Mathematical models, Unsteady flow (Aerodynamics)
Numerical treatments have become the most accurate methods for transient liquid flows analysis. Based on a computer code provided by NASA/KSC, this paper presents two simulations of cryogenic transfer systems. Experimental data originated from the Space Shuttle Liquid Oxygen Servicing were obtained during drain flows. Two sets of data (pressure at various locations versus time) corresponding to a drain stop and a drain initiation were used for a comparison with the predicted pressures. The first test case was a single-phase flow whereas the second one was associated with liquid-column separation and vapor cavity collapse. Major modifications were made to the computer program for two-phase flow treatments. Encouraging results have been obtained validating the model and opening new perspectives for future work.
Hosler, E. Ramon
Master of Science (M.S.)
College of Engineering
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Length of Campus-only Access
Masters Thesis (Open Access)
Pfister, Philippe, "Mathematical Model for Estimating Transient Pressure Surges in Cryogenic Liquid-Vapor Systems" (1983). Retrospective Theses and Dissertations. 709.