Numerical Simulation Investigations of Unsteady Flow

Numerical simulation of fluctuating pressure of fighter vertical tail

  • MENG Dehong ,
  • SUN Yan ,
  • WANG Yuntao ,
  • LI Wei
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  • 1. Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China;
    2. State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China

Received date: 2016-01-18

  Revised date: 2016-04-11

  Online published: 2016-04-26

Supported by

National Key Research and Development Plan (2016YFB0200700)

Abstract

IDDES flow simulation technique based on hybrid RANS/LES method is realized on TRIP, a trisonic fluid simulation software platform. Separating flows around airfoil NACA0021 with 60° angle of attack and tandem cylinders are simulated to validate the precision of hybrid RANS/LES method. Then, fluctuating pressure of a fighter vertical tail is calculated with the presented RANS/LES method. Flow Mach number is 0.1, Reynolds number based on length of fighter is 2 million, and angles of attack are 20°, 30° and 40°. Fluctuating pressure of fighter vertical tail is analyzed through fluctuating pressure coefficients, power spectrum density of fluctuating pressure, space flow structure and side force response. Numerical results show that fluctuating pressure on tip of vertical tail increases obviously when vertical tail is immersed in broadband turbulence fluctuating flow behind the breakup of separating vortex from strake wing.

Cite this article

MENG Dehong , SUN Yan , WANG Yuntao , LI Wei . Numerical simulation of fluctuating pressure of fighter vertical tail[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016 , 37(8) : 2472 -2480 . DOI: 10.7527/S1000-6893.2016.0121

References

[1] 贾有, 杨智春. 一种飞机垂尾抖振载荷识别的新方法[J]. 航空学报, 2013, 34(10):2333-2340. JIA Y, YANG Z C. A new approach to identify buffet loads for aircraft vertical tail[J]. Acta Aeronautica et Astronautica Sinica, 2013, 34(10):2333-2340(in Chinese).
[2] 韩冰, 徐敏, 蔡天星, 等. 涡破裂诱导的垂尾抖振数值模拟[J]. 航空学报, 2012, 33(5):788-795. HAN B, XU M, CAI T X, et al. Numerical simulation of vertical tail buffeting induced by vortex breakdown[J]. Acta Aeronautica et Astronautica Sinica, 2012, 32(5):788-795(in Chinese).
[3] HUANG J T, GAO Z H. Buffeting numerical simulation coupled with aerodynamics and structure based on MDDES[J]. Science China Technological Sciences, 2013, 56:1550-1560.
[4] AHMED E, OSAMA A K, OKTAY B. F/A-18 twin-tail buffet modeling using non-linear eddy viscosity models:AIAA-2014-2447[R]. Reston:AIAA, 2014.
[5] 李劲杰, 杨青, 杨永年, 等. 边条翼布局双垂尾抖振表面压力脉动风洞实验研究[J]. 实验流体力学, 2006, 20(3):29-32. LI J J, YANG Q, YANG Y N, et al. Wind-tunnel unsteady pressure measurements of twin-vertical tail during buffet of strake-wing configuration[J]. Journal of Experiments in Fluid Mechanics, 2006, 20(3):29-32(in Chinese).
[6] SPALART P R, JOU W H, STRETLETS M, et al. Comments on the feasibility of LES for wings and on the hybrid RANS/LES approach[C]//Proceedings of the First AFOSR International Conference on DNS/LES. Colombus:Greyden Press, 1998:137-147.
[7] DECK S. Zonal-detached-eddy simulation of the flow around a high-lift configuration[J]. AIAA Journal, 2005, 43(11):2372-2384.
[8] SPALART P R, DECK S, SHUR M, et al. A new version of detached-eddy simulation, resistant to ambiguous grid densities[J]. Theory and Computation Fluid Dynamics, 2006, 20(3):181-195.
[9] SPALART P R. Detached-eddy simulation[J]. Annual Review of Fluid Mechanics, 2009, 41(1):181-202.
[10] SHUR MIKHAIL L, SPALART P R, STRELETS M K, et al. A hybrid RANS-LES approach with delayed-DES and wall-modelled LES capabilities[J]. International Journal of Heat and Fluid Flow, 2008, 29(6):1638-1649.
[11] MIKHAIL S G, ANDREY V G, JOCHEN S, et al. Development of DDES and IDDES formulations for the k-ω shear stress tranport model[J]. Flow Turbulence Combust, 2012, 88(3):431-449.
[12] DECK S. Numerical simulation of transonic buffet over a supercritical airfoil[J]. AIAA Journal, 2005, 43(7):1556-1566.
[13] 吴晶峰, 宁方飞. 后台阶流动的Hybrid RANS/LES模拟[J]. 北京航空航天大学学报, 2011, 37(6):701-704. WU J F, NING F F. Hybrid RANS-LES method applied to backward facing step flow[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(6):701-704(in Chinese).
[14] XIAO Z X, LIU J, LUO K Y, et al. Numerical investigations of massively separated flows past rudimentary landing gear using SST-DDES:AIAA-2012-0385[R]. Reston:AIAA, 2012.
[15] HUANG J B, XIAO Z X, LIU J, et al. Simulation of shock wave buffet and its suppression on an OAT15A supercritical airfoil by IDDES[J]. Science China:Physics, Mechanics and Astronomy, 2012, 55(2):260-271.
[16] 王运涛, 王光学, 张玉伦. TRIP2.0软件的确认:DPWⅡ复杂组合体的数值模拟[J]. 航空学报, 2008, 29(1):34-40. WANG Y T, WANG G X, ZHANG Y L. Validation of TRIP2.0:Numerical simulation of DPWⅡ complex configuration[J]. Acta Aeronautica et Astronautica Sinica, 2008, 29(1):34-40(in Chinese).
[17] 王运涛, 王光学, 张玉伦. 采用TRIP2.0软件计算DLR-F6构型的阻力[J]. 空气动力学学报, 2009, 27(1):108-113. WANG Y T, WANG G X, ZHANG Y L. Drag prediction of DLR-F6 configuration with TRIP2.0 software[J]. Acta Aerodynamica Sinica, 2009, 27(1):108-113(in Chinese).
[18] 王运涛, 王光学, 张玉伦. DPWⅢ机翼和翼身组合体构型数值模拟[J]. 空气动力学学报, 2011, 29(3):264-269. WANG Y T, WANG G X, ZHANG Y L. Numerical simulation of DPW Ⅲ wing and wing-body configurations[J]. Acta Aerodynamica Sinica, 2011, 29(3):264-269(in Chinese).
[19] 王运涛, 张书俊, 孟德虹. DPW4翼/身/平尾组合体的数值模拟[J]. 空气动力学学报, 2013, 31(6):739-744. WANG Y T, ZHANG S J, MENG D H. Numerical simulation and study for DPW4 wing/body/tail[J]. Acta Aerodynamica Sinica, 2013, 31(6):739-744(in Chinese).
[20] SPALART P R, ALLMARAS S R. A one-equation turbulence model for aerodynamic flows:AIAA-1992-0439[R]. Reston:AIAA, 1992.
[21] MENTER F R. Two equation eddy viscosity turbulence models for engineering application[J]. AIAA Journal, 1994, 32(8):1598-1605.

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