An unstructured grid method is presented to compute three-dimensional compressible turbulent flows for complex geometries. The Navier-Stokes equations along with the one equation turbulence model of Spalart-Allmaras are solved using a parallel, matrix-free implicit method on unstructured tetrahedral grids. The developed method has been used to predict drags in the transonic regime for both DLRF...

Abstract The ability to accurately model condensing flows is crucial for understanding such in many applications. Condensing of pure steam have been studied extensively the past, and several droplet growth models derived. rationale choice condensation humid air less established. Furthermore, only a few validation cases exist. This paper aims identify existing limitations common laws. Hertz—Knud...

Abstract This paper reports on particle image velocimetry (PIV) measurements in compressible accelerated wake flows generated by two different central injector types, which are mounted a convergent-divergent nozzle. The injectors differ the extent of their trailing edge located either subsonic (injector A) or supersonic flow region B). In addition, undisturbed nozzle without is studied as refer...