|Table of Contents|

Influence of nozzle inlet Mach number on performance of scramjet nozzle(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2011年03期
Page:
18-21
Research Field:
研究与设计
Publishing date:

Info

Title:
Influence of nozzle inlet Mach number on performance of scramjet nozzle
Author(s):
WEN Ke;  LI Xu-chang;  MA Cen-rui;  MA Hai-ying;  SONG Ya-fei
Missile Institute, Air Force Engineering University, Sanyuan 713800, China
Keywords:
scramjet;  asymmetric ramp-nozzle;  nozzle inlet Mach number;  numerical simulation
PACS:
V235-34
DOI:
-
Abstract:
The RNG k-ε turbulence models and finite volume method were used to solve the conservative Reynolds-averaged Navier-Stokes equations and simulate the flow field and performance of the scramjet asymmetric ramp-nozzle designed with multi-target optimization method. The characteristics of the nozzle were numerically studied under the condition of various nozzle inlet Mach number. The simulation result shows that the variation of the nozzle inlet Mach number may influence the internal flow parameter of the nozzle, the increased or reduced inlet Mach number leads to up or down in thrust and lift force simultaneously, and maybe affects the stabilization of hypersonic air vehicle.

References:

[1]EDWARDS C L W, SMALL W J, WEIDNER J P, et al. Studies of scramjet/airframe integ-ration techniques for hypersonic aircraft, AIAA 75-58 [R]. USA: AIAA, 1975.
[2]PERRIER P, RAPUC M, ROSTAND P. Nozzle and afterbody design for hypersonic airbreathing vehicles, AIAA 96-4548 [R]. USA: AIAA, 1996.
[3]GRONLAND T A, CAMBIER J L. Sensitivity to physical modeling for nozzle/afterbody flowfields, AIAA 96-4547[R]. USA: AIAA, 1996.
[4]晏至辉, 刘卫东, 超燃冲压发动机尾喷管数值分析[J]. 导弹与航天运载技术, 2006(5): 50-52.
[5]张艳慧, 徐惊雷, 张堃元. 超燃冲压发动机非对称喷管设计点性能 [J]. 推进技术, 2007, 28(3): 282-286.
[6]徐惊雷, 张艳慧, 张堃元. 超燃冲压发动机非对称喷管非设计点性能计算[J]. 推进技术, 2007, 28(3): 287-290.
[7]汪维娜, 王占学, 乔渭阳. 单斜面膨胀喷管几何参数对流场和性能的影响[J]. 航空动力学报, 2006, 21(2): 280-284.
[8]晏至辉. 超燃冲压发动机尾喷管仿真和试验研究[D]. 长沙: 国防科学技术大学, 2005.
[9]李建平, 宋文艳, 陈亮. 超燃冲压发动机尾喷管性能研究[J]. 机械设计与制造, 2008(6): 95-97.

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