Investigation of transfer line cool-down transients using equilibrium two-phase models

Optimization of the transfer line cool-down process is essential for propellant loading as well as thermal management in space flights. Hence, selection of an appropriate numerical model for the investigation of the same has significant industrial application. So, in this work, the predictability of cool-down transients by homogeneous and slip flow models are studied by simulating experimental work reported in the literature. By investigating the thermal and pressure transients in the wall material and fluid flow path respectively, the predictive capability of the above models is discussed in detail.