Influence of Tip Speed Ratio on Wake Flow Characteristics Utilizing Fully Resolved CFD Methodology

Finally, Section 6 contains a sensitivity analysis of the case study with respect to: (1) isentropic power output, (2) tip clearance height, (3) minimum hub-to-tip ratio, (4)

At X = 2D, in figure 3d, the footprint of the tower wake inside the rotor disc was almost entirely eroded by turbulent diffusion, while the high velocity fluid was still located

For setups of tight inter-turbine spacing and full wake impingement tip speed ratio and pitch angle control might be applied for a reduction of upstream turbine thrust loads at

Although tip speed ratio curtailment seems to have a rather small potential for a wind farm power optimization, it could be an effective method to distribute loads between the

Time-dependent variation in the flow field on the runner surface crown during an angular movement of the runner of 24 ˝ at the runaway speed (α = 9.9 ˝ ); this zoom of the

This report gives a preliminary assessment of the fluid dynamical implications of the radome at different freestream velocities, based on computational fluid dynamics (CFD).

To sum up: if we know the natural frequency and damping ratio of the rotor speed control and dynamic wake modes, we can infer much about the response of the wind turbine to the

On the other hand, CFD solutions for a standard dis- placement ventilation configuration is used to decom- pose the flow field variables in terms of Archimedes number dependent