4D large scale variational data assimilation of a turbulent flow with a dynamics error model

P Chandramouli, E Memin, D Heitz - Journal of Computational Physics, 2020 - Elsevier
We present a variational assimilation technique (4D-Var) to reconstruct time resolved
incompressible turbulent flows from measurements on two orthogonal 2D planes. The …

Interaction of a Mach 2.25 turbulent boundary layer with a fluttering panel using direct numerical simulation

CM Ostoich, DJ Bodony, PH Geubelle - Physics of Fluids, 2013 - pubs.aip.org
The interaction between a thin metallic panel and a Mach 2.25 turbulent boundary layer is
investigated using a direct numerical simulation approach for coupled fluid-structure …

Time-stable overset grid method for hyperbolic problems using summation-by-parts operators

N Sharan, C Pantano, DJ Bodony - Journal of Computational Physics, 2018 - Elsevier
A provably time-stable method for solving hyperbolic partial differential equations arising in
fluid dynamics on overset grids is presented in this paper. The method uses interface …

Fluid-thermal response of spherical dome under a mach 6.59 laminar boundary layer

CM Ostoich, DJ Bodony, PH Geubelle - AIAA journal, 2012 - arc.aiaa.org
FUTURE high-performance United States Air Force (USAF) vehicles are expected to be
lightweight, flexible, and reusable. These vehicles will likely be fitted with powerful …

Time-stable high-order finite difference methods for overset grids

N Sharan - 2016 - ideals.illinois.edu
Overset grids provide an efficient and flexible framework for implementing high-order finite
difference methods to simulate compressible viscous flows over complex geometries …

Energy stable numerical methods for hyperbolic partial differential equations using overlapping domain decomposition

A Reichert, MT Heath, DJ Bodony - Journal of Computational Physics, 2012 - Elsevier
Overlapping domain decomposition methods, otherwise known as overset grid or chimera
methods, are useful for simplifying the discretization of partial differential equations in or …

Investigation of a continuous adjoint-based optimization procedure for aeroacoustic control of plane jets

D Marinc, H Foysi - International journal of heat and fluid flow, 2012 - Elsevier
A control optimization technique using the continuous adjoint of the compressible Navier–
Stokes equations is implemented for aeroacoustic optimization of plane jet flows. The …

Direct numerical simulation of human phonation

S Saurabh - 2017 - ideals.illinois.edu
The generation and propagation of the human voice is studied using direct numerical
simulation. A full body domain is employed for the purpose of directly computing the sound …

[图书][B] Aerothermal and aeroelastic response prediction of aerospace structures in high-speed flows using direct numerical simulation

CM Ostoich - 2013 - search.proquest.com
Future high-speed air vehicles will be lightweight, flexible, and reusable. Ve-hicles fitting this
description are subject to severe thermal and fluid dynamic loading from multiple sources …

Effect of large-eddy simulation fidelity on predicted mechanisms of jet noise reduction

J Kim, DJ Bodony, JB Freund - Journal of Propulsion and Power, 2012 - arc.aiaa.org
JET NOISE is an important factor in aircraft certification worldwide. Early work on jet noise
focused on its parametric dependencies as determined through measurement [1–8] and on …