Table 1: Fuel grain gemetries for helix regression tests.

Grain no.
Fuel port parameters
Port length, cm (L) Pitch length, cm (P) Initial port diameter, cm (D0) Initial helix diameter, cm (d) Pitch ratio, N*d/D No. of burns
0 35.98 15.24 1.524 --- --- 3
1 35.98 15.24 1.524 0.762 1.177 5
2 35.98 15.24 1.524 1.143 1.77 5
3 35.98 15.24 1.524 1.524 2.361 6
4 22.86 15.24 1.524 0.762 0.75 5
5 22.86 2.7 1.524 1.143 6.35 6