旋翼干扰流场数值模拟中的新型Blend低速预处理方法

doi:10.7527/S1000-6893.2018.21903

Abstract

Abstract: Steady low speed preconditioning is of poor convergence in dual-time iterations, and unsteady low speed preconditioning automatically reverts back to no preconditioning in numerical simulation of rotor aerodynamic interaction. To overcome these problems, we conduct an order analysis to blend the steady and unsteady low speed preconditioning eigenvalues matrices based on the unsteady low speed preconditioning framework. A new Blend low speed preconditioning method is developed from altering the dissipation formulation using this matrix.The unsteady flow around the circular cylinder, unsteady rotor-fuselage aerodynamic interaction in the helicopter forward and coupling ship/rotor flowfields are simulated to validate the proposed method. The numerical results indicate that the proposed method can solve the problem of automatical reversion of unsteady low speed preconditioning back to no preconditioning, and can improve significantly convergence of steady low speed preconditioning.

Key words: computational fluid dynamics (CFD), low speed preconditioning, rotor, ship, unsteady flow

CLC Number:

V211.3

CHEN Long, XIA Jian, TIAN Shuling. A new Blend low speed preconditioning method for numerical simulation of rotor interaction flowfield[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(8): 121903-121903.

References

[1] CROZON C, STEIJL R, BARAKOS G N. Numerical study of helicopter rotors in a ship airwake[J]. Journal of Aircraft, 2014, 51(6):1813-1832.
[2] 苏大成, 史勇杰, 徐国华, 等. 直升机/舰船耦合流场的数值模拟[J]. 航空学报, 2017, 38(7):520853. SU D C, SHI Y J, XU G H. Numerical simulation of coupled flow field of helicopter/ship[J]. Acta Aeronoutica et Astronautica Sinica, 2017, 38(7):520853(in Chinese).
[3] 刘晨, 王江峰, 伍贻兆. 低马赫数流动中的预处理Euler方程的收敛特性[J]. 航空学报, 2009, 30(5):842-848. LIU C, WANG J F, WU Y Z. Convergence characteristics of preconditioned Euler equations at low Mach numbers[J]. Acta Aeronoutica et Astronautica Sinica, 2009, 30(5):842-848(in Chinese).
[4] 肖中云, 江雄, 陈作斌, 等.低速预处理方法在悬停旋翼模拟中的应用[J]. 航空学报, 2008, 29(2):321-326. XIAO Z Y, JIANG X, CHEN Z B, et al. Application of low speed preconditioning to hovering rotor simulation[J]. Acta Aeronoutica et Astronautica Sinica, 2008, 29(2):321-326(in Chinese).
[5] XIE F T,SONG W P,HAN Z H. Numerical study of high-resolution scheme based on preconditioning method[J]. Journal of Aircraft, 2009, 46(2):520-525.
[6] HAN Z H, HE F, SONG W P, et al. A preconditioned multigrid method for efficient simulation of three-dimensional compressible and incompressible flows[J]. Chinese Journal of Aeronautics, 2007, 20(4):289-296.
[7] 李欢, 陈江涛, 马明生, 等. 一种基于特征关系式的预处理远场边界条件研究[J]. 航空学报, 2017, 38(12):121364. LI H, CHEN J T, MA M S,et al. Study of a farfield boundary condition for preconditioning systems based on characteristic relations[J]. Acta Aeronoutica et Astronautica Sinica, 2017, 38(12):121364(in Chinese).
[8] LIU Z Y, LIU W,NIE X Y, et al. Computational-fluid-dynamics solver with preconditioned method for aerodynamic simulation of high-lift configuration[J]. Journal of Aircraft, 2016, 53(4):1056-1064.
[9] 韩忠华, 宋文萍, 乔志德.一种隐式预处理方法及其在定常和非定常流动数值模拟中的应用[J]. 计算物理, 2009, 26(5):679-684. HAN Z H, SONG W P, QIAO Z D. An implicit preconditioning method for steady and unsteady flows[J]. Chinese Journal of Computational Physics, 2009, 26(5):679-684(in Chinese).
[10] COLIN Y, DENIAU H, BOUSSUGE J F. A robust low speed preconditioning formulation for viscous flow computations[J]. Computers & Fluids, 2011, 47(7):1-15.
[11] SHISHIR A P, SANKARAN V, THOMAS H P. Implementation of preconditioned dual-time procedures in OVER-FLOW:AIAA-2003-0072[R]. Reston, VA:AIAA, 2003.
[12] POTSDAM M A, SANKARAN V, PANDYA S A. Unsteady low Mach preconditioning with application to rotorcraft flows:AIAA-2007-04473[R]. Reston, VA:AIAA, 2007.
[13] SACHDEV J S, HOSANGADI A. Improved flux formulations for unsteady low Mach number flows:ADA588085[R]. Edwards:AFMC, 2012.
[14] 夏健, 田书玲, 王江峰, 等. 三维动态非结构重叠网格Navier-Stokes方程并行算法[J]. 航空学报, 2008, 29(5):1118-1124. XIA J, TIAN S L, WANG J F, et al. Parallel computing strategy for 3D dynamic overset unstructured Navier-Stokes solver[J]. Acta Aeronoutica et Astronautica Sinica, 2008, 29(5):1118-1124(in Chinese).
[15] WEISS J M, SMITH W A. Preconditioning applied to variable and constant density flows[J]. AIAA Journal, 1995, 33(11):2050-2057.
[16] LEE S H. Convergence characteristics of preconditioned Euler equations[J]. Journal of Computational Physics, 2005, 208(1):266-288.

