Separate and Combined Effects of Surface Roughness and Thermal Barrier Coating on Vane Cooling Performance

doi:10.1115/1.4046428

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Separate and Combined Effects of Surface Roughness and Thermal Barrier Coating on Vane Cooling Performance
	Prapamonthon P 2,3; Yin B(银波)3; Yang GW(杨国伟)3; Zhang MH 1
刊名	JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS
	2020-10-01
卷号	12 期号:5 页码:15
关键词	gas-turbine heat transfer surface roughness cooling performance thermal barrier coating
ISSN号	1948-5085
DOI	10.1115/1.4046428
通讯作者	Yin, Bo(yinbo@imech.ac.cn)
英文摘要	This work investigates separate and combined effects of the vane surface roughness and thermal barrier coating (TBC) on the cooling performance of a film-cooled high-pressure turbine vane using computational fluid dynamics (CFD) with conjugate heat transfer (CHT) analysis. The cooling effectiveness and heat transfer coefficient, where are predicted within an investigated range of the roughness height from 5 to 20 mu m, are compared with those of the smooth vane. Results show that the roughness height increases local heat transfer coefficients in general in the suction side (SS) and the rear-half portion of the pressure side (PS), thereby reducing the cooling effectiveness. The results are different from those in the suction-side vicinity of the leading edge (LE) to further downstream of the pressure side due to uncertain local heat transfer coefficients. In addition, thermal sensitivity to the roughness height and TBC is investigated based on the volume basis in the roughness height range which is extended to 120 mu m. Results show that without TBC, a 120 mu m increase in the roughness height causes 24 K and 20 K rises of the average and maximum vane temperatures, respectively. With TBC, the average and maximum vane temperatures are reduced as much as 18 K and 27.8 K, respectively.
分类号	Q3
资助项目	Chinese National Key Research and Development (RD) Program[2017YFB1201304] ; National Natural Science Foundation of China[11702297] ; Informatization Plan of the Chinese Academy of Sciences[XXH13506-204]
WOS关键词	HEAT-TRANSFER ; BLADE
WOS研究方向	Thermodynamics ; Engineering
语种	英语
WOS记录号	WOS:000570032400017
资助机构	Chinese National Key Research and Development (RD) Program ; National Natural Science Foundation of China ; Informatization Plan of the Chinese Academy of Sciences
其他责任者	Yin, Bo
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85246]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.King Mongkuts Inst Technol Ladkrabang, Dept Aeronaut Engn, Int Acad Aviat Ind, Bangkok 10520, Thailand; 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Prapamonthon P,Yin B,Yang GW,et al. Separate and Combined Effects of Surface Roughness and Thermal Barrier Coating on Vane Cooling Performance[J]. JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS,2020,12(5):15.
APA	Prapamonthon P,银波,杨国伟,&Zhang MH.(2020).Separate and Combined Effects of Surface Roughness and Thermal Barrier Coating on Vane Cooling Performance.JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS,12(5),15.
MLA	Prapamonthon P,et al."Separate and Combined Effects of Surface Roughness and Thermal Barrier Coating on Vane Cooling Performance".JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS 12.5(2020):15.