Abstract: This experimental study examines the mechanisms causing cavitation breakdown in an axial waterjet pump. The database includes performance curves, images of cavitation, measured changes to endwall pressure as the blade ...

Abstract: The maximum supersaturation in a diffusion cloud chamber as a function of the temperature difference between the two plates has been calculated under various conditions. It is shown that the assumption of linear profiles ...

Abstract: Vortex generators (VG) are widely used in the aerospace industry, mainly to control boundary layer transition and to delay flow separations. A different type of VG is used on race cars for manipulating the flow over and ...

Abstract: Experiments in a refractive index-matched axial turbomachine facility show that semicircular skewed axial casing grooves (ACGs) reduce the stall flowrate by 40% but cause a 2.4% decrease in the maximum efficiency. Aiming ...

Abstract: Challenges in turbulence modeling in the tip region of turbomachines include anisotropy, inhomogeneity, and non-equilibrium conditions, resulting in poor correlations between Reynolds stresses and the corresponding mean ...

Abstract: This experimental study characterizes the interactions of axial casing grooves (ACGs) with the flow in the tip region of an axial turbomachine. The tests involve grooves with the same inlet overlapping with the rotor blade ...

Abstract: This experimental study examines the evolution of turbulence across an axial compressor and its modification by semicircular axial casing grooves (ACGs) at the pre-stall and near the best efficiency (BEP) flowrates. The ...

Abstract: Stereo particle image velocimetry (SPIV) measurements in a series of axial planes investigate the impact of operating conditions and semicircular axial casing grooves (ACGs) on the evolution of flow structure across multiple ...