针对燃气轮机动-静旋转盘腔流动特性进行研究，采用压力修正方法求解动量方程，加入基于盘面摩擦系数的角动量守恒方程求解旋流系数，提出了基于当地流动参数Cqr=0.1的盘腔流态判断方法，采用考虑摩擦力矩做功的能量守恒方程来模拟温升，从而建立了盘腔流动的一维高精度方法。最后通过与三维CFD计算分析对比了文献\[14\]、文献\[12\]两种摩擦系数计算模型对流动及温升模拟的影响。研究表明：采用Cqr=0.1盘腔流态判定准则的一维计算结果与CFD结果吻合，流态分界位置基本一致；PAP模型计算的压增与CFD吻合较好，差异在5%，文献\[12\]在低转速条件下最大差异在20%；文献\[14\]计算的风阻温升与CFD吻合较好，差异在2%，而文献\[12\]模型差异在15%左右，故采用文献\[14\]模型可有效提高盘腔模拟的精度。

In this paper,the flow characteristics of a gas turbine rotating disc cavity are studied.The momentum equation is solved by using the pressure correction method.The coreswirl ratio is solved by the angular momentum conservation equation based on the friction coefficient of the disk surface.A method based on the local flow parameter Cqr=0.1 is proposed to determine the flow structures of the Cavities.The energy conservation equation is used to simulate the temperature rise,and a highprecision method for the disc cavity flow is established.Finally,the influence of two friction coefficient models of Paper\[14\] and Paper\[12\] on the simulation of flow and temperature rise is analyzed and compared with threedimensional CFD calculation.The results of the study show that the onedimensional calculation results using the Cqr=0.1 coincide with the CFD results,and the flow demarcation position is basically the same.the Paper\[14\] model is in good agreement with the CFD,with the difference of 5%,and the maximum difference of 20% under the low speed condition.The windage temperature rise in the Paper\[14\] calculation is in good agreement with the CFD,and the difference is 2%,while Paper\[12\] model has 15% difference.So the Paper\[14\] model has improved accuracy in simulating the disc cavity.

TK473

黑龙江省杰出青年科学基金（JC2018012）；“两机专项”-基础研究：天然气燃气轮机燃烧室低污染分级分区燃烧机理及组织方法研究（2017-III-0006-0031）；船舶与海洋工程动力系统国家工程实验室-海洋工程燃气轮机实验室资助