Review Article
Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines
Table 1
Values of
and
to be used in (
3) (
in m/s and
in kg/m
2 s).
| Legend | System | Propellants | | | Note | Reference | (kg/m2/s) |
| | Fuel/additives | | | | | | | B | Pure HTPB | GOX/HTPB | |
0.681
| — | [4] | 35–280 | W | Paraffin | GOX/Wax | |
0.690
| — | [5] | 20–120 | WAl | Paraffin/13% Silbal | GOX/fuel | |
0.766
| — | [6] | 150–300 | C | Cryo | GOX/CH4 | |
0.830
| — | [7] | 3–30 | S1 | Pure HTPB | GOX/fuel | — | — | baseline, [8, Figure 11] | [8] | 80–150 | S12 | HTPB/13% Al325 | GOX/fuel | — | — | [8, Figure 11] | [8] | 80–120 | S13 | HTPB/13% ALEX | GOX/fuel | — | — | coated, [8, Figure 11] | [8] | 70–120 | Hb | Pure HTPB | GOX/HTPB | |
0.530
| baseline | [9] | 50–400 | HAl | HTPB/Al | GOX/fuel | |
0.930
| — | [9] | 50–400 | HAP | HTPB/AP | GOX/fuel | |
0.710
| — | [9] | 50–400 | HAPAl | HTPB/Al/AP | GOX/fuel | |
0.97
| — | [9] | 50–400 |
| | Swirl/grain geometry | | | | | | | VX | Vortex | GOX/HTPB | |
0.540
| — | [10] | 60–110 | V | End-burning + Swirl | GOX/PMMA | |
0.778
| — | [11] | 40–60 | Vb | End-burning + Swirl | GOX/PMMA | |
0.749
| no swirl | [11] | 40–60 | V | End-burning + Swirl | GOX/PMMA | |
0.641
| — | [11] | 10–20 | Vb | End-burning + Swirl | GOX/PMMA | |
0.581
| no swirl | [11] | 10–20 | RU | Radial | GOX/HTPB | |
0.570
| upper disk | [12] | 30–70 | RL | Radial | GOX/HTPB | |
0.700
| lower disk | [12] | 30–70 | CA | CAMUI | GOX/PE | |
0.800
| (11), | [13] | 200–700 |
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