Experimental study of finite amplitude pulsatile pressure waves in elastic tubes

In this paper, the process of the gas explosion waves was investigated in a closed pipeline. The research indicated that the interaction between pressure waves and flame waves were extensive in the course of gas explosion, which took effect of both enhancement and inhibition, and played a leading role at different stages. Not only could the flame waves raise the pressure peak and amplitude, but they also compressed the ascent stage of the pressure waves, stretched the descent stage. Eventually, detonation waves may come into being.

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Experimental study of finite-amplitude wave effects in ducts

10.2514/6.1974-60 ◽

1974 ◽

Author(s):

G. SCHINDLER

Keyword(s):

Experimental Study ◽

Finite Amplitude ◽

Amplitude Wave ◽

Wave Effects

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Unsteady pressure waves and shock waves in elastic tubes containing bubbly air-water mixtures

Acta Mechanica ◽

10.1007/bf01351459 ◽

1981 ◽

Vol 38 (1-2) ◽

pp. 1-17 ◽

Cited By ~ 6

Author(s):

H. J. Rath

Keyword(s):

Shock Waves ◽

Pressure Waves ◽

Unsteady Pressure ◽

Elastic Tubes ◽

And Shock Waves

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Modulated pressure waves in large elastic tubes

Chaos An Interdisciplinary Journal of Nonlinear Science ◽

10.1063/1.4819480 ◽

2013 ◽

Vol 23 (3) ◽

pp. 033128 ◽

Cited By ~ 18

Author(s):

G. R. Mefire Yone ◽

C. B. Tabi ◽

A. Mohamadou ◽

H. P. Ekobena Fouda ◽

T. C. Kofané

Keyword(s):

Pressure Waves ◽

Elastic Tubes

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Growth of Flame Front Turbulence

Journal of Heat Transfer ◽

10.1115/1.3247027 ◽

1986 ◽

Vol 108 (4) ◽

pp. 877-881 ◽

Cited By ~ 13

Author(s):

T. Tsuruda ◽

M. Harayama ◽

T. Hirano

Keyword(s):

Experimental Study ◽

Combustion Chamber ◽

Flame Front ◽

Pressure Wave ◽

High Speed ◽

Wall Turbulence ◽

Pressure Waves ◽

Fuel Type ◽

Fuel Concentration ◽

Schlieren Photography

An experimental study was performed on the growth of flame front turbulence by stimulating a laminar propagating flame with weak pressure waves, which were generated by sudden breaking of the membrane separating a small chamber from the combustion chamber. The flame front behavior was explored by using high-speed schlieren photography. About one millisecond after the first weak pressure wave passed the flame front, a very fine disturbance appeared at the central part of the flame front, where no effect of the wall turbulence could appear. Then, the area and strength of the disturbance were observed to increase rapidly. The effects of the pressure wave intensity, fuel concentration, and fuel type on the growth of this type of flame front turbulence were examined in detail.

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