JET ENTRANCE CONFIGURATIONS AND SWIRL MOTION EFFECTS ON HEAT TRANSFER CHARACTERISTICS INSIDE BLADE LEADING EDGE OF THE GAS TURBINE

被引：0
作者：
Elwekeel, Fifi [1 ]
Abdala, Antar [2 ]
Zheng, Qun [3 ]
机构：
[1] Helwan Univ, Fac Ind Educ, Cairo, Egypt
[2] Helwan Univ, Matareya Branch, Fac Engn, Cairo 11718, Egypt
[3] Harbin Engn Univ, Harbin 150001, Peoples R China
来源：
PROCEEDINGS OF ASME TURBO EXPO 2022: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, GT2022, VOL 6B | 2022年
关键词：
swirl; gas turbine; internal cooling; inlet shape; TRANSFER ENHANCEMENT; IMPINGING JETS; PRESSURE LOSS; CHAMBERS; RATIO; FLOW;
D O I：
暂无
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
In the present work a simulation is conducted by CFD to predict the cooling performance in a chamber with a swirl motion using nine shapes of injection entrances. The injection entrances are with different cross sections; rectangular (case A), circular (case B), half circular (case C), square (case D), elliptical ( case E), equilateral triangular (case F) and three configurations of convergent shapes (case G, H, I). The simulation is performed at constant hydraulic diameter for all shapes and at varied Reynolds number. The investigation parameters are temperature distribution in swirl chamber, circumferential and total velocities, circumferential and axially averaged Nusselt numbers, friction factor and thermal performance parameter. The results show that the temperature increases in all cases compared to the rectangular entrance shape. The convergent shapes give high performance in the heat transfer as well as high friction. Circular entrance shape has a higher circumferential and total velocity compared to all cases.
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页数：10
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[11]   Heat transfer and pressure loss characteristics in a swirl cooling tube with dimples on the tube inner surface [J].
Liu, Yuyang ;
Rao, Yu ;
Weigand, Bernhard .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2019, 128 :54-65
[12]   Numerical study on the effect of jet nozzle aspect ratio and jet angle on swirl cooling in a model of a turbine blade leading edge cooling passage [J].
Liu, Zhao ;
Li, Jun ;
Feng, Zhenping ;
Simon, Terrence .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2015, 90 :986-1000
[13]   Investigations of flow structures and heat transfer in a swirl chamber with different inlet chambers and various aerodynamic parameters [J].
Luan, Yuxuan ;
Du, Changhe ;
Fan, Xiaojun ;
Wang, Jiefeng ;
Li, Liang .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2018, 118 :551-561
[14]   Numerical study on the effects of multiple inlet slot configurations on swirl cooling of a gas turbine blade leading edge [J].
Mousavi, Seyed Morteza ;
Ghadimi, Behnam ;
Kowsary, Farshad .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2018, 90 :34-43
[15]   Forced convective heat transfer by swirling impinging jets issuing from nozzles equipped with twisted tapes [J].
Nanan, K. ;
Wongcharee, K. ;
Nuntadusit, C. ;
Eiamsa-ard, S. .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2012, 39 (06) :844-852
[16]   Visualization of flow and heat transfer characteristics for swirling impinging jet [J].
Nuntadusit, C. ;
Wae-hayee, M. ;
Bunyajitradulya, A. ;
Eiamsa-ard, S. .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2012, 39 (05) :640-648
[17]   Heat transfer enhancement by multiple swirling impinging jets with twisted-tape swirl generators [J].
Nuntadusit, C. ;
Wae-hayee, M. ;
Bunyajitradulya, A. ;
Eiamsa-ard, S. .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2012, 39 (01) :102-107
[18]   Effects of circumferential nozzle number and temperature ratio on swirl cooling characteristics [J].
Wu, Fan ;
Li, Liang ;
Du, Changhe ;
Wang, Jiefeng ;
Fan, Xiaojun .
APPLIED THERMAL ENGINEERING, 2019, 154 :332-342
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