Comparison of drag prediction using RANS models and DDES for the DLR-F6 configuration using high order schemes

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Comparison of drag prediction using RANS models and DDES for the DLR-F6 configuration using high order schemes
	Gan JY; Shen YQ(申义庆); Zha GC
	2016
会议名称	54th AIAA Aerospace Sciences Meeting, 2016
会议日期	January 4, 2016 - January 8, 2016
会议地点	San Diego, CA, United states
关键词	Central differencing Drag prediction Finite difference scheme High order scheme Line relaxation Mesh refinement Trailing edges Turbulent models
中文摘要	This paper compares the accuracy and robustness of steady state RANS, unsteady RANS, and DDES turbulence models with high order schemes for predicting the drag of the DLR-F6 configuration. The implicit time marching method with unfactored Gauss-Seidel line relaxation is used with a 5th order WENO finite difference scheme for Navier-Stokes equations. The viscous terms are discretized using a 4th order conservative central differencing. The effect of grid size on the accuracy of drag prediction by using the different turbulent models are conducted on the coarse, medium and fine mesh models at the same angle of attack. The coarse mesh has about 10 drag counts deviation from the experiment, the medium mesh has 28 counts, and the fine mesh has about 15 counts difference. The RANS method achieves almost the same results as URANS and DDES at angle of attack of 0.49. The DDES have the least deviation from the experimental drag result and the closest pressure distribution to the experiment in the trailing edge separation zone. However, since the DDES uses the same mesh as the RANS model in this paper, the DDES results should not be considered as conclusive. A more rigorous mesh refinement study for the DDES is in progress. © 2016, American Institute of Aeronautics and Astronautics Inc, AIAA, All rights reserved.
收录类别	EI
会议网址	http://dx.doi.org/10.2514/6.2016-0553
会议录	54th AIAA Aerospace Sciences Meeting
语种	英语
ISBN号	9781624103933
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60154]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Gan JY,Shen YQ,Zha GC. Comparison of drag prediction using RANS models and DDES for the DLR-F6 configuration using high order schemes[C]. 见:54th AIAA Aerospace Sciences Meeting, 2016. San Diego, CA, United states. January 4, 2016 - January 8, 2016.http://dx.doi.org/10.2514/6.2016-0553 .