Sentence examples for higher solidity from inspiring English sources
The results indicated that the higher solidity and higher tip speed ratio rotors are more noisy than the normal turbines.
In general, although the NACA airfoil made significant changes in the lift and drag force against the angle of attack, the use of the longer chord length and smaller main diameter (i.e., higher solidity) increased the power performance in the range of low tip-speed ratio (TSR).
Usually, a tumor has a higher solidity value than normal brain tissue, as shown in Figure 7.
Thus, high solidity pitched blade turbine (HSPBT), which has a higher blade to impeller area has been developed.
High solidity turbines, with solidity close to unity, have much higher CP, but at smaller TSRs and a short range of TSRs.
Therefore, a theoretical model such as the DMST (double multiple stream tube) is not suitable for predicting the performance of H-Darrieus with a high solidity.
The turbine's high solidity design, morphing blades, and Knoller-Betz effect limited the RPM variations over a wide range of water velocities.
However, there is still hardly any quantitative measure of the self-starting, torque, power coefficient etc. with increased rotor solidity so as to obtain some performance insights of high solidity unsymmetrical blade H-Darrieus rotor in low wind speed condition.
The chapter concludes with performance curves of various wind turbine designs ranging from high solidity multi-bladed rotors used in wind pumps to the modern three bladed horizontal axis rotors used for electricity generation.
Instead of using symmetrical blades if unsymmetrical or cambered blades are used with high solidity, then starting performance of H-Darrieus rotor along with its power coefficients can be improved.
The turbine's high solidity, flexible foils with self-adjustable cambering, and pivot and spring arrangements on the blade and arm connections enabled the following: reduced turbine vibrations, dynamic foil adjustments, a passive blade pitch action, and limited variation in rotational speed versus incoming flow velocity.
