Vortices inside a single-stage axial air turbine captured by Particle Image Velocimetry

Abstract

Particle Image Velocimetry (PIV) is an experimental method of fluid research resulting into a spatially resolved two-dimensional velocity field. We measured the velocity inside a single-stage axial test turbine at the Czech Aerospace Research Centre. We studied the axial × tangential plane just behind the rotor wheel at the tip radius under three regimes: underloaded, designed and overloaded ones. We found individual vortices in the instantaneous snapshots and we analyze their properties statistically.

How Manufacturing Inaccuracies Affect Vortices in an Airfoil Wake

“…More details about the fitting algorithm and starting positions are in our previous article [18]. We already used this algorithm for the flow inside a single-stage axial turbine [19]. The three-dimensional…”