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机载风能系统动力学建模
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作者 沈婉慧子 《科技创新与应用》 2020年第20期40-41,共2页
机载风能(AWE)具有发电成本低、发电效率高、环保等优势,对机载风能系统(AWES)及其发电技术的研究在高空风能利用领域具有重要的意义。为了使机载风能系统可靠且持久地运行,系统建模以及在发电过程中控制系绳翼飞行是本领域的关键问题。... 机载风能(AWE)具有发电成本低、发电效率高、环保等优势,对机载风能系统(AWES)及其发电技术的研究在高空风能利用领域具有重要的意义。为了使机载风能系统可靠且持久地运行,系统建模以及在发电过程中控制系绳翼飞行是本领域的关键问题。AWES是动力学和空气动力学相互作用的产物,对AWES动力学的建模是设计的基础,需要从简单的模型开始。因此文章提出了一个简单的机载风能系统动力学模型。 展开更多
关键词 机载风能系统 动力学建模 风筝发电
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Biaxial strain-induced enhancement in the thermoelectric performance of monolayer WSe_2
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作者 沈婉慧子 邹代峰 +1 位作者 聂国政 许英 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第11期446-451,共6页
The effects of biaxial strain on the electronic structure and thermoelectric properties of monolayer WSe2 have been investigated by using first-principles calculations and the semi-classical Boltzmann transport theory... The effects of biaxial strain on the electronic structure and thermoelectric properties of monolayer WSe2 have been investigated by using first-principles calculations and the semi-classical Boltzmann transport theory. The electronic band gap decreases under strain, and the band structure near the Fermi level of monolayer WSe2 is modified by the applied biaxial strain. Furthermore, the doping dependence of the thermoelectric properties of n-and p-doped monolayer WSe2 under biaxial strain is estimated. The obtained results show that the power factor of n-doped monolayer WSe2 can be increased by compressive strain while that of p-doping can be increased with tensile strain. Strain engineering thus provides a direct method to control the electronic and thermoelectric properties in these two-dimensional transition metal dichalcogenides materials. 展开更多
关键词 monolayer WSe2 biaxial strain thermoelectric properties first-principles
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