Investigation on Two-phase Priming Process of Propellant in Complex Pipeline
In this paper,based on FLUENT,the VOF model is used to investigate the propellant-air two-phase flow characteristics of the priming process in complex pipeline.The main findings include:1)when two jets collide,the air volume is the smallest and the pressure reaches its peak;subsequently,the fluid oscillates back and forth,causing fluctuations in the volume,pressure,and inlet flow rate;at steady state,the volume of air remains unchanged,the pressure is equal to the inlet pressure,and the inlet flow rate is 0;2)The collision between the jet and the wall at the inlet,as well as the collision between two jets,will generate a large number of micro bubbles,with a minimum bubble size of approximately 17 μm;3)The filling process under different initial and inlet pressures is similar.
complex pipelinepriming process of liquid propellantphase distributionbubble size
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