实验流体力学

Numerical simulation of shock (blast) wave interaction with bodies

LE Jia-ling, NI Hong-li

1999, 13(3): 1-9. doi: 10.3969/j.issn.1672-9897.1999.03.001

Abstract(113) PDF(9)

Abstract:
Some typical results of computation on the shock(blast) wave interaction (2-D and 3-D) with bodies and its experimental validation in shock tube are summarized,the suggestion for improving the numerical method(difference scheme and grid systems),developing 3-D optical quantitative visualization technology and further studying the unsteady turbulent flow are put forward.

The investigation of the aerodynamic properties and flow field of the hypervelocity projectiles at the ballistic range

1999, 13(3): 10-20.

Abstract(87) PDF(3)

Abstract:
The range equipment for the investigation of the hypervelocity aerodynamic properties and flow field of explosively formed projectile(EFP) models is described.The technique of the full-scale interferogram recording is briefly reported.The procedure of the radial density distributions reconstruction is discussed.The aerodynamic drag of different models at zero angle of attack in the experiment is calculated using the simplified procedure.The qualitative considerations about aerodynamic stability for various EFP forms are proposed.The fundamentals of the numerical calculation technique applied to research of hypervelosity flight characteristics of composed bodies are formulated.

Stationary stability of free vortex in the flow over the backward-facing step

HUANG Ming-ke

1999, 13(3): 21-24. doi: 10.3969/j.issn.1672-9897.1999.03.003

Abstract(91) PDF(5)

Abstract:

The research of effect of flow turbulence on the aerodynamic characteristics of a wing-body combination at high angles of attack

BAI Cun-ru, TU Xing, GUO Qu-yu, HE Ke-min

1999, 13(3): 25-31. doi: 10.3969/j.issn.1672-9897.1999.03.004

Abstract(100) PDF(3)

Abstract:

Preliminary results of 37mm bore ram accelerator hot shot tests

LIU Sen, JIAN He-xiang, BAI Zhi-yong, PIN Xin-hong, BU Shao-qing