大连海事大学学报 >
2015 , Vol. 41 >Issue 3: 67 - 72
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2015.03.012
载机舰船非定常气流场数值模拟
收稿日期: 2014-08-06
修回日期: 2014-11-08
网络出版日期: 2014-11-08
基金资助
中国博士后科学基金资助项目(2013M532119).
Numerical simulation on unsteady ship airwake
Received date: 2014-08-06
Revised date: 2014-11-08
Online published: 2014-11-08
关键词： 舰船; 非定常气流场; 数值模拟; 简化护卫舰模型(SFS); 计算流体动力学(CFD); LES湍流模型
贺少华 , 刘东岳 . 载机舰船非定常气流场数值模拟[J]. 大连海事大学学报, 2015 , 41(3) : 67 -72 . DOI: 10.16411/j.cnki.issn1006-7736.2015.03.012
Taking simple frigate shape(SFS) as research object, numerical simulation of unsteady airwake was performed with third order MUSCL and ROE spatial discretization scheme, second order implicit temporal discretization scheme and Smagorinsky-Lilly LES turbulence model. The results’ sensitive to model parameters of structural grid were checked to ensure more than 10 layers grids in boundary layer with y+ among 101~102. The velocity of inflow was set to be 0.3Ma, and parallel solution was conducted by computer cluster. FFT of unsteady flow velocity and its fluctuations were given to investigate spectrum feature of flow field. Dimensionless results show that velocity fluctuations of SFS’ airwakes are obvious, time-averaged of unsteady results have more differences from steady-state in local, which maximum value can approximately reach 10%.And steady-state solution has smaller values to time-averaged results, and the dominant frequencies of SFS flow field are less than 1 Hz. At last the numerical simulation was verified by experimental data provided in previous research.
［1］陆超, 姜治芳, 王涛. 两种飞行甲板形式的舰船空气流场特性比较［J］. 舰船科学技术,2009,31(7):29-31.
LU Chao, JIANG Zhi-fang, WANG Tao. A comparison of ship’s airwakes with different flight decks［J］. Ship Science and Technology, 2009,31(7):29-31.(in Chinese)
［2］洪伟宏,姜治芳,王涛.上层建筑形式及布局对舰船空气流场的影响［J］.中国舰船研究,2009,4(2):53-57.
HONG Wei-hong, JIANG Zhi-fang, WANG Tao. Influence on airwake with different layout of ship superstructure［J］.Chinese Journal of Ship Research,2009,4(2):53-57.(in Chinese)
［3］曲飞,陆超,姜治芳,等.舰船舰面空气流场的CFD数值模拟探讨［J］.中国舰船研究,2009,4(5):23-27.
QU Fei, LU Chao, JIANG Zhi-fang, et al. CFD numerical simulation of ship airwake［J］.Chinese Journal of Ship Research,2009, 4(5):23-27.(in Chinese)
［4］郜野,刘长猛.护卫舰气流场数值计算研究［J］.哈尔滨工程大学学报,2013,34(5):599-603.
GAO Ye, LIU Chang-meng. Numerical simulation of frigate ship airwake［J］. Journal of Harbin Engineering University, 2013,34(5): 599-603.(in Chinese)
［5］贺少华,刘东岳.载机舰船气流场相关研究综述［J］.舰船科学技术, 2014,36(2):1-7.
HE Shao-hua, LIU Dong-yue. A review about researches on ship airwakes［J］.Ship Science and Technology,2014,36(2):1-7.(in Chinese)
［6］POLSKY S A, BRUNER C W. Time accurate CFD analysis of ship air wake with coupled v-22 flow［C］//18th Applied Aerodynamics Conference. ［S.l.］:American Institue of Aeronautices and Astronautics(AIAA),2000.
［7］SYMS G F. Numerical simulation of frigate airwakes［J］.International Journal Computational Fluid Dynamic, 2004,18(2):199-207.
［8］POLSKY S A. A computational study of unsteady ship airwake［C］//40th AIAA Aerospace Sciences Meeting & Exhibit. ［S.l.］:AIAA,2002.
［9］GUILLOT M J, WALKER M A. Unsteady analysis of the airwake over the LPD-17［C］//18th Applied Aerodynamics Conference. ［S.l.］:AIAA,2000.
［10］POLSKY S A.CFD prediction of airwake flow fields for ships experiencing beam winds［C］//21st AIAA Applied Aerodynamics Conference. ［S.l.］:AIAA,2003.
［11］CZERWIEC R M, POLSKY S A. LHA airwake wind tunnel and CFD comparison with and without bow flap［C］//22nd Applied Aerodynamics Conference and Exhibit. ［S.l.］:AIAA,2004.
［12］ZHANG F, XU Hon-yi, BALL N G. Numerical simulation of unsteady flow over SFS 2 ship model［C］//47th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. ［S.l.］:AIAA,2009.
［13］REDDY K R, TOFFOLETTO R, JONES K R W. Numerical simulation of ship airwake［J］.Computers & Fluids,2000(29): 451-465.
［14］SHIPMAN J,ARUNAJATESAN S, MENCHINI C, et al. Ship airwake sensitivities to modeling parameters［C］//43rd AIAA Aerospace Sciences Meeting and Exhibit. ［S.l.］:AIAA,2005.
［15]THORNBER B, STARR M, DRIKAKIS D. Implicit large eddy simulation of ship airwakes［D］.Cranfield,UK: Cranfield University,2007.
［16]MORA B R. Experimental investigation of the flow on a simple frigate shape(SFS)［J/OL］.The Scientific World Journal. (2014-01-12)［2014-08-06］.http://www.hindawi.com/journals/tswj/2014/818132/.
［17］ANUPAM S.LYLE N L. Airwake simulation on an LPD-17 ship［C］//15th AIAA Computational Fluid Dynamics Conference. ［S.l.］:AIAA,2001.
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