A new Blend low speed preconditioning method for numerical simulation of rotor interaction flowfield

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Jinchao MA, Yang LU, Liangquan WANG, Kuihui SONG. Active control test of tiltrotor near-field aeroacoustics based on higher harmonic control [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 528602-528602.
[2]	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.
[3]	Zhuangzhuang CUI, Xin YUAN, Guoqing ZHAO, Simeng JING, Qijun ZHAO. Influence of control strategy on forward flight performance of coaxial rigid rotor high⁃speed helicopters [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529256-529256.
[4]	Pengpeng SUN, Ping’an LIU, Feng FAN, Wei ZENG. Aerodynamic interaction characteristics of coaxial rigid rotor⁃fuselage in hover condition [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529284-529284.
[5]	Jiaqi LIU, Rongqian CHEN, Jinhua LOU, Xu HAN, Hao WU, Yancheng YOU. Aerodynamic shape optimization of high-speed helicopter rotor airfoil based on deep learning [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529828-529828.
[6]	Chang WANG, Long HE, Dongxia XU, Min TANG, Shuai MA, Ximing WU. Flow control drag reduction of hub on coaxial rigid rotor aircraft [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529084-529084.
[7]	Changhao LIU, Yihua CAO, Xiaomeng MEI, Maosheng WANG, Guanglin ZHANG. Transport effectiveness evaluation of high⁃speed helicopters [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 530182-530182.
[8]	Weiguo ZHANG, Min TANG, Jie WU, Xianmin PENG, Guichuan ZHANG, Bowen NIE, Liangquan WANG, Chaoqun LI. Overview of wind tunnel test research on tiltrotor aircraft [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 530114-530114.
[9]	Zonghui WANG, Yunjun YANG, Hongrui ZHAO, Xuechen WANG. Aerodynamic optimization design of tiltrotor under multiple flight conditions [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529024-529024.
[10]	Yilan ZENG, Dong HAN, Zhuangzhuang LIU, Xin ZHOU. Driving rotation characteristics of a compound helicopter’s rotor undergoing upwash in high⁃speed flight [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529061-529061.
[11]	Shaoqiang HAN, Wenping SONG, Zhonghua HAN, Jianhua XU. High-accuracy numerical-simulation of unsteady flow over high-speed coaxial rigid rotors [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529064-529064.
[12]	Zixu WANG, Pan LI, Ke LU, Zhenhua ZHU, Renliang CHEN. Optimized design of trim strategy for coaxial rigid rotor high-speed helicopter [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529069-529069.
[13]	Jinghui DENG. Key technologies and development for high-speed helicopters [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529085-529085.
[14]	Hua YANG, Shusheng CHEN, Zhenghong GAO, Quanfeng JIANG, Wei ZHANG. Rotor aerodynamic data fusion based on Bayesian framework [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(8): 128960-128960.
[15]	Qichang ZHAO, Yiquan WU, Yubin YUAN. Progress of ship detection and recognition methods in optical remote sensing images [J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(8): 29025-029025.