Coupled Thermo-Structural Analysis Model of Solid Rocket Motor Nozzle considering the Variation of Friction Coefficient under Operating Conditions

Figure 15

The history of contact number for the two possible flame leak passageways.

(a) Possible flame leak passageway 1 → 2 → 3 → 4

(b) Possible flame leak passageway 5 → 6 → 7 → 8