相比于传统涡轮，特斯拉涡轮具有结构简易、制造公差要求低和密封性能突出等优点，能适应各种复杂的工作环境，但其能量转换效率相对较低，若能有针对性地解决能量损失问题，特斯拉涡轮的利用效率会有大幅提高。本文综述了特斯拉涡轮的发展现状，对涡轮喷嘴数量和结构、工作流体类型、圆盘间隙及厚度、出口半径等影响涡轮效率的因素进行了总结，分析发现以R245ca为工作流体、圆盘厚度为1 mm、盘间间隙为0.9 mm时特斯拉涡轮工作效率最高。同时，针对涡轮结构特点及其应用场景，探究了其应用于海洋能发电系统的可行性。

Compared with traditional turbines,Tesla turbine has the advantages of simple structure,low manufacturing tolerance requirements and outstanding sealing performance,which is suitable to various complex working environments.However,its energy conversion efficiency is relatively low.If the problem of energy loss can be solved,the utilization efficiency of Tesla turbine will be greatly improved.This paper reviews the development status of Tesla turbine,and furtherly summarizes the factors affecting the efficiency of Tesla turbine,such as the number and structure of turbine nozzles,the type of working fluid,disc clearance and thickness,outlet radius and so on.The analysis finds that the working efficiency of Tesla turbine is the highest when R245ca is the working fluid,disc thickness is 1mm and disc clearance is 0.9 mm.Aiming at the structural characteristics and application prospects of turbine,the feasibility of its application in marine power generation system is explored.

TK14

国家自然科学基金(51876114)；上海科学技术委员会资助项目(19DZ2254800)