REAL-GAS EFFECTS ON THE NORMAL SHOCK BEHAVIOR NEAR CURVED WALLS

被引:6
|
作者
SCHNERR, GH
LEIDNER, P
机构
[1] Institut für Strömungslehre und Strömungsmaschinen, Universität Karlsruhe (TH)
来源
PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1993年 / 5卷 / 11期
关键词
D O I
10.1063/1.858706
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The influence of dense gases on the curvature and the strength of a normal shock near curved walls is discussed. In classical gasdynamics there is a postshock expansion and the shock is curved upstream if the wall is convex. The transonic small disturbance theory for the problem has been derived, including the fundamental gasdynamic derivative GAMMA and the second nonlinearity parameter LAMBDA. Special attention is drawn on flows where GAMMA becomes either zero or negative. According to the similarity laws, change of the sign of GAMMA changes the sign of the velocity disturbances phi(x) and phi(y) and of the wall curvature. Thus an expansion shock is followed by a compression if r < 0 and the wall is concave. Again the shock is curved upstream. A variation of the second nonlinearity parameter LAMBDA influences the strength of the shock, its curvature, and of the postshock expansion. Considering a GAMMA > 0 flow at a convex wall, the postshock expansion and the shock curvature are weakened if LAMBDA > 0. Comparing the real gas flow with the perfect gas flow (e. g., r = 1.2 and LAMBDA = 0), both the expansion behind the shock and the shock curvature increase if A becomes negative.
引用
收藏
页码:2996 / 3003
页数:8
相关论文
共 50 条
  • [31] Real-gas effects on separation length in double-wedge flow
    Davis, J
    PROCEEDINGS OF THE THIRD EUROPEAN SYMPOSIUM ON AEROTHERMODYNAMICS FOR SPACE VEHICLES, 1999, 420 : 197 - 204
  • [32] Gas well production analysis with non-Darcy flow and real-gas PVT behavior
    Zeng, Fanhua
    Zhao, Gang
    JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2007, 59 (3-4) : 169 - 182
  • [33] NEW APPROXIMATE METHOD FOR CALCULATING REAL-GAS EFFECTS ON MISSILE CONFIGURATIONS
    MOORE, FG
    ARMISTEAD, MJ
    ROWLES, SH
    DEJARNETTE, FR
    JOURNAL OF SPACECRAFT AND ROCKETS, 1993, 30 (01) : 22 - 31
  • [34] Real-gas effects research associated with cryogenic transonic wind tunnel
    Huang Z.
    Wang N.
    Shi Z.
    Liao D.
    Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology, 2023, 45 (01): : 110 - 116
  • [35] A SIMULATION STUDY OF OSTWALD RIPENING OF GAS-BUBBLES IN METALS ACCOUNTING FOR REAL-GAS BEHAVIOR
    FICHTNER, PFP
    SCHROEDER, H
    TRINKAUS, H
    ACTA METALLURGICA ET MATERIALIA, 1991, 39 (08): : 1845 - 1852
  • [36] REAL-GAS BEHAVIOR OF HELIUM AS A COOLING MEDIUM FOR HIGH-TEMPERATURE REACTORS
    HEWING, G
    BRENNSTOFF-WARME-KRAFT, 1977, 29 (05): : 207 - 214
  • [37] Effects of the real-gas characteristics of carbon dioxide with impurities on the dry gas seal performance
    Chen W.
    Song P.
    Xu H.
    Sun X.
    Huagong Xuebao/CIESC Journal, 2020, 71 (05): : 2215 - 2229
  • [38] NORMAL SHOCK REFLECTION FORMULAS FOR A REAL GAS
    TAYLOR, TD
    JOURNAL OF SPACECRAFT AND ROCKETS, 1967, 4 (07) : 952 - &
  • [39] Calculation of real-gas effects on blunt-body trim angles
    Park, Chul
    Yoon, Seokkwan
    AIAA journal, 1992, 30 (04): : 999 - 1007
  • [40] COMPARATIVE-STUDY OF HIGH-RESOLUTION SHOCK-CAPTURING SCHEMES FOR A REAL-GAS
    MONTAGNE, JL
    YEE, HC
    VINOKUR, M
    AIAA JOURNAL, 1989, 27 (10) : 1332 - 1346