Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2021 , Vol. 55 >Issue 11: 1333 - 1342

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2020.427

Unsteadiness and Modal Analysis of Ridge Ice-Induced Separation in Post-Stall Conditions via IDDES

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  • a. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China
    b. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    c. Center for High Performance Computing, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2020-12-21

  Online published: 2021-09-22

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Abstract

High-resolution simulation of shear layer oscillation induced by ridge ice in post-stall condition is conducted via the improved delayed detached-eddy simulation (IDDES) method. The flow-field evolution characteristics of large scale separation in high Reynolds number condition are described. It is shown that the ridge ice and trailing edge of the lower surface induce the development of shear flow at the same time. The wall is not reattached by the shear layer induced by ridge ice, and the “up-wash” flow from the lower surface is interacted with the shear layer, which lead to the formation of large-scale coherent structures. Combined with the spectral analysis, the pressure pulsation located in the shear layer is characterized by two typical frequencies, which are associated with Kelvin-Helmholtz instability and appear as the vortex pairing and shedding. Based on the proper orthogonal decomposition, the dominant mode of pressure pulsation between shear layers is extracted as large-scale coherent structures. The same peak value is shown in power density spectrum of dominant mode temporal coefficient and lift coefficient, which indicates that the large-scale coherent structure is connected with lift fluctuation.

Key words： ridge ice; shear layer oscillation; numerical simulation; spectrum analysis; modal analysis

Cite this article

TAN Xue, ZHANG Chen, XU Wenhao, WANG Fuxin, WEN Minhua . Unsteadiness and Modal Analysis of Ridge Ice-Induced Separation in Post-Stall Conditions via IDDES[J]. Journal of Shanghai Jiaotong University, 2021 , 55(11) : 1333 -1342 . DOI: 10.16183/j.cnki.jsjtu.2020.427

References

[1] 顾洪宇, 桑为民, 庞润, 等. 机翼热气防冰及冰脊形成数值模拟[J]. 气体物理, 2019, 4(4):41-49.
[1] GU Hongyu, SANG Weimin, PANG Run, et al. Numerical simulation of wing hot air anti-icing and ice ridge formation[J]. Physics of Gases, 2019, 4(4):41-49.
[2] ZHANG C, LIU H. Effect of drop size on the impact thermodynamics for supercooled large droplet in aircraft icing[J]. Physics of Fluids, 2016, 28(6):062107.
[3] POURYOUSSEFI S G, MIRZAEI M, NAZEMI M M, et al. Experimental study of ice accretion effects on aerodynamic performance of an NACA 23012 airfoil[J]. Chinese Journal of Aeronautics, 2016, 29(3):585-595.
[4] ZHANG Y, HABASHI W G, KHURRAM R A. Zonal detached-eddy simulation of turbulent unsteady flow over iced airfoils[J]. Journal of Aircraft, 2015, 53(1):168-181.
[5] 李焱鑫, 顾新. 民机SLD结冰研究和适航验证的发展与挑战[J]. 中国民航大学学报, 2020, 38(4):48-53.
[5] LI Yanxin, GU Xin. Development and challenges of supercooled large drop icing research for civil airplane airworthiness certification[J]. Journal of Civil Aviation University of China, 2020, 38(4):48-53.
[6] Federal Aviation Administration. Federal Aviation Administration on airplane and engine certification requirements in supercooled large drop, mixed phase, and ice crystal icing condition [EB/OL]. (2014-04-11)[2019-12-13]. http://www.federalregister.gov/documents/2014/11/04/2014-25789/airplane-and-engine-certification-requirements-in-supercooled-large drop-mixed-phase-and-ice-crystal-icing-condition.
[7] BROEREN A, BRAGG M. Effect of airfoil geometry on performance with simulated intercycle ice accretions[C]// 41st Aerospace Sciences Meeting and Exhibit. Reston, Virginia, USA: AIAA, 2003: 1-16.
[8] LEE S, BRAGG M B. Investigation of factors affecting iced-airfoil aerodynamics[J]. Journal of Aircraft, 2003, 40(3):499-508.
[9] 李冬, 张辰, 王福新, 等. 结冰对带舵面翼型流场的影响及其气动参数分析[J]. 上海交通大学学报, 2017, 51(3):367-373.
[9] LI Dong, ZHANG Chen, WANG Fuxin, et al. Effect of icing on airfoil with control surface and analysis of aerodynamic parameters[J]. Journal of Shanghai Jiao Tong University, 2017, 51(3):367-373.
[10] PAN J P, LOTH E. Detached eddy simulations for iced airfoils[J]. Journal of Aircraft, 2005, 42(6):1452-1461.
[11] TRAVIN A K, SHUR M L, SPALART P R, et al. Improvement of delayed detached-eddy simulation for LES with wall modelling[EB/OL]. (2006-09-07) [2020-10-21]. https://repository.tudelft.nl/islandora/object/uuid: dbcd7d38-60cb-4107-a6cf-9f4b5dd637a9?collection=research.
[12] XIAO M C, ZHANG Y F, ZHOU F. Numerical study of iced airfoils with horn features using large-eddy simulation[J]. Journal of Aircraft, 2018, 56(1):94-107.
[13] 张恒, 李杰, 龚志斌. 基于IDDES方法的翼型结冰失速分离流动数值模拟[J]. 空气动力学学报, 2016, 34(3):283-288.
[13] ZHANG Heng, LI Jie, GONG Zhibin. Numerical simulation of the stall separated flow around an iced airfoil based on IDDES[J]. Acta Aerodynamica Sinica, 2016, 34(3):283-288.
[14] HU S F, ZHANG C, LIU H, et al. Study on vortex shedding mode on the wake of horn/ridge ice contamination under high-Reynolds conditions[J]. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2019, 233(13):5045-5056.
[15] ANSELL P J, BRAGG M B. Unsteady modes in flowfield about airfoil with horn-ice shape[J]. Journal of Aircraft, 2015, 53(2):475-486.
[16] ANSELL P J, BRAGG M B. Characterization of low-frequency oscillations in the flowfield about an iced airfoil[J]. AIAA Journal, 2014, 53(3):629-637.
[17] MA X Y, SCHRÖDER A. Analysis of flapping motion of reattaching shear layer behind a two-dimensional backward-facing step[J]. Physics of Fluids, 2017, 29(11):115104.
[18] HU S F, ZHANG C, LIU H, et al. IDDES simulation of flow separation on an 3-D NACA23012 airfoil with spanwise ridge ice[C]// 2018 Atmospheric and Space Environments Conference. Atlanta, Georgia, USA: AIAA, 2018: 1-10.
[19] LI G H, FU X, WANG F X. High-resolution multi-code implementation of unsteady Navier-Stokes flow solver based on paralleled overset adaptive mesh refinement and high-order low-dissipation hybrid schemes[J]. International Journal of Computational Fluid Dynamics, 2017, 31(9):379-395.
[20] JAMESON A. Time dependent calculations using multigrid, with applications to unsteady flows past airfoils and wings[C]// 10th Computational Fluid Dynamics Conference. Honolulu, HI, USA: AIAA, 1991: 1-14.
[21] ZHANG C, HU S F, LI Y X, et al. Modal analysis of 3-D iced-airfoil aerodynamics based on proper orthogonal decomposition techniques[C]// AIAA Scitech 2019 Forum. San Diego, California, USA: AIAA, 2019: 1-11.
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