哈尔滨工程大学学报2025，Vol.46Issue(10)：2012-2020,9.DOI:10.11990/jheu.202403003
预旋系统流动换热与功耗特性数值研究
Numerical simulation of the airflow,heat transfer,and power consumption characteristics of pre-swirling systems
摘要
Abstract
The power and heat conversion efficiency of pre-swirling systems significantly influences the cooling effec-tiveness of the rotating blades on the airflow within the cavity.A two-dimensional axisymmetric swirling model of a pre-swirling system in a turbofan engine was constructed using computational fluid dynamics methods to analyze the flow and heat transfer characteristics under various conditions.The correlation mechanisms between power con-sumption and three critical parameters—mass flow rate,inlet air flow angle,and turbine rotational speed—were re-vealed through theoretical analysis and numerical simulation.The results show that the power consumption increases by an average of 3.19%as the airflow angle rises from 12° to 15°.When the inlet mass flow rate ranges from 5 kg/s to 7 kg/s,the flow augmentation of 1 kg/s leads to a corresponding rise in the power consumption by 36.01%.With a turbine speed range of 8 000 r/min to 16 000 r/min,a 2 000 r/min increase in the turbine speed leads to a 20.06%increase in power consumption.A strong correlation is revealed between power consumption,in-let mass flow,and turbine speed through polynomial function fitting.关键词
预旋系统/数值模拟/流动换热/功率损耗/入口质量流量/入口气流角/涡轮转速/函数拟合Key words
pre-swirl system/numerical simulation/flow and heat transfer/power consumption/inlet mass flow/airflow angle/turbine speed/function fitting引用本文复制引用
穆林,谢彭未,缪洪超,王爽,赵红娇,尚妍,浦航,东明..预旋系统流动换热与功耗特性数值研究[J].哈尔滨工程大学学报,2025,46(10):2012-2020,9.基金项目
先进航空动力创新工作站项目(依托中国航空发动机研究院设立)(HKCX2022-02-002) （依托中国航空发动机研究院设立）
中国博士后科学基金项目(2021M700663) （2021M700663）
辽宁省自然科学基金项目(2022-BS-085) （2022-BS-085）
中央高校基本科研业务费项目(DUT220N202). （DUT220N202）
