Aerodynamics of higher solildity vertical axis wind turbines

提出的研究计划是高固体度垂直轴风力涡轮机的空气动力学研究。固体度是叶片总面积与涡轮掠面积之比，较高的固体度可以用来降低涡轮转速，降低噪音，并潜在地减少振动。然而，更高的凝固度会导致涡轮叶片周围和涡轮内部更复杂的流动（包括大迎角、大量流动分离的动态失速和叶片-尾迹相互作用）。该研究将基础实验研究、计算建模和复杂流动的开发相结合，通过开发新型非对称叶片和叶尖小翼来提高涡轮效率。有四个主要目标：

The proposed research program is an investigation of the aerodynamics of higher solidity vertical axis wind turbines. Solidity is the ratio of the total blade area to the turbine swept area, and higher solidities can be used to lower turbine rotational speeds, reducing noise and potentially reducing vibration. However, these higher solidities lead to more complex flows (including high angles of attack, dynamic stall with massive flow separation and blade-wake interactions) around the turbine blades and through the turbine. The proposed research is a combination of fundamental experimental study, computational modeling and the exploitation of the complex flows to improve turbine efficiencies by developing novel asymmetric blade profiles and blade tip winglets. There are four main objectives: