Research on Performance of H₂ Rich Blowout Limit in Bluff-Body Burner

Table 1

Blockage ratio and gas flow velocities (1 atm, 293 K).

Bluff-body diameter 𝑑/mm	20	30	40	50	60	70
Blockage ratio B	0.2	0.3	0.4	0.5	0.6	0.7
Gas velocity V/(m/s)	1	2	5	10	20	50
Re𝐷	4.0𝑒+3	8.3𝑒+3	2.2𝑒+4	4.4𝑒+4	9.1𝑒+4	2.4𝑒+5