| Abstract: | The combustion behaviour of a cylindrical port burning PVC plastisol hybrid fuel grain in an oxidizing stream of gaseous oxygen has been studied and the effects of grain length and port size on the local regression rate, average regression rate and mass consumption rate have been investigated. Various combinations of grain length and port size have been employed to give a wide range of L/D ratios from 8 to 100. The average regression rate is found to increase with the increase of L/D ratio, whereas the mass consumption rate is found to decrease with the increase of L/D ratio. An attempt has also been made to correlate the fuel mass consumption rate with the Reynolds' number and the total mass flux. |
