Multidisciplinary applications of detached-eddy simulation to separated flows at high reynolds numbers (challenge 92)

Scott A. Morton, Denis Kholodar, Thomas Billingsley, James R. Forsythe, Kenneth E. Wurtzler, Kyle Squires, Russell M. Cummings, Philippe R. Spalart

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


The current effort develops and demonstrates the application of high resolution turbulence modeling to flight mechanics and aeroelasticity of air vehicles at flight conditions where the vehicle is experiencing massively separated flow fields. The effort has both a basic research component to aid in developing the method and an applied component where the method is used to demonstrate an ability to simulate current DoD aircraft issues in flight mechanics and aeroelasticity. The high resolution turbulence method is a hybrid Reynolds Averaged Navier-Stokes (RANS)-Large Eddy-Simulation (LES) method introduced by Spalart et al. in 1997 called Detached-Eddy Simulation (DES) implemented in an unstructured Navier-Stokes solver, Cobalt. In the basic research component, DES has been applied to an Aerospatiale-A airfoil at an angle of attack of 13.3 degrees and a Reynolds number of 2 million. The project is called DESPOIL and simulates laminar-to-turbulent transition, adverse pressure gradients, streamline curvature, and boundary layer separation of a 3-D airfoil strip. This study is in the early stages of developing a baseline for RANS and DES computations. DES has also been applied to flight mechanic and aeroelasticity problems of DoD air vehicles to demonstrate the utility of DES and also discover some of the nonlinear mechanisms causing these flight issues. The applications studied include the F/A-18E forced motion about the roll axis and one degree of freedom simulation of abrupt wing stall (AWS), the F/A-18C at conditions of tail buffet, and the ARGUS missile at conditions where it experiences coning motion.

Original languageEnglish (US)
Title of host publicationProceedings - Users Group Conference, UGC 2004
PublisherIEEE Computer Society
Number of pages9
ISBN (Print)0769522599, 9780769522593
StatePublished - Jan 1 2004
EventDoD HPCMP Users Group Conference, UGC 2004 - Williamsburg, VA, United States
Duration: Jun 7 2004Jul 11 2004

Publication series

NameProceedings - Department of Defense High Performance Computing Modernization Program Users Group Conference, UGC 2004


OtherDoD HPCMP Users Group Conference, UGC 2004
Country/TerritoryUnited States
CityWilliamsburg, VA

ASJC Scopus subject areas

  • General Engineering


Dive into the research topics of 'Multidisciplinary applications of detached-eddy simulation to separated flows at high reynolds numbers (challenge 92)'. Together they form a unique fingerprint.

Cite this