-Hh1s paper reports recent progress 1n vortex-control applications for alleviating the adverse consequences of three-dimensional separation and vortical Interactions on slender body/swept wing configurations. Examples Include: helical separation trip to alleviate the side force due to forebody vortex asymmetry; hinged strakes to avoid vortex breakdown effects; compartmentatlon ... swept leading...

A graphical framework is used for statistical analysis of the results from an extensive Nversion test of a collection of Reynolds-averaged Navier-Stokes computational fluid dynamics codes. The solutions were obtained by code developers and users from North America, Europe, Asia, and South America using both common and custom grid sequencees as well as multiple turbulence models for the June 201...

This article deals with the numerical solution of compressible turbulent flows in aerodynamics. Compressible turbulent flow is described by the system of Favre averaged Navier-Stokes equations, which are closed by the explicit algebraic Reynolds stress model (EARSM) of Wallin and Johansson. The averaged Navier-Stokes equations together with EARSM model of turbulence are discretized by the finit...

In the German Aerospace Center, DLR, an internal project has been launched to investigate different UCAV configurations. One aspect, covered by the Institute of Aeroelasticity and the Institute of Aerodynamics and Flow Technology, is the wind tunnel test of a UCAV wing in subsonic and transonic flow. The model shall show measurable static aeroelastic deformations. Main goals of the tests will b...

Continued studies have been undertaken to investigate and develop aerodynamic models that predict aircraft response in nonlinear unsteady flight regimes for transport configurations. The models retain conventional static and dynamic terms but replace conventional acceleration terms with indicial functions. In the Subsonic Fixed Wing Project of the NASA Fundamental Aeronautics Program and the In...

We present a high-order consistent compressible flow solver, based on hybridized discontinuous Galerkin (HDG) discretization, for applications covering subsonic to hypersonic flow. In the context of this broad range presents unique difficulty, especially at high-Mach number end. For instance, if discretization is efficiently resolve shock and shear layers, it imperative use adaptive methods. Fu...

The problems of creating a propulsion system for new generation supersonic passenger aircraft are considered on the basis review work transport being carried out in world. It is shown that desire to achieve high flight performance and commercial effectiveness while meeting up-to-date environmental requirements leads contradictory technical solutions regarding system: location number engines, sc...

Recent developments in numerical simulations the aerodynamics field are focused on reducing computational cost of solvers, targeting their use at initial design steps. Under right assumptions, potential solvers can be exploited to accomplish a valid solution flow for streamlined bodies subsonic and close transonic flows. A fully embedded approach solve full-potential equation is presented, wher...

The aerodynamics of an aerofoil with surface heating was numerically studied the objective to build effective anti-icing strategy and balance performance energy consumption. NACA0012, RAE2822 ONERA M6 aerofoils were adopted as test cases simulations performed in subsonic flight condition commercial passenger aircraft. In first session, numerical scheme firstly validated experimental data. A par...