Question: A rocket nozzle is to be constructed with dimensions as shown in Fig. The following table gives the composition of the exhaust products:
The stagnation pressure is 3400 kPa and the stagnation temperature is 3000°C. The nozzle is to be constructed of graphite. The objective of the problem is to estimate the rate of erosion (ablation) of the graphite at the throat, and particularly to estimate the time elapsed for a 10 percent increase in throat diameter.
