Discussion: “Cavitation in Turbopumps—Part 1” (Stripling, L. B., and Acosta, A. J., 1962, ASME J. Basic Eng., 84, pp. 326–338) and “Cavitation in Turbopumps—Part 2” (Stripling, L. B., 1962, ASME J. Basic Eng., 84, pp. 339–349)