Accurate predictions of turbine heat transfer rates are needed to reduce the overall costs and risks of developing an efficient cooling system and to improve predictions of turbine life. 3D Navier Stokes codes are commonly used to predict the aerodynamic flowfield, but their use for heat transfer calculations is not so well established. This paper describes heat transfer predictions for the end...

A modular framework for aerodynamic optimization of complex geometries is developed. By working directly with a parametric CAD system, complex-geometry models are modified and tessellated in an automatic fashion. The use of a component-based Carte-sian method significantly reduces the demands on the CAD system, and also provides for robust and efficient flowfield analysis. The optimization is c...

Abstract The influence of the flight attitude on aerodynamic coefficients and static stability cylindrical bodies in hypersonic flows is interest understanding re/entry space debris, meteoroid fragments, launch-vehicle stages other rotating objects. Experiments were therefore carried out wind tunnel H2K at German Aerospace Center (DLR) Cologne. A free-flight technique was employed H2K, which en...

We present predictions for the statistical error due to finite sampling in the presence of thermal fluctuations in molecular simulation algorithms. Expressions for the fluid velocity, density and temperature are derived using equilibrium statistical mechanics. The results show that the number of samples needed to adequately resolve the flowfield scales as the inverse square of the Mach number. ...

A two-point second-order uniform box-scheme has been developed for numerical analysis of the gas flow in the boundary layer under the conditions of intensive blowing on the body surface. An effective regularization algorithm has been created. The numerical analysis indicates the second order of the uniform convergence of this box-scheme. Flowfield parameters in the boundary layer near the stagn...

In this study, Flowfield Dependent Variation (FDV) method is coupled with Arbitrary Lagrangian-Eulerian (ALE) method in order to solve fluid-structure interaction problems. FDV method is a mixed explicit-implicit numerical scheme where its implicitness is determined by several parameters that are dependent on the physical properties of the local flow. The scheme which is called as ALE-FDV metho...