中文摘要：

分析了对转涡轮方案的影响因素，推导了带导叶对转涡轮基元级速度三角形参数与涡轮效率和出功比的关系，进行了速度三角形的分析，得到了带导叶对转涡轮速度三角形的设计规律。为验证此规律，选取了基元级基本参数，在此基础上，进行了考虑冷却的1＋1对转涡轮气动方案的设计；并利用三维数值模拟手段对所设计的气动方案进行了验证。结果表明，所完成的涡轮气动方案能够满足设计要求，且选取的速度三角形基本参数与数值模拟结果较为接近。

英文摘要：

The factors which had impact on the forms of counter-rotating turbine were analyzed in detail based on the characteristics of counter-rotating turbine. By analyzing the counter-rotating turbine velocity triangles and how the efficiency and work ratio varied by the parameters of the velocity triangles, the regular of how to select the velocity triangles of counter-rotating turbine was developed. A new counter-rotating turbine which had premeditated the coolant was designed. The results of 3D viscous numerical simulation show that the turbine meets the design requirements with a high efficiency, and the regular was tested an verified.