Volume 23 Issue 10
Oct.  2008
Turn off MathJax
Article Contents
ZHANG Li-fen, LIU Zhen-xia, Lü Ya-guo. Comparison of four turbulence models in diffusing S-duct[J]. Journal of Aerospace Power, 2008, 23(10): 1888-1891.
Citation: ZHANG Li-fen, LIU Zhen-xia, Lü Ya-guo. Comparison of four turbulence models in diffusing S-duct[J]. Journal of Aerospace Power, 2008, 23(10): 1888-1891.

Comparison of four turbulence models in diffusing S-duct

  • Received Date: 2007-10-15
  • Rev Recd Date: 2008-02-20
  • Publish Date: 2008-10-28
  • Four turbulence models: Realizable κ-ε,S-A(Spalart-Allmaras),SST(Shear stress transport) and RSM(Reynolds stress equation model),were compared by simulating separated flow in a diffusing S-duct.The numerical results show the capability of each turbulence model in dealing with separation.Before separation,the predicted results agree well with experiment for four models,but in separated region,the turbulence model has important effect in simulating separation.SST model is compared to RSM in simulating separation and pressure coefficient,however not as clearly as RSM.S-A model under predict the separation and the separated region is smaller than experiment.Mach number is higher than experimental data for four models.Pressure recoveries are similar for different models,and are within 0.7% agreement with experimental data.

     

  • loading
  • [1]
     Ellington C P.The aerodynamics of hovering insect flight.Ⅱ.Morphological parameters[J].Phil Trans R Soc Lond.B,1984,305:17240.
    [2]
     Rayner J M V.A new app roach to animal flight mechanics[J].Exp.Biol.,1979,80:17 254.
    [3]
     Blake R W.Hovering performance of a negatively buoyant fish[J].Can.J.Zool.,1983,61:2629 22630.
    [4]
     Ellington C P.The aerodynamics of hovering insect flight.I.The quasi 2steady analysis[J].Phil.Trans.R.Soc. Lond.B.,1984,305:1215.
    [5]
     Weis2Fogh T.Flapping flight and power in birds and in2 sect s,conventional and novel mechanisms[J].Swimming and Flying in Nat ure,1975,12:7292762.
    [6]
     邵立民,宋笔锋,熊超,等.微型扑翼飞行器风洞试验初步研究[J].航空学报,2007,28(2):2752280.SHAO Limin,SON G Bifeng,XION G Chao,et al.Exper2imental investigation of flapping 2wing MAV in wind tunnel[J].Acta Aeronautica et Ast ronautica Sinica,2007,28(2):2752280.(in Chinese)
    [7]
     Liu H,Ellington C P,Kawachi K,et al.A co mp utational fluid dynamic st udy of hawkmot h hovering[J].Exp.Biol.,1998,201:461 2477.
    [8]
     孙茂,熊燕.微型飞行器的仿生力学———蜜蜂悬停飞行的动稳定性研究[J].航空学报,2005,26(4):3852391.SU N Mao,XION G Yan.Biomimetic mechanics of micro2 air vehicles—Dynamic flight stabilit y of a hovering honey2bee[J].Acta Aeronautica et Ast ronautica Sinica,2005,26(4):3852391.(in Chinese)
    [9]
     曾锐,昂海松.仿鸟复合振动的扑翼气动分析[J].南京航空航天大学学报,2003,35(1):6212.ZEN G Rui,AN G Haisong.Aerodynamic co mp utation of one flapping-Wing simulating bird wings[J].Acta of Nanjing Universit y of Aeronautics and Ast ronautics,2003,35(1):6212.(in Chinese)
    [10]
     DeLaurier J D.An aerodynamic model for flapping2wing flight[J].Aeronaut,1993,97:125 2130.
    [11]
     Wu J H,Sun M.Unsteady aerodynamic forces of a flap2ping wing[J].Exp.Biol.,2004,207:141321427.
    [12]
     Combes S A,Daniel T L.Shape,flapping and flexion:Wing and fin design for forward flight[J].The Journal ofExperimental Biology,2001,204:2073 22085.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1759) PDF downloads(459) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return