Numerical Simulations for Effects of Seal Flow on Temperature Drop Characteristics of Pre-Swirl Air Supply System

被引：0

作者：

Wang X.-X. ^{[1
]}

Liu G.-W. ^{[1
]}

Gong W.-B. ^{[1
]}

Feng Q. ^{[1
]}

Liang L. ^{[1
]}

机构：

[1] School of Power and Energy, Northwestern Polytechnical University, Xi'an

来源：

Tuijin Jishu/Journal of Propulsion Technology | 2020年 / 41卷 / 12期

关键词：

Entropy increment; Mixed model; Pre-swirl air supply system; Seal flow; Temperature drop effectiveness;

D O I：

10.13675/j.cnki.tjjs.190670

中图分类号：

学科分类号：

摘要：

To find out the effects of the seal flow on temperature drop characteristics of pre-swirl air supply system, the study for the following factors on the inner seal outlet flow rate, the inner seal inlet flow rate, the inner seal inlet temperature and the inner seal inlet swirl ratio was carried out based on three-dimensional steady-state numerical simulations. The results show that under the condition that the supplied mass flow rate and pressure are constant, the seal flow out of the pre-swirl cavity has little influence on the supplied temperature, while the influence of the seal flow into the pre-swirl cavity is significant. When the inner seal inlet flow rate increases from 0 to 20% of the nozzle flow rate, the temperature drop effectiveness decreases by 31.3%. When the inner seal inlet temperature rises by 37K, the temperature drop effectiveness decreases by 29.2%. When the inner seal inlet swirl ratio increases from 0 to 0.8, the temperature drop effectiveness increases by 15.6%. © 2020, Editorial Department of Journal of Propulsion Technology. All right reserved.

引用

页码：2748 / 2756

页数：8

共 15 条

[1] Gupta A K, Ramerth D, Ramachandran D., Numerical Simulation of TOBI Flow-Analysis of the Cavity Between a Seal-Plate and HPT Disk with Pumping Vanes
[2] El-Oun Z B, Owen J M., Pre-Swirl Blade-Cooling Effectiveness in an Adiabatic Rotor-Stator System
[3] Geis T, Dittmann M, Dullenkopf K., Cooling Air Temperature Reduction in a Direct Transfer Pre-Swirl System, (2003)
[4] Yan Y, Gord M F, Lock G D, Et al., Fluid Dynamics of a Pre-Swirl Rotor-Stator System, ASME 47th International Gas Turbine and Aerospace Congress, (2002)
[5] Snowsill G D, Young C., Application of CFD to Assess the Performance of a Novel Pre-Swirl Configuration
[6] Zhang Feng, Wang Xinjun, Li Jun, Et al., Numerical Investigation on the Effect of Radial Location of Sealing Air Inlet and Its Geometry on the Sealing Performance of a Stator-Well Cavity, International Journal of Heat and Mass Transfer, 115, pp. 820-832, (2017)
[7] LIU Yu-xin, LIU Gao-wen, WU Heng, Et al., Numerical Investigation on Flow Characteristics of a Vane Shaped Hole Preswirl Nozzle, Journal of Propulsion Technology, 37, 2, pp. 332-338, (2016)
[8] LIU Gaowen, WU Heng, FENG Qing, Et al., Theoretical and Numerical Analysis on the Temperature Drop and Power Consumption of a Pre-Swirl System
[9] WU Heng, FENG Qing, LIU Gao-wen, Et al., Entropy Analysis of a Cover-Plate Pre-Swirl System, Journal of Propulsion Technology, 37, 11, pp. 2048-2054, (2016)
[10] CHEN Fan, WANG Suo-fang, ZHANG Guang-yu, Et al., Numerical Study on Effects of Receiver Holes Angles on Flow Characteristics of Pre-Swirl System, Journal of Propulsion Technology, 39, 7, pp. 1549-1555, (2018)

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