Usually, a tumor has a higher solidity value than normal brain tissue, as shown in Figure 7.
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.
High solidity turbines, with solidity close to unity, have much higher CP, but at smaller TSRs and a short range of TSRs.
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.
Thus, high solidity pitched blade turbine (HSPBT), which has a higher blade to impeller area has been developed.
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 turbine's high solidity design, morphing blades, and Knoller-Betz effect limited the RPM variations over a wide range of water velocities.
A small high-solidity vertical axis wind turbine, with dielectric barrier discharge plasma actuators installed on the blade leading-edges, was built and tested in a low-speed wind tunnel.
A three-bladed high-solidity VAWT is adopted as the research object with its chord length, blade span and rotor diameter being 0.2 m, 0.8 m and 0.8 m, respectively.
The clasped hands in particular stand out with a sharp solidity.
