Transient study on filling characteristics of LOX dome

Abstract The 3D flow filling process of LOX (Liquid Oxygen) dome is studied in a liquid oxygen/methane rocket engine. volume, field pressure and velocity distributions oxygen at different time are determined. property propellant the injection characteristic obtained. results show that when has not been filled, state disorder, flows around annular wall middle dome. static near equalizing orifice inlet high slow. When completed, outlet each same. stable state, rate decreases. overall distribution more uniform. In addition, dome, arrival area different. There delays on panel, opposite section latest. This result leads to inhomogeneity thrust chamber.