, three-dimensional Navier-Stokes equations to compute the flow field. The code was developed and used to model the cold flow (with electric discharges off) in the tunnel [1,9,10].…”

“…The code was developed and used to model the cold flow (with electric discharges off) in the tunnel [1,9,10]. A subsonic inflow boundary condition is used for the nozzle [11].…”

An adaptive implicit–explicit scheme for the DNS and LES of compressible flows on unstructured grids

“…However, for the unstructured grids it is difficult to identify a stiff direction. For specially designed unstructured grids, Nompelis et al [13] proposed a method with an implicit treatment of the wall-normal direction. Nevertheless, in many cases, the stiffness is confined to certain regions in the computational domain.…”

Hypersonics into the 21st century: A perspective on AFOSR-sponsored research in aerothermodynamics

“…The new unstructured code, called US3D [30], incorporated kinetic energy preserving flux reconstructions [29] to facilitate improved resolution of smallamplitude fluctuations while retaining the computational efficiency of lower-order algorithms. US3D was designed to be easily coupled with STABL and other specialized companion solvers that address multiphysical phenomena such as gas-surface interactions and ablation.…”