Research on Gas Exploration Shock Wave Spread Law via One-Way Bifurcation Pipeline

Table 1

Coefficient shunt and attenuation coefficient of the gas explosion shock wave via the one-way bifurcation pipeline.

Shock wave overpressure	Branch bifurcation angle β (°)	Length of gas in the explosion chamber (g/m^3)	Testing point 1 (MPa)	Testing point 2 (MPa)	Testing point 3 (MPa)	Branch pipeline bifurcation coefficient M	Straight pipeline attenuation coefficient K1	Branch pipeline attenuation coefficient K2
Peak overpressure	30	4	21.60	15.29	14.60	0.96	1.41	1.48
		5	34.69	24.31	22.22	0.91	1.43	1.56
		6	44.24	29.93	26.16	0.87	1.48	1.69
	45	4	30.80	23.50	20.39	0.87	1.31	1.51
		5	35.80	26.67	22.06	0.83	1.34	1.62
		6	45.48	32.50	26.67	0.82	1.40	1.71
	60	4	33.17	28.31	20.82	0.74	1.17	1.59
		5	37.25	30.46	21.67	0.71	1.22	1.72
		6	46.92	37.12	26.50	0.71	1.26	1.77
	90	4	32.05	29.11	17.97	0.62	1.10	1.78
		5	37.62	33.63	20.61	0.61	1.12	1.83
		6	46.24	39.68	24.39	0.61	1.17	1.90
	120	4	34.45	32.01	17.38	0.54	1.08	1.98
		5	39.44	35.68	18.76	0.53	1.11	2.10
		6	45.67	40.45	21.14	0.52	1.13	2.16
	135	4	27.08	25.67	12.82	0.50	1.06	2.11
		5	41.40	39.08	17.82	0.46	1.06	2.32
		6	47.42	44.07	19.77	0.45	1.08	2.40
	150	4	24.75	23.87	10.21	0.43	1.04	2.42
		5	41.97	40.17	15.47	0.39	1.04	2.71
		6	46.53	43.99	16.50	0.38	1.06	2.82