The article presents the implementations of free vortex law to blade last stage a gas-steam turbine. First, thermodynamic analysis was carried out, determining parameters at inlet, then number stages high and low-pressure part turbine constructed, together with kinematics velocity vectors for subsequent axial step take into account variation peripheral component medium working radius in discret...

Abstract For the high head pump turbine, unit instability during its operation mainly dues to hydraulic vibration inside machinery, which will cause mechanical fatigue failure under certain circumstances. In this paper, flow pattern and runner axial water thrust in turbine model partial load were analyzed by numerical simulation. The internal field vortex characteristics of obtain reasons for d...

If the effects of fluid rotation are neglected, one-dimensional theory for a single actuator disc gives a maximum power coefficient of 16/27. This is the usual Betz limit for the power of horizontal-axis wind turbines. Tandem discs are a more appropriate representation for a vertical-axis, Darrieum, wind turbine and give more accurate predictions of turbine performance when used in conjunction ...