Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor

Table 1

Test matrix for cavity to main channel flow rate ratio and equivalence ratio study.

Test matrix: ratio of flow rates
Cavity equivalence (−)	0.7	1	1.3	1.5
Hydrogen flow (SLPM)	30	30	30	30
Cavity airflow (kg/min)	0.13	0.09	0.07	0.06
Ratio of cavity to main airflow	Main airflow (kg/min)
0.2	0.66	0.46	0.35	0.31
0.15	0.88	0.61	0.47	0.41
0.1	1.31	0.92	0.71	0.61
0.05	2.63	1.84	1.41	1.23