On the robustness and accuracy of large-eddy simulation in predicting complex internal flow of a gas-turbine combustor

doi:10.1063/5.0159887

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	On the robustness and accuracy of large-eddy simulation in predicting complex internal flow of a gas-turbine combustor
	Qiao Z(乔正); Chen Y(陈与); Wan, Kaidi ; Lv Y(吕钰)
刊名	PHYSICS OF FLUIDS
	2023-08-01
卷号	35 期号:8 页码:85120
ISSN号	1070-6631
DOI	10.1063/5.0159887
英文摘要	The objective of this study is to evaluate the effects of numerical and model setups on the large-eddy simulation (LES) predictive capability for the internal flow of a propulsion-relevant configuration. The specific focus is placed on assessing the LES technique with lower mesh resolutions, which is of technological relevance to practical industrial design. A set of Riemann flux formulations and commonly used subgrid-scale models are considered in this work to produce a hierarchy of LES setups with different dissipation effects (both numerically and physically). The LES results obtained from different setups are compared qualitatively in terms of the key flow characteristics and evaluated quantitatively against the experimental measurements. The error landscape is generated to reveal the predictive qualities of different LES setups. The study shows that the choice of numerical flux formulation plays a prominent role in governing the general flow patterns, while the effect of subgrid-scale model is mainly manifested in transient flow characteristics, such as vortex breakdown and swirl-induced vortical structures. Based on the error analysis, it is found that lower dissipative LES setup is not always beneficial to the LES accuracy. This is in contrast to the commonly accepted understanding in literature for the LES, which was established solely with canonical flow configurations.
分类号	一类/力学重要期刊
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:001045018300006
资助机构	NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics [11988102] ; Chinese Academy of Sciences (CAS) ; Bureau of International Cooperation CAS [025GJHZ2022112FN] ; National Natural Science Foundation of China [52076008] ; Zhejiang Provincial Natural Science Foundation [LGJ21E060001]
其他责任者	Lv, Y (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Lv, Y (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92594]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.{Qiao, Zheng, Chen, Yu, Lv, Yu} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.{Qiao, Zheng, Chen, Yu, Lv, Yu} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China 3.{Wan, Kaidi} Beihang Univ, Ningbo Inst Technol, Aircraft & Prop Lab, Ningbo 315832, Peoples R China 4.{Wan, Kaidi} Beihang Univ, Sch Aeronaut Sci & Engn, Natl Lab Computat Fluid Dynam, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Qiao Z,Chen Y,Wan, Kaidi,et al. On the robustness and accuracy of large-eddy simulation in predicting complex internal flow of a gas-turbine combustor[J]. PHYSICS OF FLUIDS,2023,35(8):85120.
APA	乔正,陈与,Wan, Kaidi,&吕钰.(2023).On the robustness and accuracy of large-eddy simulation in predicting complex internal flow of a gas-turbine combustor.PHYSICS OF FLUIDS,35(8),85120.
MLA	乔正,et al."On the robustness and accuracy of large-eddy simulation in predicting complex internal flow of a gas-turbine combustor".PHYSICS OF FLUIDS 35.8(2023):85120.