新型重叠网格洞面优化方法及其应用

doi:10.7527/S1000-6893.2015.0077

Abstract

Abstract:

Highly automated overlapping optimization algorithm plays an important role in the overlapping grid. In view of the fact that the result of grids optimized by cut-paste algorithm is not determined and predictable, a new mixed overlapping optimization algorithm is presented which combines the distance optimization principle with the cut-paste algorithm. The distance optimization principle has been adopted to deal with the grids between objects. Hence the fringe boundary layers will be located at the field between objects to make the location of overlapping area better and more predictable. By maximizing the distance value for background grid, we cut the background grids which fall into the grids of other objects. Meanwhile the cut-paste algorithm is employed to optimize the grids, which are overlappingped near or on the wall. The new mixed algorithm improves the quality of overlapping and it is totally automatic. With the enhanced algorithm, three typical aerodynamic cases are performed and excellent agreement of computational results compared with experimental data has been achieved. Moreover, the flow variables at the overlapping zone are transferred accurately, the contour has smooth transition to different grids and the flow describes accurately. The enhanced algorithm shows greater accuracy and practicality than the previous methods.

Key words: computational fluid dynamics, overlapping grid, wall distance, cut-paste algorithm, overlapping optimization

CLC Number:

V211.3

WANG Wen, YAN Chao, YUAN Wu, XI Ke, HUANG Yu. Novel overlapping optimization algorithm of overlapping grid and its applications[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(3): 826-835.

References

[1] BENEK J A, STEGER J L, DOUGHERTY F C. A flexible grid embedding technique with applications to the Euler equations:AIAA-1983-1944[R]. Reston:AIAA,1983.
[2] ROGERS S E, ROTH K, NASH S M, et al. Advances in overset CFD processes applied to subsonic high-lift aircraft:AIAA-2000-4216[R]. Reston:AIAA, 2000.
[3] LEE S, PARK M, CHO K W, et al. A new automated chimera method for the prediction of store trajectory:AIAA-1999-3131[R]. Reston:AIAA, 1999.
[4] KLOPFER G H, KLESS J E, LEE H C, et al. Validation of overflow for computing Plume effects during the Ares I stage separation process:AIAA-2011-170[R]. Reston:AIAA, 2011.
[5] ROGERS S E, SUHS N E, DIETZ W E. PEGASUS 5:an automated preprocessor for overset-grid computational fluid dynamics[J]. AIAA Journal, 2003, 41(6):1037-1045.
[6] WEY T C. Development of a mesh interface generator for overlapped structured grids:AIAA-1994-1924[R]. Reston:AIAA, 1994.
[7] CHO K W, KWON J H, SEUNGSOO L. Development of a fully systemized chimera methodology for stery/unsteady problems[J]. Journal of Aircraft, 1999, 36(6):973-980.
[8] LEE Y L, BAEDER J D. Implicit hole cutting——A new approach to overset grid connectivity:AIAA-2003-4128[R]. Reston:AIAA, 2003.
[9] 刘秋洪, 屈琨, 蔡晋生, 等. 嵌套重叠网格的构造策略及其隐式切割[J]. 中国科学:物理学力学天文学, 2013, 43(2):186-198. LIU Q H, QU K, CAI J S, et al. An automated chimera method based on a hierachical overset grid strategy and the implicit hole cutting technique[J]. SCIENTIA SINICA Physica, Mechanica & Astronomica, 2013, 43(2):186-198(in Chinese).
[10] 徐佳, 刘秋洪, 蔡晋生, 等. 基于隐式嵌套重叠网格技术的阻力预测[J]. 航空学报, 2013, 34(2):208-217. XU J, LIU Q H, CAI J S, et al. Drag prediction based on overset grids with implict hole cutting technique[J]. Acta Aeronautica et Astronautica Sinica, 2013, 34(2):208-217(in Chinese).
[11] 范晶晶, 阎超, 张辉. 重叠网格洞面优化技术的改进与应用[J]. 航空学报, 2010, 31(6):1127-1133. FAN J J, YAN C, ZHANG H. Improvement of hole-surface optimization technique in overset grids and its application[J]. Acta Aeronautica et Astronautica Sinica, 2010, 31(6):1127-1133(in Chinese).
[12] 袁武, 阎超, 杨威. 割补法的改进和应用[J]. 空气动力学学报, 2013, 31(6):704-709. YUAN W, YAN C, YANG W. Enhancement and application of cut-paste algorithm[J]. Acta Aerodynamica Sinica, 2013, 31(6):704-709(in Chinese).
[13] LÖHNER R, SHAROV D, LUO H, et al. Overlapping unstructured grid:AIAA-2001-0439[R]. Reston:AIAA, 2001.
[14] 袁武, 阎超, 席柯. 洞映射方法的研究和改进[J].北京航空航天大学学报, 2012, 38(4):563-568. YUAN W, YAN C, XI K. Investigation and enhancement of hole mapping method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(4):563-568(in Chinese).
[15] BONET J, PERAIRE J. An alternating digital tree(ADT) algorithm for 3D geometric searching and intersection problems[J]. International Journal for Numerical Methods in Engineering, 1991, 31:1-17.
[16] 袁武. 新型重叠网格方法研究及在复杂多体气动问题中的应用[D]. 北京:北京航空航天大学, 2012:41-49. YUAN W. Investingations on novel chimera grid methods and its applications to complex multibody aerodynamic problems[D]. Beijing:Beihang University, 2012:41-49(in Chinese).
[17] 阎超. 计算流体力学方法及应用[M]. 北京:北京航空航天大学出版社, 2006:18-25. YAN C. Computational fluid dynamic's methods and applications[M]. Beijing:Beihang University Press, 2006:18-25(in Chinese).
[18] COOK P, MCDONALD M, FIRMIN M. Aerofoil REA2822 pressure distributions, and boundary layer and wake measurements, experimental data base for counter program assessment:AGARD Report AR 138[R].1979.
[19] CHIN V D, PETER D W, SPAID F W, et al. Flow field measurements about a multi-element airfoil at high Reynolds numbers:AIAA-1993-3137[R]. Reston:AIAA,1993.
[20] KELLY R, BRODERSEN O. Summary of data from the second AIAA CFD drag prediction workshop:AIAA-2004-555[R]. Reston:AIAA, 2004.
[21] WILLIAM M C, PIETER G B. Zipper grids for force and moment computation on overset grids:AIAA-1995-1681[R]. Reston:AIAA, 1995.
[22] SCLAFANI J, DEHAAN M A, VASSBERG J C. OVERFLOW drag predictions for the DLR-F6 transport configuration:A DPW-Ⅱ case study:AIAA-2004-0393[R]. Reston:AIAA, 2004.

