Numerical and Experimental Study of Detonation Propagation in a Rectangular Tube with Obstacles

In this paper experimental research on rotating detonation carried out at the Institute of Aviation (IA) in Warsaw are presented. Research was focused on 3-D numerical simulations of detonation propagation in cylindrical chambers and on evaluation of conditions at which rotating detonation is propagating in cylindrical channels for kerosene-hydrogen-air mixtures. Conducted simulations are used for analysis of complex flow – detonation front interaction and for estimating the thermodynamic parameters of the outflow gases. Extensive research on continuously propagating rotating detonation in many different chambers and in different fuel-air mixtures were tested. On bases of conducted calculations, as well as results of experimental study, a few chamber were selected for tests with GTD-350 engine. It was shown that application of the continuously rotating detonation to GTD-350 engine can results with increased efficiency of the engine.

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Numerical and experimental study of shock waves emanating from an open-ended rectangular tube

Shock Waves ◽

10.1007/s00193-016-0650-3 ◽

2016 ◽

Vol 26 (3) ◽

pp. 269-277 ◽

Cited By ~ 5

Author(s):

E. Yu. Koroteeva ◽

I. A. Znamenskaya ◽

F. N. Glazyrin ◽

N. N. Sysoev

Keyword(s):

Experimental Study ◽

Shock Waves ◽

Rectangular Tube

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Experimental study of the pinned double rectangular tube assembled buckling-restrained brace

Journal of Zhejiang University SCIENCE A ◽

10.1631/jzus.a1600483 ◽

2017 ◽

Vol 18 (1) ◽

pp. 20-32 ◽

Cited By ~ 4

Author(s):

Zi-qin Jiang ◽

Yan-lin Guo ◽

Ai-lin Zhang ◽

Chao Dou ◽

Cai-xia Zhang

Keyword(s):

Experimental Study ◽

Buckling Restrained Brace ◽

Rectangular Tube

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Experimental Study of Flow Oscillation in a Rectangular Jet-Driven Tube

Journal of Fluids Engineering ◽

10.1115/1.2909363 ◽

1990 ◽

Vol 112 (1) ◽

pp. 23-27 ◽

Cited By ~ 17

Author(s):

J. Iwamoto

Keyword(s):

Experimental Study ◽

Flow Field ◽

Steady Flow ◽

Oscillatory Flow ◽

Necessary Conditions ◽

Experimental Results ◽

Flow Oscillation ◽

Rectangular Jet ◽

Rectangular Tube

Several papers, mainly of a theoretical nature, have been published on the oscillatory flow in a Hartmann-Sprenger tube. Quantitative exploration of the flow field has proved difficult and details are lacking. In the present work, using a rectangular tube, synchronous shadow-photography has been applied to visualize the flow field during stable oscillatory flow. The measurement of pressure has also been made for the case of steady flow when both ends of the tube are open. From these experimental results the necessary conditions for starting and maintaining a stable oscillatory flow in an H-S tube have been established.

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