Research Article
Numerical Simulation of Reactive Flows in Overexpanded Supersonic Nozzle with Film Cooling
Table 3
Operating test cases conditions and initial inputs for CFD calculation.
| Test cases | 1 | 2 | 3 | 4* |
| Measured quantities | LO2 mass flow | (g/s) | 44.9 | 46.1 | 67.2 | x | LH2 mass flow | (g/s) | 24.2 | 14.2 | 35.9 | x | o/f | ā | 1.86 | 3.25 | 1.87 | 6 |
| Conditions at the H2 cooling injector | cooling (H2) | (bar) | 3.1 | 3.2 | 4.3 | 4.3 | cooling (H2) | (K) | 291.35 | 294.25 | 295.65 | 294 |
| Conditions at the combustion chamber | (combustion chamber) | (bar) | 25.9 | 22.2 | 36.5 | 25.9 | (calculated) | (K) | 1693 | 2577 | 1945 | 3372 |
| Calculated species mass fractions | | % | 0.73229 | 0.85903 | 0.73366 | 0.87603 | | % | 0. | 0.00190 | 0. | 0.06548 | | % | 0.26771 | 0.13840 | 0.26634 | 0.03777 | | % |
0. | 0.00001 | 0. | 0.00580 | | % | 0. | 0.00065 | 0. | 0.00325 | | % | 0. | 0.00001 | 0. | 0.01168 |
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This case is performed only numerically.
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