Novel overlapping optimization algorithm of overlapping grid and its applications

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Qi LIU, Yongjie SHI, Zhiyuan HU, Guohua XU. Parameter effects analysis on aerodynamic and aeroacoustic characteristics of coaxial rigid rotor [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 528856-528856.
[2]	Fengxia LU, Kun WEI, Chunlei WANG, Heyun BAO, Rupeng ZHU. Accessibility of metal particles in three-phase flow of helicopter intermediate gearbox [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(1): 128524-128524.
[3]	Jiong REN, Gang WANG, Guodong HU, Xiaolu SHI. Adaptive finite volume method with Walsh basis functions [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(8): 127444-127444.
[4]	Wenbo CAO, Yilang LIU, Weiwei ZHANG. Accelerated convergence method for fluid dynamics solvers based on reduced⁃order model and gradient optimization [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(6): 127090-127090.
[5]	Sihua LIU, Zhanying WANG, Lijian LI, Mindi ZHANG. Influence of nose shapes on high-speed water entry stability of projectile [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(21): 528437-528437.
[6]	Yuxiang FAN, Rui ZHAO, Zhengxuan ZUO, Guang YANG, Yu LI. Gas⁃injection effects on wall heat flux and skin⁃friction of vehicles [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(21): 528587-528587.
[7]	Jianling QIAO, Zhonghua HAN, Yulin DING, Wenping SONG, Bifeng SONG. Effects of stratified atmospheric turbulence on farfield sonic boom propagation [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(2): 626350-626350.
[8]	Shengye WANG, Xiaogang DENG, Yidao DONG, Dongfang WANG, Jiahong CAI. High-order numerical methods for engineering turbulence simulation [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(15): 528728-528728.
[9]	XIAHOU Tangfan, CHEN Jiangtao, SHAO Zhidong, WU Xiaojun, LIU Yu. Model validation metrics for CFD numerical simulation under aleatory and epistemic uncertainty [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(8): 25716-025716.
[10]	CHEN Guangqiang, DOU Guohui, WEI Haogong, ZOU Xin, LI Qi, LIU Zhou, ZHOU Weijiang. Air data sensing technology of Mars probe [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(3): 626619-626619.
[11]	YI Jianmiao, DENG Feng, QIN Ning, LIU Xueqiang. Fast prediction of transonic flow field using deep learning method [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(11): 526747-526747.
[12]	WANG Di, QIAN Zhansen, LENG Yan. High-order scheme discretization of sonic boom propagation model based on augmented Burgers equation [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(1): 124916-124916.
[13]	BAO Jun, WANG Yu, NIU Qian, ZHU Xidong, CHENG Jianjie. Influencing parameters and film flow mechanism of spray droplet impacting liquid film [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(S1): 726360-726360.
[14]	CHEN Jianqiang, WU Xiaojun, ZHANG Jian, LI Bin, JIA Hongyin, ZHOU Naichun. FlowStar: General unstructured-grid CFD software for National Numerical Windtunnel (NNW) Project [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(9): 625739-625739.
[15]	GUO Yongheng, JIANG Xiong, XIAO Zhongyun, WANG Ziwei, LU Fengshun. An automatic parallel and implicit assembly method for overset grid [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(6): 124369-124369.