A sharp-interface immersed boundary method for moving objects in compressible viscous flows

TL;DR: In this article, the authors study the large-amplitude flutter of membranes with vortex sheet wakes in two-dimensional inviscid fluid flows and apply small initial deflections and track their exponential decay or growth and subsequent large amplitude dynamics in the space of three dimensional parameters: membrane pretension, mass density and stretching modulus.

TL;DR: In this article , a Mach 1.5 non-reactive flow in a cavity-stabilized combustor of a model scramjet is studied via a direct-numerical simulation approach, and the analysis is focused on the interaction among boundary layer, free shear-layer above the cavity and shock wave.

TL;DR: In this paper, the authors combine the numerical advantages of the high-order Flux Reconstruction (FR) method and the simplicity of the mesh generation (or lack thereof) of the Immersed Boundary Method (IBM) for steady and unsteady problems over moving geometries.

Abstract: Wall-resolved large eddy simulations and wall-modeled large eddy simulations are still separate strategies in the field of wall-turbulence applications, and no significant attempts have been documented to blend them in order to exploit the full potential of the two methods. This work enables a smooth transition between these two techniques, designing a robust algorithm that dynamically adapts the wall treatment. In particular, we propose a unified method that employs augmented turbulent viscosity and diffusivity at the wall location and allows for preservation of both the no-slip and isothermal/adiabatic conditions.

TL;DR: In this article, the authors present references and index Reference Record created on 2004-09-07, modified on 2016-08-08 and a reference record created on 2003-09 -07.

TL;DR: In this article, the generalized Riemann problem is used to solve the Euler Equation problem and the ADER approach is used for non-linear systems with finite forces in multiple dimensions.

TL;DR: The term immersed boundary (IB) method is used to encompass all such methods that simulate viscous flows with immersed (or embedded) boundaries on grids that do not conform to the shape of these boundaries.

TL;DR: In this article, a boundary condition formulation for the Navier-Stokes equations is proposed, which is compatible with non-disjoint algorithms applicable to direct simulations of turbulent flows.