The numerical analysis of time-space structures in the large turning angle axial cascade with a certain large attack angle condition suffered from unsteady incoming wake excitation has been carried out.

Two-dimensional model,where the influence of wall boundary layers is neglected and inlet jet-wake velocity patterns are prescribed,was applied to simulate one vanless diffuser with large width-radius(ratio.

Assuming that the flow inside the vaneless diffuser was incompressible two dimensional flow,a state matrix model was established and analysis was made on the jet-wake type disturbance at the inlet of the diffuser based on published literatures.

The emphasis was put on the study of the effect of 8 mm diameter air bubbles arranged at different spatial positions on the rear wake flows and their interactions.

An experimental study on the properties of the wake in a horizontal-axis wind turbine(HAWT) rotor were carried out at model scale,and the formation and development of the three-dimensional wake were obtained using a single slanted hot-wire probe and phase-locked averaging technique.

The wake behind a three-blade horizontal-axis wind turbine model has been investigated at model scale, using a single slanted hot-wire probe.

An experimental investigation into the properties of the wake behind a horizontal-axis wind turbine (HAWT) rotor is carried out at model scale, using a single slanted hot-wire probe.