环形叶栅流量系数试验研究

Research of the Discharge Coefficient in an Annular Cascade

流量系数是通流计算中一个重要的参数,而目前一般是根据经验公式计算流量系数,但是这样难以计算准确进而影响其它性能参数的计算。因此本文通过试验对流量系数进行测量,同时讨论压比和温度其影响,为汽轮机通流设计提供理论依据和数据支持。

The discharge coefficient is an important parameter in the flow calculation.At present,the fdischarge coefficient is calculated according to the empirical formula,but it is difficult to calculate accurately,which will affect the calculation of other performance parameters.Therefore,this paper measures the discharge coefficient through tests,and discusses the influence of pressure ratio and temperature,so as to provide theoretical basis and data support for the flow passage design of steam turbine.